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The Mechanical Products Series 53 Branch Disconnect Circuit Breaker, part number 533p004022, offers a combined battery disconnect switching and circuit protection solution. This device is rated for a maximum voltage of 42VDC and a current rating of 40A. It is designed for panel mounting and features a convenient push-to-reset actuator for easy operation.
Engineered for harsh environments, this circuit breaker is tested to UL1077, UL1107, and UL1500 ignition-protected standards. It meets SAE and ABYC compliance requirements, ensuring reliable performance in demanding applications. The operating temperature range is from -40°C to 85°C, making it suitable for a wide array of conditions. The Series 53 breaker provides superior circuit protection, allowing for quick disconnection of downstream circuits while preventing unintentional battery drain during storage or maintenance.
Key specifications include an interrupt capacity of 1.5kA/U3 @ 28VDC and 3kA/U3 @ 14VDC. Endurance testing per SAE J553 and UL1107 standards demonstrates its durability under overload and switching cycles. The unit weighs 90 gm and conforms to various environmental and vibration test requirements, including MIL-STD-202 methods.
The current rating is 40A.
The maximum voltage rating is 42VDC.
The operating temperature range is -40°C to 85°C.
It is designed for panel mounting.
It uses a push-to-reset actuator.
Yes, it is ignition protected and tested to UL1500 standards.