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.

Advanced motor protection and management control for all size motors used in pumps, fans, conveyors, compressors, crushers and transformers. The M550 is fully configurable and includes relays for the detection and management of earth leakage, phase failures, current failures and contact failures. It also includes start up protection and an emergency start function. A stop/start power management function allows the M550 to be controlled remotely, onsite or automatically.
Offers true RMS voltage measurement up to 1700 VAC phase-to-phase direct or 33kV with a VT and true RMS current measurements up to 10 000 Amps per phase.

1.

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

2.

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

3.

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

4.

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

5.

Various channels of communication – Profibus