Brahma 18009002 M300 control box

The Brahma M300 18009002 burner control unit is designed for effective control of forced-draft gas burners running on both gas and fuel oil, and is used in both civil and industrial sectors. Brahma M300 18009002 relay is designed for use with burners having the same flame level.

A feature of the Brahma M300 18009002 burner controller is its adaptability to various flame detection methods. It can use both an electrode method based on the properties of flame ionization and rectification, and an ultraviolet phototube. This gives users the flexibility to choose the appropriate flame detection method according to their specific operating conditions.

“The Laboratory of Macintosh and Thermotechnics at the Studi ed Esperienze Center in Rome – Capannella tested the M300 controller with a power of up to 350 kW. The test results confirmed its compliance with high standards of efficiency and safety. The regulator has received certificate No. 3704/142/77/16, as well as the approval of the Ministry of Internal Affairs for Fire Prevention (Circulars No. 68 and No. 42), which emphasizes its reliability and compliance with safety standards in the field of burner management.

Technical specifications

Supply voltage: 220V (-15%+10%)

Operating temperature range: -10°C +60°C

Degree of protection: IP40

Power consumption at startup: 9 VA

Power consumption during operation: 3.5VA

Maximum rated current:

– burner motor: 4 A

– EV valve: 2 A

– Ignition transformer: 2 A

– Alarm: 1 A

– regulators (T, PA, PG): 6 A

Time:

– pre-purge time (TV): 30 s

– safe time (TS): <3 s

– shutdown time when the flame is on: <1 s

Flame control:

– minimum ionization current: 0.5µA

– recommended ionization current: 7 µA

– minimum insulation resistance between electrode, cable and ground: > 50mohm

– voltage at the detector electrode: 300 V

– recommended operating voltage with phototube: >15 µA

Weight with socket: 600 g

protective housing made of heat-resistant plastic to prevent damage to the control unit;

complete set with a base and cables for connection;

single flame;

protection of the housing from dust and moisture penetration of class IP 40;

Construction

The components of the Brahma M300 18009002 relay are carefully fixed on a frame made of pressed heat-curing material with high dielectric resistance. The plastic case provides reliable protection of the control panel from damage that may occur due to failures, careless opening, exposure to dust and environmental influences. Flexible unipolar conductors of various sizes connect all components of the control system, with the exception of the flame detection and pre-purge circuits, which are effectively integrated on the printed circuit board. This design ensures effective communication between the elements of the system, guaranteeing their trouble-free operation, while providing protection from external influences.