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Monitoring devices

273 products

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DOLD IK 9272 – Overcurrent Relay

DOLD IK 9272 – Overcurrent Relay

17.5 mm

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 IL 5880 – Insulation monitor

DOLD IL 5880 – Insulation monitor

35 mm

Insulation monitor

  • Preventive fire and system protection
  • For single and 3-phase AC-systems up to 0 … 500 V and 10 … 10000 Hz
  • Monitors also disconnected voltage systems
  • Easy adjustment of response values
DOLD IL 5881 – Insulation monitor

DOLD IL 5881 – Insulation monitor

35 mm

Insulation monitor

  • Preventive fire and system protection
  • For DC voltage systems up to 12 … 280 V
  • Wide voltage range of measuring input UN DC 12 … 280 V (on request DC 24 … 500 V with separate auxiliary supply, Measuring range 20 … 500 kΩ)
  • Easy adjustment of response value
  • Selective ground fault indication for L+ and L- allows fast fault finding
DOLD IL 5882 – Residual current monitor, Type A

DOLD IL 5882 – Residual current monitor, Type A

35 mm

Residual current monitor, Type A

  • Preventive fire and system protection
  • Increasing the availability of plants by early fault detection
  • With external residual current transformer
  • Protection against manipulation by sealable transparent cover over setting switches
DOLD IL 9055 – Speed Monitor

DOLD IL 9055 – Speed Monitor

35 mm

Speed Monitor

  • Protection of persons, machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
DOLD IL 9069 – Neutral Monitor

DOLD IL 9069 – Neutral Monitor

35 mm

Neutral Monitor

  • Protects systems from damage caused by excessively high or low voltages with unbalanced loads
  • Preventive maintenance
  • For better productivity