Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
SL 9065CT

Underload monitor (Cos-phi monitor)

SL 9065CT

Contacts

Nominal voltage

Current range

Response delay

Variant

  • 0059410
  • SL9065.11CT/100 3AC400V 5-100A
The underload monitor IK/SK/SL 9065 measures the phase shift between voltage and current. The... more

Product description

The underload monitor IK/SK/SL 9065 measures the phase shift between voltage and current. The phase angle changes with changing load. This measuring method is suitable to monitor asynchronous motors on underload and no load independent of motor size.

Technical specifications

Enclosure design: Switch cabinet
Width: 35 mm
Operate delay: +
1- / 3-phase: 1, 3
Output contacts: 1 Wechsler
Measuring range max.: 100 A
Type: SL 9065CT

Features

  • According to EN 60 255-1
  • Detection of underload (cos ϕ)
  • Without auxiliary supply
  • Current up to 8 A
    Motors up to 5 A nominal current can be connected directly
  • Higher currents via current transformer
  • SL 9065CT with integrated current transformer for currents up to 100 A
  • Adjustable response value
  • Automatic reset (Alarm auto reset)
  • Adjustable operate delay up to 100 s
  • De-energized on trip
  • For single and 3-phase loads e.g. motors
  • Independent of phase sequence
  • 1 changeover contact
  • LED indicator voltage supply and alarm
  • Devices available in 2 enclosure versions:
    IK 9065: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880
    SK 9065, SL 9065CT: depth 98 mm, with terminals at the top for
    cabinets with mounting plate and cable duct
  • IK 9065, SK 9065 width 17.5 mm
    SL 9065CT width 35 mm
    IK/SK 9065/100: as IK/SK 9065 but:
  • programmable for
    - automatic reset or manual reset (latched alarm)
    - energized or de-energized on trip
  • with reset button
  • remote reset