Measuring relays for main monitoring

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Protect individual system parts against being damaged

DOLD offers you a very wide portfolio of relays for network monitoring. The devices monitor electrical variables such as voltage, phase outage/asymmetry, neutral conductor usage, frequency as well as insulation errors. Typical uses are device and system protections, the supply of safety lighting devices, et cetera.

Frequency Relay IK 9143

Advantages

  • Easy setting
  • Without auxiliary voltage

Features

  • According to IEC/EN 60255-1
  • Monitoring of overfrequency and underfrequency (selectable) in A.C. power systems
  • Selection of frequency range for 50 or 60 Hz systems
  • Adjustable response value
  • Adjustable hysteresis
  • De-energized on trip (output relay not activated in case of error)
  • LED indicators for measuring voltage and contact position
  • 1 changeover contact
  • As option energized on trip (output relay activated in case of error)
  • Devices available in 2 enclosure versions:
    IK 9143: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    SK 9143: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • 17.5 mm width

Frequency Relay SK 9143

Advantages

  • Easy setting
  • Without auxiliary voltage

Features

  • According to IEC/EN 60255-1
  • Monitoring of overfrequency and underfrequency (selectable) in A.C. power systems
  • Selection of frequency range for 50 or 60 Hz systems
  • Adjustable response value
  • Adjustable hysteresis
  • De-energized on trip (output relay not activated in case of error)
  • LED indicators for measuring voltage and contact position
  • 1 changeover contact
  • As option energized on trip (output relay activated in case of error)
  • Devices available in 2 enclosure versions:
    IK 9143: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    SK 9143: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • 17.5 mm width
 

Mains Frequency Monitor MK 9143N

Advantages

  • Monitoring of 50 – and 60 Hz-current supply on over- and underfrequency
  • For precise frequency measuring with fast response time
  • High disturbance immunity
  • Separately adjustable trip points and separate outputs for overand underfrequency (1 or 2 c/o each)

Features

  • According to IEC / EN 60255-1
  • Monitoring of local generator sets and voltage supplies
  • MK 9143N / MH 9143:
    – Trip points adjustable precisely and reproducible on 10 step rotational switch in the range of ± 0,1 Hz to ± 5 Hz related to 50 or 60 Hz
    – Nominal frequency 50 or 60 Hz selectable
    – Fixed hysteresis optimised for trip point
    – Time delay for over and underfrequency each adjustable from 0 to 20 s
    – As option one common output for under and overfrequency
    – “Window”-mode (MK 9143N/400 / MH 9143/400)
  • MH 9143.38/008: With galvanic separated analogue output (current voltage) and 11 step LED chain for the actual frequency
  • MK 9143N/600 / MH 9143/600:
    – Variable alarm value in the range of 45 to 65 Hz
    – Hysteresis adjustable for under- and overfrequency separately adjustable 0 … 20 %
    – Common output for under and overfrequency “Window”-mode can be selected
  • Start up delay 0 … 30 s selectable
  • Manual or auto reset selectable
  • Output relay energized or de-energized on trip selectable for overfrequency
  • Output relay de-energized on trip for underfrequency
  • Universal frequency measuring input for AC 40 … 550 V
  • Several options for auxiliary supply
  • As option without aux. supply for voltage range AC 18 … 70 V or 70 … 275 V
  • LED indicators for auxiliary supply, input frequency, over and under frequency alarm
  • 2 possible contact arrangements
    MK 9143N and MK 9143N/600: 2 x 1 C/O contacts, width 22,5 mm
    MH 9143 and MH 9143/600: 2 x 2 C/O contacts, width 45 mm

Frequency Relay MK 9837N

Advantages

  • Universal usage
  • Easy handling

Features

  • According to IEC/EN 60255-1
  • Detection of over- or underfrequency of alternating voltage (adjustable function) (detection of over- and underfrequency see datasheet MK 9837N/5_0)
  • Fast reaction time by measuring duration of cycle of input frequency
  • Universal measuring input for AC-voltages of 15 … 280 V as well as 30 … 550 V
  • As option with measuring input for inverters
  • 4 ranges adjustable response value 1,5 … 200 Hz or 5 … 600 Hz
  • Adjustable hysteresis
  • Adjustable start up time delay 0 … 50 s at function underfrequency
  • Adjustable monitoring time for missing input signal at function overfrequency
  • Response delay programmable via terminals 0 … 100 s
  • Alarm storing or auto-reset programmable via terminals
  • Galvanic separation between measuring input, auxiliary voltage and output contacts
  • MH 9837 available with wide input range for auxiliary supply (AC/DC 24 … 60 V or AC/DC 110 … 230 V)
  • 2 changeover contacts, closed circuit operation
  • Open circuit operation on request
  • LED indication for auxiliary voltage, measuring voltage and alarm status
  • MH 9837.12/008: With galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
  • Device available with 2 response values and seperately controlled outputrelays for under- and overfrequency see MK 9837N/500
  • 2 possible compact designs:
    MK 9837N: Width 22,5 mm
    MH 9837: Width 45 mm

Frequency Relay MK 9837N/5_0

Advantages

  • Separate output signals for under and over frequency
  • Simple wiring
  • Easy handling

Features

  • According to IEC/EN 60255-1
  • Monitoring of AC voltage for under and overfrequency, can be used also for pre-warning (monitoring of AC voltage for under or overfrequency see datasheet MK 9837N)
  • Separate relay outputs for over- or underfrequency (1 or 2 changeover contacts each)
  • Alternative usage for monitoring of a frequency window
  • Separate adjustment of response value for over- or underfrequency at 4 ranges each, 1.5 … 200 Hz or 5 … 600 Hz
  • Second response value for prewarning possible
  • Fast reaction time by measuring duration of cycle of input frequency
  • Universal measuring input for AC-voltages of 15 … 280 V as well as 30 … 550 V
  • As option with measuring input for inverters
  • Programmable hysteresis of response value: 2 … 10 %
  • Start up time delay programmable via terminals from 0 … 50 s e.g. continuously
  • Manual or auto-reset programmable via terminals
  • Galvanic separation between measuring input, auxiliary voltage and output contacts
  • MH 9837/508: With galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
  • MH 9837/5_0: With wide input range for auxiliary voltage available (AC/DC 24 … 60 V or AC/DC 110 … 230 V)
  • Closed circuit operation (de-energized on trip)
  • LED indication for auxiliary voltage, measuring voltage and alarm status
  • Device available with 2 contacts
    MK 9837N/5_0: 2 x 1 changeover contact
    MH 9837/5_0: 2 x 2 changeover contacts or wide auxiliary voltage range
  • 2 possible compact designs:
    MK 9837N/5_0: Width 22,5 mm
    MH 9837/5_0: Width 45 mm

Frequency Relay IL 9837

Features

  • According to IEC/EN 60255-1
  • Overfrequency or underfrequency monitoring of AC voltages
  • Adjustable response value fmin. or fmax 5 … 200 Hz or 15 … 600 Hz
  • Adjustable hysteresis
  • Large voltage range of the measuring input (nominal voltage AC 24 … 440 V)
  • De-energized on trip
  • LED indication for auxiliary voltage, measuring voltage and contact position
  • 1 changeover contact
  • As option for frequency inverters with a range of 1 … 300 Hz
  • 2 changeover contacts available on request
  • As option adjustable start-up delay available
  • Energized on trip function available on request
  • Devices available in 2 enclosure versions:
    IL 9837: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    SL 9837: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • 35 mm width

Frequency Relay SL 9837

Features

  • According to IEC/EN 60255-1
  • Overfrequency or underfrequency monitoring of AC voltages
  • Adjustable response value fmin. or fmax 5 … 200 Hz or 15 … 600 Hz
  • Adjustable hysteresis
  • Large voltage range of the measuring input (nominal voltage AC 24 … 440 V)
  • De-energized on trip
  • LED indication for auxiliary voltage, measuring voltage and contact position
  • 1 changeover contact
  • As option for frequency inverters with a range of 1 … 300 Hz
  • 2 changeover contacts available on request
  • As option adjustable start-up delay available
  • Energized on trip function available on request
  • Devices available in 2 enclosure versions:
    IL 9837: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    SL 9837: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • 35 mm width
 

Frequency Relay BA 9837

Features

  • According IEC/EN 60255-1
  • Detection of under- or overfrequency
  • Adjustable response value
  • Optionally 1 or 2 changeover contacts
  • Width 45 mm

Mains Frequency Monitor MH 9143

Advantages

  • Monitoring of 50 – and 60 Hz-current supply on over- and underfrequency
  • For precise frequency measuring with fast response time
  • High disturbance immunity
  • Separately adjustable trip points and separate outputs for overand underfrequency (1 or 2 c/o each)

Features

  • According to IEC / EN 60255-1
  • Monitoring of local generator sets and voltage supplies
  • MK 9143N / MH 9143:
    – Trip points adjustable precisely and reproducible on 10 step rotational switch in the range of ± 0,1 Hz to ± 5 Hz related to 50 or 60 Hz
    – Nominal frequency 50 or 60 Hz selectable
    – Fixed hysteresis optimised for trip point
    – Time delay for over and underfrequency each adjustable from 0 to 20 s
    – As option one common output for under and overfrequency
    – “Window”-mode (MK 9143N/400 / MH 9143/400)
  • MH 9143.38/008: With galvanic separated analogue output (current voltage) and 11 step LED chain for the actual frequency
  • MK 9143N/600 / MH 9143/600:
    – Variable alarm value in the range of 45 to 65 Hz
    – Hysteresis adjustable for under- and overfrequency separately adjustable 0 … 20 %
    – Common output for under and overfrequency “Window”-mode can be selected
  • Start up delay 0 … 30 s selectable
  • Manual or auto reset selectable
  • Output relay energized or de-energized on trip selectable for overfrequency
  • Output relay de-energized on trip for underfrequency
  • Universal frequency measuring input for AC 40 … 550 V
  • Several options for auxiliary supply
  • As option without aux. supply for voltage range AC 18 … 70 V or 70 … 275 V
  • LED indicators for auxiliary supply, input frequency, over and under frequency alarm
  • 2 possible contact arrangements
    MK 9143N and MK 9143N/600: 2 x 1 C/O contacts, width 22,5 mm
    MH 9143 and MH 9143/600: 2 x 2 C/O contacts, width 45 mm

Frequency Relay MH 9837

Advantages

  • Universal usage
  • Easy handling

Features

  • According to IEC/EN 60255-1
  • Detection of over- or underfrequency of alternating voltage (adjustable function) (detection of over- and underfrequency see datasheet MK 9837N/5_0)
  • Fast reaction time by measuring duration of cycle of input frequency
  • Universal measuring input for AC-voltages of 15 … 280 V as well as 30 … 550 V
  • As option with measuring input for inverters
  • 4 ranges adjustable response value 1,5 … 200 Hz or 5 … 600 Hz
  • Adjustable hysteresis
  • Adjustable start up time delay 0 … 50 s at function underfrequency
  • Adjustable monitoring time for missing input signal at function overfrequency
  • Response delay programmable via terminals 0 … 100 s
  • Alarm storing or auto-reset programmable via terminals
  • Galvanic separation between measuring input, auxiliary voltage and output contacts
  • MH 9837 available with wide input range for auxiliary supply (AC/DC 24 … 60 V or AC/DC 110 … 230 V)
  • 2 changeover contacts, closed circuit operation
  • Open circuit operation on request
  • LED indication for auxiliary voltage, measuring voltage and alarm status
  • MH 9837.12/008: With galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
  • Device available with 2 response values and seperately controlled outputrelays for under- and overfrequency see MK 9837N/500
  • 2 possible compact designs:
    MK 9837N: Width 22,5 mm
    MH 9837: Width 45 mm

Frequency Relay MH 9837/5_0

Advantages

  • Separate output signals for under and over frequency
  • Simple wiring
  • Easy handling

Features

  • According to IEC/EN 60255-1
  • Monitoring of AC voltage for under and overfrequency, can be used also for pre-warning (monitoring of AC voltage for under or overfrequency see datasheet MK 9837N)
  • Separate relay outputs for over- or underfrequency (1 or 2 changeover contacts each)
  • Alternative usage for monitoring of a frequency window
  • Separate adjustment of response value for over- or underfrequency at 4 ranges each, 1.5 … 200 Hz or 5 … 600 Hz
  • Second response value for prewarning possible
  • Fast reaction time by measuring duration of cycle of input frequency
  • Universal measuring input for AC-voltages of 15 … 280 V as well as 30 … 550 V
  • As option with measuring input for inverters
  • Programmable hysteresis of response value: 2 … 10 %
  • Start up time delay programmable via terminals from 0 … 50 s e.g. continuously
  • Manual or auto-reset programmable via terminals
  • Galvanic separation between measuring input, auxiliary voltage and output contacts
  • MH 9837/508: With galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
  • MH 9837/5_0: With wide input range for auxiliary voltage available (AC/DC 24 … 60 V or AC/DC 110 … 230 V)
  • Closed circuit operation (de-energized on trip)
  • LED indication for auxiliary voltage, measuring voltage and alarm status
  • Device available with 2 contacts
    MK 9837N/5_0: 2 x 1 changeover contact
    MH 9837/5_0: 2 x 2 changeover contacts or wide auxiliary voltage range
  • 2 possible compact designs:
    MK 9837N/5_0: Width 22,5 mm
    MH 9837/5_0: Width 45 mm

Phase indicator IK 9168

Features

  • According to IEC/EN 60 255, DIN VDE 0435-303
  • Indication of phase failure in 3-phase systems
  • Single phase connection possible
  • Independent of phase sequence
  • LED indicator for each phase
  • Devices available in 2 enclosure versions:
    IK 9168: depth 59 mm, with terminals at the bottom for
    installation systems and industrial distribution systems according to DIN 43 880
    SK 9168: depth 98 mm, with terminals at the top for cabinets
    with mounting plate and cable duct
  • Width 17.5 mm

Phase monitor IK 9169

Features

  • According to IEC/EN 60255-1
  • Detection of phase failure in 3-phase systems
  • Single phase connection possible
  • Closed circuit operation
  • Independent of phase sequence
  • LED indicator for each phase
  • Output 1 changeover contact
  • Devices available in 2 enclosure versions:
    – I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase Sequence Indicator IK 9178

Features

  • According to IEC/EN 60 255-1
  • Indication of phase sequence in 3-phase systems
  • Without auxiliary supply
  • LED indicator for phase sequence
  • Devices available in 2 enclosure versions:
    IK 9178: depth 59 mm, with terminals at the bottom for
    installation systems and industrial distribution
    systems according to DIN 43 880
    SK 9178: depth 98 mm, with terminals at the top for cabinets
    with mounting plate and cable duct
  • Width 17.5 mm

Phase Sequence Monitor (Phase Sequence Relay) IK 9179

Advantages

  • According to IEC/EN 60255-1
  • Detection of phase sequence in 3-phase systems
  • Without auxiliary voltage

Features

  • Closed circuit operation
  • LED indicator for phase sequence
  • Output 1 changeover contact
  • Devices available in 3 enclosure versions:
    – I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase monitor RK 9169

Features

  • According to IEC/EN 60255-1
  • Detection of phase failure in 3-phase systems
  • Single phase connection possible
  • Closed circuit operation
  • Independent of phase sequence
  • LED indicator for each phase
  • Output 1 changeover contact
  • Devices available in 2 enclosure versions:
    – I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase Sequence Monitor (Phase Sequence Relay) RK 9179

Advantages

  • According to IEC/EN 60255-1
  • Detection of phase sequence in 3-phase systems
  • Without auxiliary voltage

Features

  • Closed circuit operation
  • LED indicator for phase sequence
  • Output 1 changeover contact
  • Devices available in 3 enclosure versions:
    – I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase monitor RK 9872

Advantages

  • Reliability monitoring of 3- or 1-phase voltage systems on:
    – Undervoltage
    – Overvoltage
    – Phase sequence (at 3-phase voltage system)
  • Fast fault location
  • Preventive maintenance
  • Space saving

Features

  • According to IEC/EN 60255-1
  • Detection of under-/overvoltage and phase sequence in 3-phase voltage systems
  • Without separate auxiliary voltage
  • LED-Indication for operation voltage and contact position
  • De-energized on trip
  • With fixed response value for undervoltage
  • With fixed response value for overvoltage
  • Width: 17,5 mm

Phase indicator SK 9168

Features

  • According to IEC/EN 60 255, DIN VDE 0435-303
  • Indication of phase failure in 3-phase systems
  • Single phase connection possible
  • Independent of phase sequence
  • LED indicator for each phase
  • Devices available in 2 enclosure versions:
    IK 9168: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    SK 9168: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase monitor SK 9169

Features

  • According to IEC/EN 60255-1
  • Detection of phase failure in 3-phase systems
  • Single phase connection possible
  • Closed circuit operation
  • Independent of phase sequence
  • LED indicator for each phase
  • Output 1 changeover contact
  • Devices available in 2 enclosure versions:
    – I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase Sequence Indicator SK 9178

Features

  • According to IEC/EN 60 255-1
  • Indication of phase sequence in 3-phase systems
  • Without auxiliary supply
  • LED indicator for phase sequence
  • Devices available in 2 enclosure versions:
    IK 9178: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    SK 9178: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Phase Sequence Monitor (Phase Sequence Relay) SK 9179

Advantages

  • According to IEC/EN 60255-1
  • Detection of phase sequence in 3-phase systems
  • Without auxiliary voltage

Features

  • Closed circuit operation
  • LED indicator for phase sequence
  • Output 1 changeover contact
  • Devices available in 3 enclosure versions:
    – I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    – S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width 17.5 mm

Asymmetry Relay MK 9040N

Advantages

  • Correct direction of rotation of drives
  • Simple wiring

Features

  • According to IEC/EN 60255-1
  • Recognition of
    – Voltage asymmetry
    – Phase failure
    – Voltage feedback
    – Optionally with phase sequence recognition
  • Optionally with adjustable response delay
  • 2 LED displays for power supply and state of contact
  • Wire connection: Also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46228-1/-2/-3/-4
  • As option with pluggable terminal blocks for easy exchange of devices
    – With screw terminals
    – Or with cage clamp terminals
  • Width 22.5 mm

Phase Sequence Relay MK 9056N

Advantages

  • Correct sense of rotation of motors
  • Simple wiring
  • 2 Changeover contacts

Features

  • According to IEC/EN 60255-1
  • Detection of wrong phase sequence
  • LED indication of rotation
  • Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46228-1/-2/-3/-4
  • As option with pluggable terminal blocks for easy exchange of devices
    – With screw terminals
    – Or with cage clamp terminals
  • Width 22.5 mm

Phase sequence relay MK 9059

Advantages

  • Detection of wrong phase sequence
  • Detection of phase failure (with N-connection)

Features

  • According to IEC/EN 60255-1, DIN VDE 0435-303
  • Suitable for voltage systems with:
    – 3 AC 100 … 750 V
    – 15 … 150 Hz
  • With auxiliary voltage
  • With 1 changeover contact
  • Width 22.5 mm

Trip circuit monitor UG 5124

Advantages

  • Wide auxiliary voltage range DC 20 … 265 V
  • Limiting of the power consumption at measuring circuit by a voltage independent constant current source
  • On delay- / release delay each adjustable

Features

  • According to IEC/EN 60 255-1
  • Monitors continuously breaker trip circuits
  • 2 changeover contacts
  • Galvanic separated electronic
  • De-energized on trip
  • With pluggable terminal blocks for easy exchange of devices
  • Terminal blocks coded
  • Width 22,5 mm

Fuse monitor UG 9075

Advantages

  • increasing the availability of plants by early detection of blown fuses, that may cause damage if undetected
  • fast detection of blown fuses also with disconnected load availability of your plant on request
  • reliable detection of blown fuses inspite of:
    – Asymmetric mains
    – Harmonic content

Features

  • According to IEC/EN 60 255, DIN VDE 0435-303
  • To monitor fuses in single and 3-phase AC voltage systems
  • Undervoltage detection below 0.7 x UN
  • No separate auxiliary necessary
  • 2 changeover contacts
  • 2 nominal voltages adjustable:
    3/N AC 240 V / 140 V or 3/N AC400 V / 230 V or fixed nominal voltage: 3/N AC 110 V / 64 V
  • Adjustable operate delay
  • Energized on trip
  • Automatic adjustment to 50 Hz and 60 Hz mains frequency
  • Width 22.5 mm

Phase Failure Relay, With Time Delay IL 5201/20006

Features

  • According to IEC/EN 60255-1
  • Monitoring of phase failure in 3-phase voltage systems
  • 4 time ranges 0.25 … 640 min adjustable
  • Auxiliary supply DC 48 V
  • Independent of phase sequence
  • Single phase connection possible
  • De-energized on trip
  • LED indicator for each phase and state of output contacts
  • Output 1 changeover contact
  • Width 35 mm

Phase Sequence Module IL 9059

Advantages

  • Protects mobile equipment against damage or destruction coming from wrong phase sequence
  • OA 9059: Reduced wiring by mounting directly in the motor connection box

Features

  • According to IEC/EN 60255-1
  • Detection of incorrect phase sequence
  • No separately auxiliary voltage necessary
  • Nominal voltage range 3 AC 380 … 690 V
  • Suitable for operation with inverters (f = 40 … 80 Hz)
  • Relay output:
    – IL/SL 9059: 1 changeover contact
    – OA 9059: 1 NC contact
  • Extended temperature range
  • Devices available in 3 enclosure versions:
    IL 9059: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    SL 9059: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • OA 9059: Sealed modul with stranded wire connection suitable for mounting in terminal box
  • Width
    – IL/SL 9059: 35 mm
    – OA 9059: 62 mm
 

Neutral Monitor IL 9069

Features

  • According to IEC/EN 60255-1
  • Detection of
    – missing neutral in the system
    – broken neutral on IL/SL 9069
    – neutral exchanged against phase
  • Detection of phase failure also with disconnected load
  • For 3-phase systems
  • De-energized on trip
  • LED indicator for operation/state of output contacts
  • Single phase connection possible
  • Without auxiliary voltage
  • 2 cangeover contacts
  • Optionally with adjustable asymmetry detection and on delay
  • Devices available in 2 enclosure version:
    IL 9069: depth 59 mm with terminals at the bottom for installations
    systems and industrial distribution systems according to DIN 43880
  • SL 9069: depth 98 mm with terminals at the top for cabinets with
    mounting plate and cable duct
  • Width 35 mm

Fuse Monitor IL 9075

Advantages

  • Increased system availability through early detection of fuse failures, which can cause considerable damage to systems
  • Rapid detection of fuse failures, even when consumers are switched off, ensures system availability at the earliest possible point in time
  • Reliable detection of fuse failure, even with an unbalanced or harmonic network and with regenerative motors

Features

  • According to IEC/EN 60255-1
  • Recognizes fuse failures in three-phase mains up to 3 AC 690 V
  • Can be used for all types and sizes of fuses
  • Independent of phase sequence
  • Shorter response time than with motor circuit-breakers
  • As option:
    – Energized on trip (output relay activated in the event of a fault)
    – De-energized on trip (output relay not activated in the event of a fault) with IP 9075 programmable via X4-X5 or X3-X4
  • As option with manual reset function and remote reset, programmable via X1-X2
  • 2 LED indicators
  • As option: 1 NO contact or 2 changeover contacts
  • Devices available in 2 enclosure versions:
    I-model: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    S-model: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • IL 9075, SL 9075: Width 35 mm
    IP 9075, SP 9075: Width 70 mm

Undervoltage Relay, 3-Phase With Test Key IL 9176

Advantages

  • Preventive maintenance
  • For better productivity
  • Quicker fault locating

Features

  • According to IEC/EN 60255-1
  • Detection of
    – Undervoltage 1 up to 3-phase, 0.85 x UN
    – Phase failure
  • Without auxiliary voltage
  • De-energized on trip
  • LED indicator for L1, L2, L3 with test key to simulate failure
  • 2 changeover contacts
  • Width 35 mm

Fuse Monitor RL 9075

Advantages

  • Increasing the availability of plants by early detection of blown fuses, that may cause damage if undetected
  • Fast detection of blown fuses also with disconnected load availability of your plant on request
  • Reliable detection of blown fuses inspite of:
    – asymmetric mains
    – harmonic content

Features

  • According to IEC/EN 60255-1
  • To monitor fuses in single and 3-phase AC voltage systems with neutral
  • Adjustable operating voltages: 400 V / 230 V and 230 V / 130 V and 110 V / 64V
  • Undervoltage detection below 0.8 x UB
  • Fast detection of a blown fuse
  • No separate auxiliary necessary
  • Output: 1 changeover contact
  • De-energized on trip
  • Adjustable switching delay
  • Width:
    – RL 9075: 35 mm
    – RN 9075: 52.5 mm

Phase-sequence relay SL 9059

Advantages

  • Protects mobile equipment against damage or destruction coming from wrong phase sequence
  • OA 9059: Reduced wiring by mounting directly in the motor connection box

Features

  • According to IEC/EN 60255-1
  • Detection of incorrect phase sequence
  • No separately auxiliary voltage necessary
  • Nominal voltage range 3 AC 380 … 690 V
  • Suitable for operation with inverters (f = 40 … 80 Hz)
  • Relay output:
    – IL/SL 9059: 1 changeover contact
    – OA 9059: 1 NC contact
  • Extended temperature range
  • Devices available in 3 enclosure versions:
    IL 9059: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    SL 9059: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • OA 9059: Sealed modul with stranded wire connection suitable for mounting in terminal box
  • Width
    – IL/SL 9059: 35 mm
    – OA 9059: 62 mm

Neutral Monitor SL 9069

Features

  • According to IEC/EN 60255-1
  • Detection of
    – missing neutral in the system
    – broken neutral on IL/SL 9069
    – neutral exchanged against phase
  • Detection of phase failure also with disconnected load
  • For 3-phase systems
  • De-energized on trip
  • LED indicator for operation/state of output contacts
  • Single phase connection possible
  • Without auxiliary voltage
  • 2 cangeover contacts
  • Optionally with adjustable asymmetry detection and on delay
  • Devices available in 2 enclosure version:
    IL 9069: depth 59 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43880
    SL 9069: depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct
  • Width 35 mm

Fuse Monitor SL 9075

Advantages

  • Increased system availability through early detection of fuse failures, which can cause considerable damage to systems
  • Rapid detection of fuse failures, even when consumers are switched off, ensures system availability at the earliest possible point in time
  • Reliable detection of fuse failure, even with an unbalanced or harmonic network and with regenerative motors

Features

  • According to IEC/EN 60255-1
  • Recognizes fuse failures in three-phase mains up to 3 AC 690 V
  • Can be used for all types and sizes of fuses
  • Independent of phase sequence
  • Shorter response time than with motor circuit-breakers
  • As option:
    – Energized on trip (output relay activated in the event of a fault)
    – De-energized on trip (output relay not activated in the event of a fault) with IP 9075 programmable via X4-X5 or X3-X4
  • As option with manual reset function and remote reset, programmable via X1-X2
  • 2 LED indicators
  • As option: 1 NO contact or 2 changeover contacts
  • Devices available in 2 enclosure versions:
    I-model: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    S-model: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • IL 9075, SL 9075: Width 35 mm
    IP 9075, SP 9075: Width 70 mm

Asymmetry Relay BA 9040

Features

  • According to IEC/EN 60255-1
  • Recognition of
    – Voltage asymmetry
    – Phase failure
    – Voltage feedback
    – Optionally with phase sequence recognition
  • Optionally with adjustable response delay
  • 2 LED displays for power supply and state of contact
  • Wire connection: Also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46228-1/-2/-3/-4
  • Width: 45 mm

Phase-sequence relay BA 9041

Advantages

  • Correct sense of rotation of motors
  • Simple wiring

Features

  • According to IEC/EN 60255-1
  • Detection of wrong phase sequence
  • With 2 changeover contacts
  • Width: 45 mm

Phase monitor MH 9352/001

Advantages

  • Space and cost saving due to 3 devices in one housing
  • Easy fault diagnostics by 3 separate DEL
    – Overvoltage
    – Undervoltage
    – Phase sequence and power failure
  • Differentiated error transfer to PLC possible, e.g. for logging of error type and time
  • Large measuring range 3 AC 85 … 550 V by built-in power supply with wide voltage range

Features

  • Acc. to IEC/EN 60255-1
  • 3 phases mains monitoring on
    – Overvoltage
    – Undervoltage
    – Phase sequence and voltage failure
  • 3 separate output relais with 1 changeover contact each
  • Without N connection
  • Closed circuit operation
  • As option with different connection blocks
    – With fixed screw terminals
    – With plug-in screw terminals
    – With plug-in cage-clamp terminals
  • Width: 45 mm

Phase Monitor MH 9352/003

Advantages

  • Most effective adaption to the application by 2 separated time delay functions for response value and reset value
  • Universal usage by selection of nominal voltage (4 steps)
  • Always the right unit in stock

Features

  • According to IEC/EN 60255-1
  • 3-phase voltage measurement for 3-phase 4wire systems
  • Adjustable voltage AC 380, 400, 415, 440 V
  • Phase sequence detection
  • Adjustable response value for undervoltage and adjustable hysteresis
  • Adjustable delay for undervoltage detection
  • Without auxiliary voltage
  • Width: 45 mm

Fuse Monitor RN 9075

Advantages

  • Increasing the availability of plants by early detection of blown fuses, that may cause damage if undetected
  • Fast detection of blown fuses also with disconnected load availability of your plant on request
  • Reliable detection of blown fuses inspite of:
    – asymmetric mains
    – harmonic content

Features

  • According to IEC/EN 60255-1
  • To monitor fuses in single and 3-phase AC voltage systems with neutral
  • Adjustable operating voltages: 400 V / 230 V and 230 V / 130 V and 110 V / 64V
  • Undervoltage detection below 0.8 x UB
  • Fast detection of a blown fuse
  • No separate auxiliary necessary
  • Output: 1 changeover contact
  • De-energized on trip
  • Adjustable switching delay
  • Width:
    – RL 9075: 35 mm
    – RN 9075: 52.5 mm

Phase Sequence Module OA 9059

Advantages

  • Protects mobile equipment against damage or destruction coming from wrong phase sequence
  • OA 9059: Reduced wiring by mounting directly in the motor connection box

Features

  • According to IEC/EN 60255-1
  • Detection of incorrect phase sequence
  • No separately auxiliary voltage necessary
  • Nominal voltage range 3 AC 380 … 690 V
  • Suitable for operation with inverters (f = 40 … 80 Hz)
  • Relay output:
    – IL/SL 9059: 1 changeover contact
    – OA 9059: 1 NC contact
  • Extended temperature range
  • Devices available in 3 enclosure versions:
    IL 9059: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    SL 9059: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • OA 9059: Sealed modul with stranded wire connection suitable for mounting in terminal box
  • Width
    – IL/SL 9059: 35 mm
    – OA 9059: 62 m

Fuse Monitor IP 9075

Advantages

  • Increased system availability through early detection of fuse failures, which can cause considerable damage to systems
  • Rapid detection of fuse failures, even when consumers are switched off, ensures system availability at the earliest possible point in time
  • Reliable detection of fuse failure, even with an unbalanced or harmonic network and with regenerative motors

Features

  • According to IEC/EN 60255-1
  • Recognizes fuse failures in three-phase mains up to 3 AC 690 V
  • Can be used for all types and sizes of fuses
  • Independent of phase sequence
  • Shorter response time than with motor circuit-breakers
  • As option:
    – Energized on trip (output relay activated in the event of a fault)
    – De-energized on trip (output relay not activated in the event of a fault) with IP 9075 programmable via X4-X5 or X3-X4
  • As option with manual reset function and remote reset, programmable via X1-X2
  • 2 LED indicators
  • As option: 1 NO contact or 2 changeover contacts
  • Devices available in 2 enclosure versions:
    I-model: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    S-model: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • IL 9075, SL 9075: Width 35 mm
    IP 9075, SP 9075: Width 70 mm

Fuse Monitor SP 9075

Advantages

  • Increased system availability through early detection of fuse failures, which can cause considerable damage to systems
  • Rapid detection of fuse failures, even when consumers are switched off, ensures system availability at the earliest possible point in time
  • Reliable detection of fuse failure, even with an unbalanced or harmonic network and with regenerative motors

Features

  • According to IEC/EN 60255-1
  • Recognizes fuse failures in three-phase mains up to 3 AC 690 V
  • Can be used for all types and sizes of fuses
  • Independent of phase sequence
  • Shorter response time than with motor circuit-breakers
  • As option:
    – Energized on trip (output relay activated in the event of a fault)
    – De-energized on trip (output relay not activated in the event of a fault) with IP 9075 programmable via X4-X5 or X3-X4
  • As option with manual reset function and remote reset, programmable via X1-X2
  • 2 LED indicators
  • As option: 1 NO contact or 2 changeover contacts
  • Devices available in 2 enclosure versions:
    I-model: Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43880
    S-model: Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • IL 9075, SL 9075: Width 35 mm
    IP 9075, SP 9075: Width 70 mm

Asymmetry Relay AK 9840

Features

  • According to IEC/EN 60255-1
  • For nominal voltages from 3 AC 110 up to 690 V
  • Detection of
    – Voltage asymmetry
    – Incorrect phase sequence
    – Phase failure
    – Undervoltage
  • Voltage feedback recognition
  • Also suitable for harmonic industrial mains
  • Closed circuit operation
  • Contact position indication
  • With adjustable delay
  • 2 C/O contacts
  • Width: 75 mm

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