DOLD SL 9151 – Level Sensing Relay
Level Sensing Relay
- 3 probe connections for 2-point and 1-point level control
- Large setting range: 2 … 450 kΩ
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DOLD SL 9163 – Thermistor Motor Protection Relay
Thermistor Motor Protection Relay
DOLD SL 9171 – Undervoltage Relay
Undervoltage Relay
DOLD SL 9270 – Overcurrent Relay
Overcurrent Relay
DOLD SL 9270CT – Overcurrent Relay
Overcurrent Relay
DOLD SL 9271 – Undercurrent Relay
Undercurrent Relay
DOLD SL 9271CT – Undercurrent Relay
Undercurrent Relay
DOLD SL 9277 – Over- and Undercurrent Relay
Over- and Undercurrent Relay
- Detects over- and undercurrent
- With built in current transformer for 0.5 … 100 A
- IL 9277, SL 9277 with 4 programmable ranges
- Separate setting for over- and undercurrent
- Settable time delay
DOLD SL 9277CT – Over- and Undercurrent Relay
Over- and Undercurrent Relay
- Detects over- and undercurrent
- With built in current transformer for 0.5 … 100 A
- IL 9277, SL 9277 with 4 programmable ranges
- Separate setting for over- and undercurrent
- Settable time delay
DOLD SL 9837 – Frequency Relay
Frequency Relay
DOLD SP 9075 – Fuse Monitor
Fuse Monitor
- 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
DOLD SP 9077 – Over- and undervoltage relay
Over- and undervoltage relay
- Preventive maintenance
- For better productivity
DOLD SP 9270 – Overcurrent Relay
Overcurrent Relay
DOLD SP 9270CT – Overcurrent Relay
Overcurrent Relay
DOLD SP 9271 – Undercurrent Relay
Undercurrent Relay
DOLD SP 9271CT – Undercurrent Relay
Undercurrent Relay
DOLD SP 9277 – Over- and Undercurrent Relay
Over- and Undercurrent Relay
- Detects over- and undercurrent
- With built in current transformer for 0.5 … 100 A
- IL 9277, SL 9277 with 4 programmable ranges
- Separate setting for over- and undercurrent
- Settable time delay
DOLD SP 9277CT – Over- and Undercurrent Relay
Over- and Undercurrent Relay
- Detects over- and undercurrent
- With built in current transformer for 0.5 … 100 A
- IL 9277, SL 9277 with 4 programmable ranges
- Separate setting for over- and undercurrent
- Settable time delay
DOLD SP 9278 – Current Asymmetry Relay
Current Asymmetry Relay
- Preventive maintenance
- For better productivity
- Quicker fault locating
- Auxiliary supply and measuring input galvanic separated
- With integrated current transformer
DOLD SP 9278CT – Current Asymmetry Relay
Current Asymmetry Relay
- Preventive maintenance
- For better productivity
- Quicker fault locating
- Auxiliary supply and measuring input galvanic separated
- With integrated current transformer
DOLD UG 5124 – Trip circuit monitor
Trip circuit monitor
- 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
DOLD UG 9075 – Fuse monitor
Fuse monitor
- 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
DOLD UG 9146 – Sensorless Standstill Monitor
Sensorless Standstill Monitor
- Fast reaction time
- Easy to retrofit
- No external sensors necessary
DOLD UG 9400 – Multifunction measuring relay, for Modbus
Multifunction measuring relay, for Modbus
- Simple parameterization, monitoring and diagnosis
- Compact design
- Simultaneous monitoring of up to 9 measured variables
- Large measuring range 3 AC 24 … 690 V
- Min-, Max-value or window monitoring