The RM22TR33 control relay, part of the Zelio Control range of products from Schneider Electric, has been designed to monitor the sequence of phases, phase loss, overvoltage and under-voltage events in 3 phase electrical systems. The RM22TR33 is a multifunctional control relay that has a switching capacity of 2000 VA.
The settings include a diagnostic button for load circuit testing, a relay output status LED, a fault detection indication LED, a dial pointer LED indicator for relay power ON status and a relay output ON-delay or OFF-delay.
Features include a time delay that is adjustable 0.1...30 s, +/- 10 % of the full-scale value on crossing the threshold Tt, 35 mm DIN Rail mount and a measurement range of 380...480 V voltage AC. 3 Phase Control Relay Applications include, 3-phase motors, Pumps, fans, mining and conveyors, cranes, escalators, agricultural, and Automation & Process control.