Brahma 37607052 NDTM31PR control box

Brahma NDTM31PR Burner Control Unit is a modern microprocessor-based burner control unit designed for single‑channel flame monitoring in gas burners with forced ventilation. The device provides a complete automatic ignition cycle, flame presence monitoring and safe gas shut‑off in emergency situations. The unit is built around a reliable microcontroller and features a built‑in ionisation flame sensor (an external UV sensor can also be connected). The device complies with European safety standards EN 298 and EN 230, confirming its high reliability for use in boiler and burner control systems. Parameter Value Name Brahma NDTM31PR Burner Control Unit Manufacturer part number (SKU) 37607052 / 246.124.167 Manufacturer Brahma (Italy) Device type Burner control unit (ignition and flame controller) Purpose For automatic control of the ignition process and flame monitoring in gas burners, heat generators, boilers and other heat‑engineering equipment Main technical specifications Parameter Value Supply voltage 230 V AC, 50/60 Hz Power consumption ≤ 4 W (no load) Gas valve output 230 V AC, max. 2 A Fan/burner output 230 V AC, max. 2 A Ignition output (spark) 230 V AC, 25 mA (built‑in coil) Pre‑purge time (T1) 5–30 s (adjustable) Ignition trial time (TSA) 2–10 s (adjustable) Time between ignition attempts approx. 10 s Post‑purge time 5–15 s Number of ignition attempts 1 or 3 (adjustable) Ionisation current range 0.5–15 µA DC Anti‑recycling protection Yes (on false flame detection) Ambient temperature –20 °C to +60 °C Enclosure protection rating IP40 Dimensions (H×W×D) 80×52×62 mm Mounting type 35 mm DIN rail Indication LED (green – operating, red – fault/standby) Fault diagnostics Blinking error code (number of flashes) Design features Compact housing made of self‑extinguishing plastic (V0 class) Convenient mounting on a 35 mm DIN rail or screw‑mounting on a panel Removable screw terminals for reliable wire connection (cross‑section up to 2.5 mm²) Optical indication of status and operating modes Short‑circuit protection in control circuits Anti‑short cycling function – protection against frequent repeated starts Functions and advantages Automatic ignition – controls the spark transformer and gas valve in a strict sequence. Ionisation flame monitoring – high sensitivity and noise immunity. Safety shutdown – on flame loss, no ionisation signal, or sensor open circuit. Safe restart – the unit automatically performs a restart (up to 3 attempts) with pre‑purge. Self‑diagnosis – on power‑up, checks all circuits and sensors; in case of fault, outputs an error code. Lockout on persistent failure – if ignition attempts fail, enters error mode with gas shut‑off. Protection against start‑up without gas – checks for false flame before start. Applications Gas burners (up to 150 kW) Stand‑alone heat generators and air heaters Heating boilers (domestic and commercial) Drying and process furnaces Agricultural heaters and hot air guns Equipment for heating greenhouses and livestock farms Compatibility Brahma NDTM31PR is a full equivalent / replacement for popular models such as: Brahma TG‑21, TG‑22 Honeywell S4565, S4566 (certain versions) Siemens LME11, LME21 (with appropriate adaptation) Virtually any 230 V control unit with ionisation monitoring Package contents Brahma NDTM31PR burner control unit – 1 pc. Installation and operating instructions (English; Russian available on request) Operating conditions and warranty Recommended humidity: up to 95% (non‑condensing) Do not allow direct water spray or aggressive liquids Warranty: 12 months from the date of sale, provided installation and operating rules are followed Why choose Brahma NDTM31PR? Reliability and service life – Italian quality, MTBF more than 250,000 cycles. Easy adjustment – parameters are selected using DIP switches on the housing. Versatility – suitable for most single‑channel systems with ionisation monitoring. Safety – fully complies with GOST, PB and EN requirements. Affordable price – optimal balance of cost and functionality compared to alternatives. Order codes 37607052, 246.124.167