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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Measuring relays / Monitoring relays
197 productsAccessories for measuring relays3 products
Measuring relays for current monitoring42 products
Measuring relays for load monitoring11 products
Measuring relays for main monitoring46 products
Measuring relays for monitoring physical values30 products
Measuring relays for power generation systems4 products
Measuring relays for voltage monitoring40 products
Multifunctional measuring relays20 products
Measuring relays for current monitoring42 productsMeasuring relays for load monitoring11 productsMeasuring relays for main monitoring46 productsMeasuring relays for monitoring physical values30 productsMeasuring relays for power generation systems4 productsMeasuring relays for voltage monitoring40 productsMultifunctional measuring relays20 products
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