12V Auto Reset Metal Circuit Breakers with Parallel Mounting Bracket

Reliable 12V Auto Reset Circuit Breakers for Optimal DC Overcurrent Protection

Automotive circuit breakers are critical for providing continuous overcurrent protection in DC applications, automatically resetting to safeguard vehicle and equipment systems. Specifically engineered for 12V DC circuits, these auto-reset breakers cycle until the overcurrent issue is detected and resolved, ensuring reliable performance. Del City offers an extensive range of 12V canned circuit breakers, with options from 5 to 50 amps, ideal for diverse uses. Available in both metal and plastic housings and with or without brackets, these circuit breakers feature stud mounts and a single pole design, qualifying as type 1 circuit breakers. Their versatility makes them perfect for a variety of applications, including installation in trucks, buses, welding tools, power outlets, portable generators, and trolling motors. Constructed with a durable internal composite alloy, these breakers are designed to separate contacts upon overcurrent and return to operation as the system cools. They operate in temperatures from -10°F to 150°F and store safely between -20°F and 200°F, proving their durability in extreme environments. Each breaker comes with nuts and washers for straightforward installation. Additionally, Del City’s 12V circuit breakers are fully compatible with EATON/Bussmann models like 121A05-B2M-KA through 121A50-B2M-KA, providing reliable and interchangeable solutions for your DC electrical needs. Note: 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 to EATON/Bussmann parts: 121A05-B2M-KA, 121A10-B2M-KA, 121A15-B2M-KA, 121A20-B2M-KA, 121A25-B2M-KA, 121A30-B2M-KA, 121A35-B2M-KA, 121A40-B2M-KA, 121A50-B2M-KA
• Click here for the circuit breaker insulator.