DOLD SK 9143 – Frequency Relay
Frequency Relay
- Easy setting
- Without auxiliary voltage
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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 SK 9169 – Phase monitor
Phase monitor
DOLD SK 9170 – Overvoltage Relay, 3-phase
Overvoltage Relay, 3-phase
DOLD SK 9171 – Undervoltage Relay, 3-phase
Undervoltage Relay, 3-phase
DOLD SK 9172 – Overvoltage Relay, Single Phase
Overvoltage Relay, Single Phase
DOLD SK 9173 – Undervoltage Relay, Single-Phase
Undervoltage Relay, Single-Phase
- Preventive maintenance
- For better productivity
DOLD SK 9179 – Phase Sequence Monitor (Phase Sequence Relay)
Phase Sequence Monitor (Phase Sequence Relay)
- According to IEC/EN 60255-1
- Detection of phase sequence in 3-phase systems
- Without auxiliary voltage
DOLD SK 9270 – Overcurrent Relay
Overcurrent Relay
DOLD SK 9271 – Undercurrent Relay
Undercurrent Relay
DOLD SK 9272 – Overcurrent Relay
Overcurrent Relay
- Adjustable switching delay
- Closed circuit operation (output relay not activated in case of error)
- Optionally open circuit operation (output relay activated in case of error)
- Optionally manual reset, reset button on the front
DOLD SK 9273 – Undercurrent Relay
Undercurrent Relay
DOLD SL 5201/20007CT – Overcurrent Relay
Overcurrent Relay
DOLD SL 9059 – Phase-sequence relay
Phase-sequence relay
- Protects mobile equipment against damage or destruction coming from wrong phase sequence
DOLD SL 9065CT – Underload monitor (Cos-phi monitor)
Underload monitor (Cos-phi monitor)
DOLD SL 9069 – Neutral Monitor
Neutral Monitor
- Protects systems from damage caused by excessively high or low voltages with unbalanced loads
- Preventive maintenance
- For better productivity
DOLD SL 9070 – Overvoltage Relay
Overvoltage Relay
DOLD SL 9071 – Undervoltage Relay
Undervoltage Relay
- Preventive maintenance
- For better productivity
DOLD SL 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 SL 9077 – Over- and undervoltage relay
Over- and undervoltage relay
- Preventive maintenance
- For better productivity
DOLD SL 9077/800 – Over- and undervoltage relay
Over- and undervoltage relay
- Preventive maintenance
- For better productivity
DOLD SL 9079 – Short-time Voltage Drop Relay
Short-time Voltage Drop Relay
- Preventive maintenance
- For better productivity
DOLD SL 9086 – Phase monitor with thermistor motor protection
Phase monitor with thermistor motor protection
DOLD SL 9087 – Phase monitor
Phase monitor
DOLD SL 9094 – Temperature Monitoring Relay
Temperature Monitoring Relay
- Preventive maintenance
- For better productivity
- Quicker fault locating