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Miniature Circuit Breaker
- Product Description
-
Product Introduction
Suitable for overload and short circuit protection of AC 50/60Hz, rated voltage 230/400V, rated current up to 63A circuits. It can also be used for infrequent switching operations of circuits under normal conditions, mainly used in industrial, commercial, high-rise, and residential buildings.
Temperature: The upper limit of ambient air temperature shall not exceed +40℃, the lower limit shall not be below -5℃, and the 24-hour average temperature shall not exceed +35℃.
Altitude: The installation site altitude shall not exceed 2000m.
Humidity: The atmospheric relative humidity shall not exceed 50% at an ambient air temperature of +40℃, and higher relative humidity is allowed at lower temperatures.
Others: Pollution level is 2; installation category is Class Ⅱ and Ⅲ; the external magnetic field in any direction at the installation site shall not exceed 5 times the geomagnetic field; generally installed vertically with a tolerance of 2° in any direction; the installation location should be free of significant shocks and vibrations.
Main Parameters
Rated operating voltage (Ue): AC230V/400V (1P), 400V (2P, 3P, 4P).
Rated insulation voltage (Ui): 600V.
Rated impulse withstand voltage (Uimp): 4KV.
Rated current (In): Available in various specifications such as 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.
Rated short-circuit breaking capacity (Icn): 6000A for 6A-40A, 4500A for 50A-63A.
Service short-circuit breaking capacity (Ics): 6000A for 6A-40A, 4500A for 50A-63A.
Number of poles: Available in single pole (1P), double pole (2P), triple pole (3P), and four pole (4P).
Instantaneous trip type: Common types are C type (5In-10In) and D type (10In-16In).
Structural Composition
Breakable contact connection: Composed of fixed and movable contacts.
Insulating housing: Generally made of metal tube or insulating cylinder, used to install breakable contact connections, arc extinguishing devices, and transmission mechanisms.
Transmission mechanism: Drives the contacts to open and close.
Arc extinguishing device: Used to extinguish the arc generated when breaking the circuit.
Product Features
High breaking capacity: Some rated current levels can reach above 10KA.
Convenient wiring: Features dual wiring functions, can connect to standard busbars and flexible wires.
High safety: Equipped with finger-proof protective combined wiring terminals to prevent electric shock.
Good operating performance: Uses energy storage mechanism operation, contacts close quickly, unaffected by manual handle operation speed, improving service life.
Rich accessories: Various accessories available, modular and flexible combinations, easy installation.
Excellent materials: Housing and some functional parts are made of high flame-retardant, high-temperature resistant, and impact-resistant plastics.
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Company Address:
No. 3 Huixin Street, South Side of Liaohe Road, Bearing Industrial Park, Linxi County, Xingtai City, Hebei Province
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