DC 2P 50A MCB TOMC7-63 is used for overload and short circuit protection of lighting, power distribution lines and equipment in office buildings, residences and similar buildings, and can also be used for infrequent on-off operations and conversion of lines. Mainly used in various places such as industry, commerce, high-rise and civil residence. DC 2P 50A MCB TOMC7-63s break the circuit by mechanically separating the movable contact and the fixed contact of the miniature circuit breaker. When closing, the moving contact and the fixed contact are closed by the opposite mechanical movement.
1. MCB is for non-professional operation by those untrained, and no maintenance is required
2. Satisfying conditions and applications as mentioned above,MCB with “ON-OFF” indicating device is considered suitable for isolation function.
3. Particular devices such as surge protective devices,surge arrester etc are recommended to install at upstream line to MCB as precaution against potential surge voltage and current occurring at its power input side.
4. Appropriate tripping curve being chosen and properly installed, MCB trips and switches off its protected circuit in case of fault, and thus provides protection against electric shock.
|Rated voltage:||DC 550V|
|Tripping curve:||B C D|
|Rated short-circuit capacity(lcn):||6KA|
|Energy limiting class:||3|
|Rated impulse withstand voltage:||6.2kV|
|Electro-mechanical endurance:||≥ 6000|
|Contact position indication|
|Connection terminal:||Screw terminal / Pillar terminal with calmp|
|Connection capacity:||Rigid conductor up to 25mm²|
|Installation:||On symmetrical DIN rail 35mm / Panel mounting|
|Standards||IEC 60947-2, IEC 60898-1, EN60898-1 , AS/NES 60898.1|
|IP degree of protection||IP40 for modular enclosure conforming to IEC 60529|
|IP20 conforming to IEC 60529|
|Operating altitude||2000 m|
|Ambient air temperature for operation||-35°Cto +70°C|
|Type||Width 9 mm modules|
|2P||Rating (In)||B Curve||C Curve||D Curve||