Brahma 37500010 NDM11 control box

Brahma NDM11 burner control unit (art. 37500010) is a compact microprocessor burner management unit designed for automatic ignition and flame monitoring in atmospheric gas and oil burners. The device operates in intermittent mode and provides a full cycle: ignition, flame monitoring and safety lockout in abnormal situations. The NDM11 model does not require pre‑purge (no purging), making it an ideal choice for simple burners with direct ignition, for example in domestic boilers, water heaters and convectors. Main technical specifications Parameter Value Supply voltage 220–240 V, 50/60 Hz Flame control Ionisation electrode or photodiode FD Burner type Atmospheric (without pre‑purge) Fuel type Gas, liquid fuel Operating mode Intermittent Pre‑purge None (Tv = 0) Safety time (Ts) 5 seconds Operating temperature –20 °C to +70 °C Protection class IP40 Dimensions (H×W×D) 10.7 × 8.1 × 3.6 cm Key features Built‑in high‑voltage ignition transformer – no external unit required. Microprocessor control with self‑diagnosis and LED indication. No pre‑purge – instant start‑up, suitable for simple systems. Universal flame control – ionisation (gas) or photodiode FD (liquid fuel). 5‑second safety time – safe shutdown if no flame is present. Electric lockout reset – brief power interruption to restart. Compact IP40 housing – protection against dust and moisture, convenient for mounting. Applications Domestic gas boilers (atmospheric) Water heaters and convectors Infrared heaters Small heat generators without forced ventilation Order codes 37500010, 246.124.250