The Siemens 3RR2242-2FA30 is a Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.Cable...
The Siemens 3RR2242-1FW30 is a Monitoring relay, can be mounted to Contactor 3RT2.2-phase Supply 24-240 V AC/DC 1 change-over contact Monitoring for Current overshoot and undershoot Phase failure.C...