Resettable 40 A DC circuit breaker (CBR40) combining thermal overcurrent protection and a manual on/off isolator for panel or recess mounting.

• Rating: 40 A for 12 V / 24 V / 48 V DC systems; thermal overcurrent protection (resettable) with manual isolation switch.
• Material: thermoplastic (UL94 V-0); ignition-protected to SAE J1625, SAE J1171 and UL1500 standards.
• Operating temperature: -32°C to 82°C (-25.6°F to 179.6°F); storage temperature: -34°C to 149°C (-29.2°F to 300.2°F).
• Enclosure: IP67 (waterproof), suitable for marine and automotive DC use.
• Terminals: M6. Size: 74 x 48 x 37 mm (2.91 x 1.89 x 1.46 in). Weight: 110 g (3.88 oz).
• Panel or recess mount for neat installation; manual isolation for easy disconnection and reconnection.
• Use cases: ideal between solar/wind charge controllers and batteries, off-grid inverter DC inputs, DC distribution and charging circuits.
• Downloadable documents: Time vs Rated Current graph and Temperature derating graph for the Photonic Universe 40 A circuit breaker (CBR40).

Installation note: size and current ratings must match system requirements; use correct M6 hardware and observe the provided time/current and temperature derating graphs when selecting placement and load.