Home > News & events

THE LATEST NEWS FROM FRER

10.09.2025

COMBI-6 MULTI-CHANNEL EARTH LEAKAGE RELAY

COMBI 6 X52U.. X72U.
The Multichannel earth leakage relays COMBI 6 have been designed for the monitoring and protection of up to 6 independent systems. A single instrument 72x72 modules size allows a considerable optimization of the overall dimensions and of the wiring connection procedures, thanks also to the presence of withdrawable terminals blocks for the connections. The 4 front keys allow immediate programming, further simpliﬁed by the copy/paste function available in the setting menu.A push button dedicated to the Scroll of the channels allows the selection of the input to be displayed, while in case of trip intervention, the display will automatically show the last tripped channel, and the relative LED will be ON.It is available in 3 versions: Type B only - Type AF only - Mixed B / AF with 5 different input combinations.

Video

Find out more

01.12.2025

INDUSTRIAL TRANSFORMAION

We will be present at INDUSTRIAL TRANSFORMAION

SAUDI ARABIA from 01 – 03 December 2025

STAND 1-441

Find out more

13.05.2025

SPS Italy

We will be present on 13-15 May 2025, Parma Fair

Hall 6, stand E012

Find out more

31.03.2025

Hannover Messe 2024

We will be present at the Hannover Messe 2025 from 31/03 to 04/04

Hall 011, stand A44

Find out more

07.03.2025

Sensor ø110mm for Type B Earth Leakage Relays

TDB110

TDB series sensors are able to measure AC and DC currents with a DC-10kHz bandwidth, and 1mA resolution. TDB sensors have an integrated degauss function with DC offset zeroing, which is by relay command. This function sets to zero the Dc current measuring errors (DC offset) caused by terrestral magnetic field, permanent magnets, DC coil, temperature drifts, mechanical shocks or vibrations. The measuring error of the RMS current (AC+DC) is proportional to the line current and it depends on the geometrical layout of the conductors passing through the sensor hole. It also depend on the distance and the geometrical layout of the nearby conductors passing outside the sensor hole. The IΔn setting <100mA will be possible only by centering the conductors and with controlled environment conditions (temperature, vibration, EMI).