E. Dold & Söhne GmbH & Co. KG

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

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Direct contact for orders

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

Direct contact for technical questions

Tel.: +49 7723 654-459
E-Mail: rv@dold.com

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Tel.: +49 7723 654-455
SP 9278CT

Current Asymmetry Relay

SP 9278CT

Contacts

Auxiliary voltage

Measuring range

Time delay

Variant

  • 0059150
  • SP9278.12CT AC220-240V AC4-50A
Monitoring of current asymmetry in 3-phase systems e.g. monitoring of heating elements, heating... more

Product description

Monitoring of current asymmetry in 3-phase systems e.g. monitoring of heating elements, heating and load circuits.

Technical specifications

Width: 70 mm
1- / 3-phase: 3
Measuring range: AC 4 - 100 A
Auxiliary voltage: AC, AC/DC
Operate delay: Yes
Output contacts: 2 C/O contacts
Enclosure design: Switch cabinet
Type: SP 9278CT

Features

  • According to IEC/EN 60255-1
  • IP 9278, SP 9278: 3-phase
  • Measuring range IP 9278, SP 9278: up to 15 A
    SP 9278CT: up to 100 A
  • 2 changeover contacts
  • Adjustable asymmetry
  • Settable time delay
  • Open circuit operation
  • LED indicators
  • With auxiliary voltage
  • Auxiliary supply and measuring input galvanic separated
  • As option with external remote reset
  • Width 70 mm