Power Automation Sweden AB

Cylindervägen 8
13152 Nacka Strand
Sweden
SL 9071

Undervoltage Relay

SL 9071

Contacts

Nominal voltage

Response value

Variant

  • 0050044
  • SL9071.12 3/N AC400/230V 0,7UN4%
Monitoring of three-phase voltage systems to identify undervoltage, asymmetry or phase failure... more

Product description

Monitoring of three-phase voltage systems to identify undervoltage, asymmetry or phase failure and switching-on of safety lighting in accordance with DIN VDE 0108.

Technical specifications

Enclosure design: Switch cabinet
Width: 35 mm
Operate delay: +
1- / 3-phase: 3
Output contacts: 2 Wechsler
Measuring range max.: AC 440 V
Type: SL 9071

Features

  • According to IEC/EN 60 255-1
  • Identification of
    - undervoltage
    - phase failure
    - asymmetry also with reverse voltage
    - missing neutral in the system
    - broken neutral on IL/SL 9071
    - neutral exchanged against phase
  • Single phase connection possible
  • According to DIN VDE 0100-710 (for rooms used for medical purposes) as an option
  • Fixed setting value (variable as an option)
  • De-energized on trip
  • LED indicator
  • With safe disconnection according to IEC/EN 61 140, IEC/EN 60 947-1 between the Measuring Circuit and the contacts
  • Independant of phase sequence
  • 2 changeover contacts
  • Devices available in 2 enclosure version:
    IL 9071: depth 61 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880
    SL 9071: depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct
  • Width 35 mm