Brahma 37053005 CM12U control box

Brahma CM12U (art. 37053005) is a “burner control unit” that takes full control of the combustion process in your gas equipment. It is an ideal choice for automating and ensuring the safety of atmospheric gas burners, both with and without forced air supply. This device is a key component for a wide range of heat‑generating equipment, including: Heating systems: heating and combination boilers. Climate control and process equipment: hot air guns (e.g., Master BV70, BV110, BV170, BV290, B230, B360, Oklima), air heaters, combi steamers and radiant tube heaters. Key technical specifications Parameter Value Model Brahma CM12U Article numbers 37053005 / 246.124.144 Supply voltage 230 V AC, 50/60 Hz (110‑120 V version available) Power consumption 7 VA Burner type Atmospheric, progressive (modulating) Operating mode Intermittent (must be stopped once every 24 hours) Pre‑purge time (tv/tp) 1.5 s Safety time (ts) 5 s Waiting time (tw) 1.5 s Minimum ionisation current 1.2 µA Response time on flame loss < 1 s Lockout reset Electric (power interruption) Built‑in ignition 20 kV Enclosure protection class IP00 (requires installation in a control cabinet) Dimensions (W×H×D) 107 × 81 × 36 mm Weight approx. 0.17 kg Base included No (purchased separately) Warranty 6 months Main features and advantages Full automation and instant safety: The CM12U fully manages the combustion cycle – from purging and ignition to emergency shutdown. On flame loss, the fuel supply is cut off in less than 1 second. Two lockout reset methods: The device features a non‑volatile lockout. Depending on the version, restart after a fault can be performed either manually (by pressing the button on the housing) or electrically (by briefly interrupting power). Reliability and durability: The controller uses a two‑electrode arrangement (separate electrodes for ignition and monitoring) and is rated for more than 250,000 operating cycles, guaranteeing a long service life. Modern component base: A built‑in solid‑state ignition transformer and a surface‑mount printed circuit board provide compactness, high efficiency and noise immunity. Installation and operation recommendations Mounting: Given the low IP00 protection class, the unit must be installed inside a protective control cabinet to prevent dust and moisture ingress. Wiring: The connection base is not included and must be purchased separately. The connection diagram is printed on the device housing. Order codes 37053005 246.124.144