Description
The Rich Solar Single Pole Waterproof Circuit Breaker (RS-CB40) from Nomadic Supply Company® is an IP67 waterproof DC circuit breaker that provides reliable overcurrent and short-circuit protection for RVs, boats, trucks, and off-grid solar systems. Rated for 40 amps with a 3,000A interrupt capacity at 48VDC, this breaker features flame-retardant UL 94V-0 housing and insulated terminals for safe operation from -25°F to 180°F. The push-to-trip test button and manual reset lever enable quick diagnostics and restart without replacing fuses.
Rich Solar Single Pole Waterproof Circuit Breaker (RS-CB40) Features:
- IP67 Waterproof and Dustproof. Sealed enclosure rated for full submersion protection, ideal for exposed marine, outdoor, and under-vehicle installations.
- 40A Rating with 3,000A Interrupt. Handles continuous 40-amp loads and safely interrupts fault currents up to 3,000 amps at 48VDC.
- Push-to-Trip Test Button. Built-in test function lets you verify breaker operation without creating a real overcurrent condition.
- Manual Reset Lever. Quick restart after an overcurrent event — no fuse replacement needed, saving time and eliminating spare fuse inventory.
- Flame-Retardant Housing. UL 94V-0 rated thermoplastic enclosure with insulated terminals for safe operation from -25°F to 180°F.
- Marine and Automotive Certified. Meets SAE J1625, SAE J1171 (ignition protected), ABYC E-11 (marine), and CE safety standards.
Rich Solar Single Pole Waterproof Circuit Breaker (RS-CB40) Specifications:
- Overload & Short-Circuit Defense: Instantly cuts power when current exceeds limits, protecting sensitive electronics
- High Interrupt Rating: Safely interrupts up to 3,000A @ 30VDC
- IP67 Waterproof & Dustproof: Fully sealed for reliable outdoor use
- Rating: 25-250A, 30VDC; 48VDC
- Interrupt Rating: 3000A @30VDC
- Operating Temperature Rating: -25°F (-32°C) to 180°F (82°C)
- Storage Temperature Rating: -30°F (-34°C) to 300°F (149°C)
- Marking: Standard marking includes amp ratings and part numbers. Custom markings are also available
- Torque Rating: S 50 in-lbs (5.6N·m) max
- Mounting Torque Rating: Panel or surface-mount options; 50 in-lbs (5.6N·m) max. The threaded insert option has a max torque of 25 in-lbs (2.8N·m)
- Weight: 1.0 lbs


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