2P 50A DC 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.
2P 50A DC 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.
50A DC MCB Special Tips
1.MCB is for non-professional operation by untrained personnel without maintenance.
2. Satisfying conditions and applications as mentioned above,MCB with “ON-OFF” indicating device is considered suitable for isolation function.
3.Choose a suitable trip curve and install it correctly. MCB will trip and close its protected circuit when a fault occurs, thereby providing protection against electric shock.
3. It is recommended to install special devices, such as surge protection devices, lightning arresters, etc., on the upstream line of the MCB to prevent potential surge voltage and current from appearing on the power input side.
4. To meet the above conditions and applications, MCB with “ON-OFF” indicating device is considered suitable for isolation function.
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|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||