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DOLD SK 9272 – Overcurrent Relay

DOLD SK 9272 – Overcurrent Relay

10 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 SL 5880 – Insulation monitor

DOLD SL 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 SL 5881 – Insulation monitor

DOLD SL 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 SL 5882 – Residual current monitor, Type A

DOLD SL 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