ENGO ERM-12A Relay Module 12A Volt-Free for Boiler and Pump

Product description

• Switch bigger loads: lets a thermostat control a boiler, circulating pump, lighting or fans up to 12 A when the load needs more power than the thermostat's built-in relay allows
• Volt-free changeover output: NO, COM and NC terminals connect to a boiler with a volt-free ON/OFF input, so a 230V thermostat can be used to control it
• Two ways to trigger it: apply 230V AC to the SL input from a mains thermostat, or close the volt-free COM and NO input from a battery thermostat
• Normally open to normally closed: the NC output gives a solid fuel boiler controller the normally closed contact it needs from a standard normally open thermostat
• Takes the load off a wiring centre: use it on a zone with more than 6 thermal actuators, or to switch a pump or electric heating mat instead of the zone relay
• Compact and clearly marked: 48 x 48 x 20 mm body fits an installation box, printed terminal labels, blue LED relay status, 230V AC 50Hz supply, IP30, 5 year warranty

The ENGO ERM-12A is a compact relay module for switching electrical devices on and off. It lets a room thermostat or controller switch a load of up to 12 A through a volt-free NO/COM/NC output: a boiler, circulating pump, lighting, fans or an electric heating mat.

The relay is powered from 230V AC 50Hz on the L and N terminals and can be triggered in two ways. Apply 230V AC to the SL input from a mains thermostat, or close the volt-free COM/NO input from a battery thermostat or other volt-free contact. Either way the output contacts change over, and they return when the signal is removed. A blue LED shows relay status.

Typical uses from the ENGO guide: connecting a 230V thermostat to a boiler with a volt-free ON/OFF input; giving a solid fuel boiler controller a normally closed contact from a normally open thermostat; switching a device that needs more power than the thermostat's own relay allows; and taking the load off an ENGO ECB08M230 wiring centre zone that has more than 6 thermal actuators, or that runs a pump or heating mat.

At 48 x 48 x 20 mm it is small enough for an installation box, and every terminal is labelled on the front of the module.

Specification: 230V AC 50Hz supply, 12 A maximum load, volt-free COM/NO input, 230V AC SL input, volt-free NO/COM/NC output, IP30, 48 x 48 x 20 mm. In the box: ERM-12A relay module and quick guide. 5 year warranty. Indoor use only. The connected load must not exceed 12 A. Installation must be carried out by a qualified person.