Brahma Electromechanical control relay FM31 37030015

Brahma FM31 control box (SKU 37030015) is an electromechanical control relay for automatic ignition and flame safeguard of gas burners operating in intermittent mode. It uses the ionization effect for flame detection, and reacts to flame loss in under one second. The device has two independent safety contacts for gas valve control and a built-in solid-state ignition transformer rated at 20 kV. Its non-volatile lockout with manual reset prevents automatic restart after a fault. Monitored inputs include pressure switches and the flame detector. A built-in electromagnetic interference filter is integrated. This control box is applicable to Riello, Baltur, Weishaupt, and Lamborghini burners.

Control boxes of this type are selected by matching the exact series and type designation, supply voltage, safety and pre-purge times, flame detection method (ionisation, UV or IR), and base or plug pattern. They are normally not interchangeable across series even within the same brand; a mismatch in safety time creates a safety hazard. Before ordering or fitting, verify the existing control's rating and wiring pattern.