12V Auto Reset Plastic Circuit Breakers with Mounting Bracket

12V Auto Reset Circuit Breakers for Reliable Overcurrent Protection in Automotive Applications

Automotive circuit breakers are essential for maintaining safety in DC applications by providing continuous overcurrent protection. These auto-reset circuit breakers are specifically designed to cycle repeatedly until the overcurrent source is found and corrected, delivering dependable performance. Del City offers a broad range of 12V circuit breakers in amperages from 5 to 50 amps to suit a variety of needs. These 12V canned breakers come in both metal and plastic housings, with options for brackets or without, making them versatile for different installations. Featuring a single pole and stud mount design, these type 1 circuit breakers are ideal for automotive use in trucks, buses, and additional applications like welding tools, power outlet strips, portable generators, and trolling motors. Engineered for durability, each circuit breaker includes nuts and washers for easy installation. Constructed with an internal composite alloy material, these breakers efficiently separate contacts in an overcurrent event and reset automatically once cooled. They operate within a temperature range of -10°F to 150°F and can be stored from -20°F to 200°F, proving reliability across diverse environments. Compatible with EATON/Bussmann models like 121A10-A2P-KA through 121A40-A2P-KA, these Del City circuit breakers provide trusted quality and interchangeable options for your electrical needs. Be aware that some products may incur tariff charges at checkout.

Products on this page may be affected by tariff charges at checkout.

• Constructed with internal composite alloy material to deflect and separate the contacts when an overcurrent situation occurs and return to the run mode as it cools.
• Operating temperature: -10° F to 150° F.
• Storage temperature: -20° F to 200° F.
• Engineered for durability.
• Breakers include nuts and washers.
• Comparable with EATON/Bussmann parts: 121A10-A2P-KA, 121A15-A2P-KA, 121A20-A2P-KA, 121A25-A2P-KA, 121A30-A2P-KA, 121A40-A2P-KA
• Click here for the circuit breaker insulator.