Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
SL 9277

Over- and Undercurrent Relay

SL 9277

Contacts

Auxiliary voltage

Measuring range

Switching delay

Variant

  • 0050637
  • SL9277.12 AC/DC24V 0,1-15A
Over- and undercurrent detection in single phase or 3-phase voltage systems For industrial... more

Product description

  • Over- and undercurrent detection in single phase or 3-phase voltage systems
  • For industrial and railway applications

Technical specifications

Width: 35 mm
1- / 3-phase: 1
Measuring range: AC 0,1 - 15 A
Auxiliary voltage: AC, AC/DC
Operate delay: Yes
Output contacts: 2 Wechsler
Enclosure design: Switch cabinet
Type: SL 9277

Features

  • According to IEC/EN 60 255-1
  • IP 9277, SP 9277, SP 9277CT: 3-phase
    IL 9277, SL 9277, SL 9277CT: singele phase
  • Detects over- and undercurrent
  • Measuring ranges from 0.1 ... 15 A
  • With built in current transformer for 0.5 ... 100 A
  • IL 9277, SL 9277 with 4 programmable ranges
  • Settable 0.1 ... 1 IN
  • Separate setting for over- and undercurrent
  • Fixed hysteresis approx. 4 %
  • Settable time delay
  • IP 9277, SP 9277 with separate settable time delay for over- and undercurrent
  • De-energized on trip
  • LED indicators for over-, under- and normal current
  • Auxiliary supply and measuring input galvanic separated
  • IL 9277, SL 9277 with one output relay for over- and undercurrent
  • IP 9277, SP 9277 with separate output relays for over- and undercurrent
  • Optionally energized on trip
  • Devices available in 2 enclosure versions:
    - I-model, e.g. IL _ _ _ _, depth 61 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880
    - S-model, e.g. SL _ _ _ _, depth 100 mm with terminals at the top for cabinets with mounting plate and cable duct
  • DIN rail or screw mounting
  • Width IL 9277, SL 9277, SL 9277CT: 35 mm
    IP 9277, SP 9277, SP 9277CT: 70 mm