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Measuring relays / Monitoring relays

197 products
Accessories for measuring relays3 productsMeasuring 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
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Showing 73–96 of 197 results

DOLD IP 9075 – Fuse Monitor

DOLD IP 9075 – Fuse Monitor

70 mm

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
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DOLD LG 5130 – Noise filter

DOLD LG 5130 – Noise filter

22.5 mm

Noise filter

  • Reliable operation of measuring relays and other low consumption loads in systems with high frequency noise
  • Protection of measuring inputs / measuring relays by reduction of noise
  • More precise and constant measuring results
  • Increasing the availability of plants
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DOLD MH 9055 – Speed Monitor

DOLD MH 9055 – Speed Monitor

45 mm

Speed Monitor

  • Protection of machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
  • With fast reaction at low speed
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DOLD MH 9055/5__ – Speed monitor

DOLD MH 9055/5__ – Speed monitor

45 mm

Speed monitor

  • Protection of machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
  • With fast reaction at low speed
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DOLD MH 9143 – Mains Frequency Monitor

DOLD MH 9143 – Mains Frequency Monitor

45 mm

Mains Frequency Monitor

  • 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)
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DOLD MH 9300 – Multifunction measuring relay

DOLD MH 9300 – Multifunction measuring relay

45 mm

Multifunction measuring relay

  • Min-, Max. value or window monitoring
  • Simultaneous monitoring of up to 9 different parameters
  • Simple configuration and fault diagnostic
  • Different fault indications
  • Large measuring range 3 AC 24 … 690 V
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DOLD MH 9352/001 – Phase monitor

DOLD MH 9352/001 – Phase monitor

45 mm

Phase monitor

  • 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
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DOLD MH 9352/003 – Phase Monitor

DOLD MH 9352/003 – Phase Monitor

45 mm

Phase Monitor

  • 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
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DOLD MH 9398 – Active power transducer

DOLD MH 9398 – Active power transducer

45 mm

Active power transducer

  • Universal use because of relay- and analogue outputs
  • Reliability overload detection by active power measuring
  • To extend the life of your electric drives
  • Preventive maintenance
  • Quicker fault locating
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DOLD MK 5130N – Noise filter

DOLD MK 5130N – Noise filter

22.5 mm

Noise filter

  • Reliable operation of measuring relays and other low consumption loads in systems with high frequency noise
  • Protection of measuring inputs / measuring relays by reduction of noise
  • More precise and constant measuring results
  • Increasing the availability of plants
Read more