Current Asymmetry Relay
SP 9278

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

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

Technical specifications
Width: 70mm
Operate delay: Yes
Enclosure design: Switch cabinet
1- / 3-phase: 3
Output contacts: 2 C/O contacts
Auxiliary voltage: AC/DC
Type: SP 9278
Measuring range: AC 1 - 15A


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: SP9278.12 AC/DC24V AC1-15A
Art. No.: 0062882