The system monitoring solid state relay (sense relay) provides an alarm output in the event of a circuit failure. Internal circuits monitor:

– line voltage/line current

– correct functioning of the SSR

– SSR input status

The relay is designed for applications where immediate fault detection is required. A red LED indicates an alarm, a green LED indicates DC control supply OK (half LED light intensity) resp. relay switched ON (full LED light intensity).

Features

• System (line and load) monitoring relay

• Zero switching

• Rated operational current: 25, 50 and 110 AACrms

• Rated operational voltage: 120, 230, 400 and 480 VACrms

• High surge current capability

• Alarm output signal

• LED indication for alarm and supply