The Siemens Monitoring relay can be mounted to contactor 3RT2, Size S2 standard, analog adjustable Apparent current monitoring 8 to 80 A at 50 to 60 Hz, 2-phase current monitoring, 24 V AC/DC supply voltage and 1 change-over contact monitoring for current overshoot and undershoot with phase failure, cable break with or without fault buffer ON delay 0 to 60 seconds noise pulse suppression 0 to 30 seconds, switching hysteresis 6 percent and screw connection system with any mounting position, IP20 protection class.

Degree of pollution 3
AC type of current for monitoring
Height 99 mm
Width 55 mm
Depth 112 mm