Pollak 54-951 Maxi-Style 30 Amp Circuit Breaker – Type II Modified Reset Plug-In

Professional-Grade Protection for High-Draw Systems
The Pollak 54-951 is a heavy-duty, 30 Amp Maxi-style circuit breaker designed for the demanding electrical environments of Class 8 trucks, trailers, and RVs. As a direct performance upgrade for standard 30A Maxi-blade fuses, this breaker provides the reliability of a reusable circuit protector in the convenient, space-saving footprint of a plug-in blade.

Type II Modified Reset for Superior Safety
Safety is paramount in heavy-duty applications. The 54-951 is a Type II Modified Reset breaker. Unlike Type I "cycling" breakers that repeatedly attempt to power a faulted circuit, this Type II unit trips and stays open as long as power is applied. It will only reset once the power is manually disconnected or the ignition is turned off. This prevents continuous arcing and heat buildup, protecting your vehicle's sensitive wiring and components from damage during a short circuit.

OEM-Style Integration
Built to meet or exceed SAE J553 standards, the 54-951 is a common replacement part for power distribution centers in Freightliner, Paccar, and Ford heavy-duty vehicles. Its rugged metal housing and high-quality internal bimetal strip are engineered to withstand the extreme vibrations and thermal fluctuations found in engine bays and chassis-mounted fuse blocks.

Key Features & Benefits:

• Type II Modified Reset: Stays tripped until the load is removed or power is cut—ideal for troubleshooting.

• Maxi-Blade Format: Direct-fit replacement for standard 30 Amp Maxi-fuses.

• 30 Amp Capacity: Perfect for heavy-load circuits like blowers, lift gates, and auxiliary power.

• Vibration Resistant: Robust metal construction designed for vocational and long-haul trucking.

• Voltage Compatibility: Optimized for all 12VDC/14VDC automotive electrical systems.

• SAE J553 Compliant: Engineered to rigorous industry safety and performance specifications.

Technical Specifications:

• Part Number: 54-951 (Package No. 54-951P)

• Current Rating: 30 Amps

• Reset Type: Type II (Modified Reset / Non-Cycling)

• Style: Maxi-Style Plug-In

• Operating Temperature: -10°F to 150°F (-23°C to 65°C)

• Housing Material: Durable Metal