Brahma 37120212 MM12F control box

SKU: 37120212, 246.124.221

Price on request

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The Brahma MM12F 37120212 relays are high–tech controllers specially designed for controlling gas atmospheric burners with a fan in the combustion circuit or working without it in non-constant operation conditions.

Application

• Steam convectors;

• Heating boilers;

• Warm air generators;

• Radiator tubular heaters;

• Water heaters and other gas installations with an atmospheric burner.

Features

− EU certification type (CE PIN code 0694BR1154) in accordance with Directive 90/396 on gas appliances and the following amendment to Directive 93/68;

− In accordance with EN 298 (European standard for automatic programming and flame control systems for gas burners);

− Flame control based on the rectifying properties of the flame (ionization);

− two independent safety contacts in series at the outlet of the gas valve (models with manual reset);

− service life of electrical equipment at max. declared load > 250,000 operations;

− built-in fully solid-state ignition device with high efficiency;

− auxiliary contact for low–power ignition or control of the main gas valve in intermittent power control systems (this contact is not isolated from the main supply voltage by reinforced insulation, therefore the relay contact is not suitable for controlling SELV circuits – Very low safety voltage, for example, 24 V).

Technical specifications

• Precise control of all functions by the microprocessor;

• Built-in high-efficiency ignition transformer;

• Short circuit protection;

• Double flame;

• for burners without a fan;

• Manual reset;

• monoelectrode;

• molex connectors.

• Complies with EN298:1993

• Complies with EN298:2003 (2)

• Classification code according to EN 298 (3): AMCLXN

• Without base in the package;

• The declared resource is at least 250,000 startup cycles.

• Safety time (ts): 5 sec

• Standby Time (tw): 1.5 sec

• Minimum ionization current: 1.2 mA

• Power supply: 230 V

• Operating ambient temperature: -20 to +60 °C

• Dust and moisture protection class: IP 00

• Weight: 0.2 kg

• Dimensions: 11.6×9.6×3.6 cm

Construction

The MM12F 37120212 gas control unit has a robust housing made of plastic and self-extinguishing material, providing reliable protection against mechanical damage, dust and dirt. This not only prolongs the service life of the device, but also reduces the risks associated with exposure from the external environment. Optimization of the dimensions of the printed circuit board using a module with electronic components on the surface led to a reduction in the size of the device and an increase in its efficiency.

The principle of operation

When turned on, the controller performs self-monitoring and checks of components, including a flame signal amplifier and an air pressure switch. In case of malfunction detection, the controller is locked, ensuring the safety of the system.

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