The REM601 offers protections for motors such as thermal overload protection,

short circuit protection, startup supervision, loss-of-phase protection, negative phase sequence protection,

ground fault protection, undercurrent protection and circuit breaker failure protection.

An emergency restart feature allows motor start up even when start inhibit is activated.

The residual current for CT configured relays is derived from the phase currents.

When applicable the zero sequence CT can be used for measuring residual current especially when sensitive

ground fault protection is required.

The REF601 integrates basic control functionality.

Apart from display of data and parameter settings, the user friendly local

human-machine interface (LHMI) supports control of one circuit breaker with dedicated control push buttons.

The LHMI display has built in support for multiple languages.

All three relays are equipped with a three level, role-based user authentication system with individual passwords for the operator, engineer and administrator levels.

Ease of use

The pre-configured functionality of relay facilitates easy and fast commissioning of switchgear.

Three dedicated and five configurable LEDs indicate the status of relay and protection functions while the 

LCD displays measurements, settings, events and recorded data. The relay can be set-up and configured entirely from the local HMI or with PCM600.

A single wide range auxiliary supply eliminates the need for ordering variance.

The relays also boast a press-fit mounting design for effortless installations on panels.

Configurable inputs and outputs are included which can be easily altered by the LHMI.

These relays incorporate detachable terminals with CT shorting which aids in improving MTTR (Mean Time to Repair) thus

further reducing downtime and improving productivity.