E. Dold & Söhne GmbH & Co. KG

Tel.: +49 7723 654-0
E-Mail: dold-relays@dold.com

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Tel.: +49 7723 654-454
E-Mail: ab@dold.com

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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

Width: 35 mm
Operate delay: Yes
1- / 3-phase: 1, 3
Nominal voltage max.: 3/N AC 500/290 V
Auxiliary voltage: Without
Output contacts: 2 C/O contacts
Enclosure design: Switch cabinet
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