250A 12V/24V/48V Automatic over-current DC circuit breaker

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Product SKU: CB250

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  • Product Details

    This 250A circuit breaker functions as a resettable 250A fuse. It is suitable for any DC system in need of over-current protection, and can be used with a wide range of DC system voltages from 12V to 48V. As with any fuse, the circuit breaker is designed to safeguard the system from over-current events caused by high power draw, short-circuits, wiring errors, equipment faults, or any other occurrence of high current. The circuit breaker is resettable, making it a more convenient option than fuses, which require replacement when blown. Constructed from durable thermal plastic, it can withstand high temperatures (UL94V-0 rated), and is also water-resistant (IP67 rated) and ignition-protected (meets international standards S.A.E. J1625, J1171, UL1500). This product is suitable for a variety of DC applications, including use between off-grid inverter DC input and batteries, in DC power distribution or charging circuits, and in other automotive and marine DC applications.


    Please take note of the following circuit breaker specifications:

    Rating: 250A
    Type: Thermal overcurrent protection device
    Material: Thermal Plastic (UL rated 94V-0)
    Operating temperature: -32°C to 82°C
    Storage temperature: -34°C to 149°C
    Terminals size: M10
    Enclosure: IP67
    Size: 86 x 48 x 37 mm
    Weight: 138g
    Waterproof rating: IP67
    International standard ratings (S.A.E. J1625, J1171, UL1500)

    Please be aware that this circuit breaker is meant for surface mounting. You can download the following documents:
    - Time vs Rated Current graph for Photonic Universe 250A Circuit breaker (CB250)
    - Temperature derating graph for Photonic Universe 250A Circuit breaker (CB250)

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