Protect your high-current DC circuits with the OptiFuse 153050 50A Manual Reset Circuit Breaker, engineered for automotive, marine, RV, and industrial use. Built with a waterproof IP67-rated housing, this Type III breaker supports up to 42 VDC and delivers 3000A interrupt capacity at 30VDC.

Ideal for demanding environments, the unit is SAE J1171 and UL1500 ignition protected, making it safe for use near fuel systems or engine compartments.

Product Features:

• Model: 153050

• Type: Type III Manual Reset, Waterproof Circuit Breaker

• Amperage Rating: 50A

• Voltage Rating: Up to 42 VDC (32 VDC UL/cURus approved)

• Interrupting Rating: 3000A @ 30 VDC

• Reset Type: Manual push-button

• Mounting Style: Surface mount

• Waterproof Rating: IP67

• Compliance: ABYCE-11, SAE J1625, SAE J1171, UL1500 Ignition Protected, UL Recognized

• Materials:

  • Frame: Thermoset plastic (UL 94-V0)

  • Stud insulators: EPDM

• Torque Specs:

  • Mounting: Max. 40 in-lb

  • Stud: Max. 50 in-lb

• Dimensions: 2" x 3" (approx.)

Time Delay Characteristics:

• 100% Load: No trip

• 135% Load: 30 min. max hold time

• 200% Load: 12–45 sec hold time

• 300% Load: 3.5–15 sec hold time

and Ideal For:

• RVs, boats, off-grid systems, UTVs, trailers

• High-current accessories like inverters, winches, power distribution boxes

• Applications requiring reliable resettable protection in wet or rugged environments