Siemens 3RR2242-1FW30

This monitoring relay is designed for use with the Contactor 3RT2. It comes in a standard size S0 and offers digital adjustable apparent/active current monitoring capabilities. The relay can handle currents ranging from 4 to 40A at frequencies between 20 and 400 Hz, and it supports three-phase power supplies with voltage levels ranging from 24 to 240V AC or DC.

The relay features one change-over contact and one semiconductor output for alarm and warning monitoring. It is equipped with a feature that monitors current overshoot and undershoot, as well as phase failure, cable break, phase sequence fault, residual current blocking, and current warning and alarm thresholds. The relay also includes an error log and on-delay functionality, which can be set between 0 to 99 seconds.

The relay offers noise pulse suppression with a range of 0 to 30 seconds, pause after fault with a range of 0 to 300 minutes, and a screw connection system. This monitoring relay is an essential tool for ensuring the safety and efficiency of your industrial automation systems.