Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
SK 9171

Undervoltage Relay, 3-phase

SK 9171

Contacts

Nominal voltage

Time delay

Response value

Variant

  • 0054744
  • SK9171.11/200 3/N AC400/230V 0,85UN
Monitoring of voltage systems on undervoltage. Automatic switching to emergency supply or of... more

Product description

Monitoring of voltage systems on undervoltage. Automatic switching to emergency supply or of emergency light in the case of phase loss according to DIN VDE 0100-710 or DIN VDE 0108.

Technical specifications

Enclosure design: Switch cabinet
Width: 17,5 mm
Operate delay: +
1- / 3-phase: 3
Output contacts: 1 Wechsler
Measuring range max.: AC 500 V
Type: SK 9171

Features

  • According to IEC/EN 60255-1
  • Monitoring of undervoltage in 3-phase system
  • Also for single phase
  • Without auxiliary supply
  • Optionally for 3p3w systems
  • LED indicator for state of output relay
  • Independent of phase sequence
  • 1 or 2 changeover contacts
  • Optionally fixed or settable response value
  • As option with phase sequence detection
  • Optionally with or without N
  • Optionally with off-delay t1
  • Opionally with on delay t2
  • Devices available in 2 enclosure versions:
    I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct
  • Width:
    IK 9171, SK 9171: 17.5 mm
    IL 9171, SL 9171: 35 mm