45 Amp Branch Disconnect Circuit Breaker
1/4″ -28 Stud Terminals

Traditional battery disconnect switching and circuit protection in a single device. Made in the USA!

The Series 53 Branch Disconnect/Circuit Breaker incorporates traditional battery disconnect switching (non-engine) and circuit protection into a single rotary switch, eliminating the need for a separate battery switch and circuit breaker/fuse. The Series 53 provides a quick means to disconnect traditional downstream circuits while preventing unintentional battery drain or allowing for disconnected battery power during storage and maintenance.

• Disconnect and protect to 32 Volts DC
• 45 Amps
• SAE and ABYC Compliant Tested to UL1077, UL1107, UL1500
• Combined UL1107 & UL1077
• Ignition-protected
• IP66 and IP67 Weatherproof in harsh environments
• 100% Hold, 135% Trip
• Operating Temp Range -40°C(-40°F) to 85°C (185°F)
• Motor load rated OL1 @ 14V
• Interrupt capacity per SAE J553 & UL1077 (U3) at 14 & 28VDC
• interrupt capacity 1.5kA @ 14VDC per ABYC (SAE J553 & UL1077 U3) 3kA @ 14VDC
• CE Marked
• Made in the USA

Applications 

• Branch circuit protection in industrial/commercial vehicles
• Agricultural
• Trucks
• Automotive Lifts
• Construction
• Buses
• Battery Chargers
• Marine
• Emergency Vehicles
• Recreational Vehicles
• Protect wiring, motors, inverters, lighting, pumps, converters, components, aternators, generators, batteries, air compressors, and more

Approvals

• Interrupt Capacity: SAE J553, ABYC E-11, UL1077
• Ignition Protection: ISO 8846, USCG, ABYC, UL1500 and SAE J1171
• Endurance: SAE J553, UL1107
• Dielectric Strength: UL1077, UL1107
• Shock, Vibration, Corrosion, Humidity: MIL-STD-202, UL1077, UL1107
• Ingress Protection: IEC 60529
• EU Approvals: CE

-40°C to 85°C