M550 Motor Protection and Management Relay

The M550 is fully configurable and includes relays for the detection and management of earth leakage, phase failures, current failures, and contact failures.

Additional information


Non-volatile memory (retain memory in power down) to store events with date and time stamp.


Stores the last 1 020 events with date, time, three phase voltages, two phase currents, auxiliary voltage, earth leakage reading, and event.


Trending function that can be configured with up to 16 parameters.


Programmed remotely via the local network, a personal computer and USB cable or onsite, via infra-red remote control or the device keypad.


Various channels of communication – Profibus