Pollak 54-955 ATO-Style 20 Amp Circuit Breaker – Type II Modified Reset (Ford HD 8)

Heavy-Duty Circuit Protection for Ford & Commercial Fleets
The Pollak 54-955 is a professional-grade 20 Amp circuit breaker designed in the standard ATO/ATC footprint. Specifically engineered to meet the requirements for Ford HD 8 series vehicles and other heavy-duty applications, this breaker is a high-reliability replacement for traditional 20A blade fuses in 12VDC systems.

Type II Modified Reset for Superior Safety
Protect your vehicle from electrical damage with Type II Modified Reset technology. Unlike standard cycling breakers that repeatedly attempt to restore power to a faulted circuit, the 54-955 trips and stays open as long as power is applied. It will only reset once the power source is disconnected or the ignition is turned off. This prevents continuous arcing and protects sensitive wiring from the heat buildup associated with persistent short circuits.

Direct Plug-In Replacement
Built to the standard ATO blade format, the 54-955 provides a seamless upgrade for existing fuse panels. Its rugged construction and metal housing are designed to withstand the high vibration and extreme temperature shifts common in engine compartments and chassis-mounted power distribution centers.

Key Features & Benefits:

• Type II Modified Reset: Safety-first design remains tripped until power is cut—ideal for troubleshooting.

• Ford HD 8 Compatibility: Specifically designed for heavy-duty Ford truck electrical systems.

• Standard ATO/ATC Format: Direct-fit replacement for standard 20 Amp blade fuses.

• 20 Amp Capacity: Perfect for power windows, auxiliary lighting, and heavy-duty motor circuits.

• Durable Construction: Built with high-quality materials to meet SAE J553 standards.

• 12VDC Optimized: Designed specifically for automotive, truck, and trailer electrical systems.

Technical Specifications:

• Part Number: 54-955 (Package No. 54-955P)

• Current Rating: 20 Amps

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

• Style: ATO / ATC Plug-In (Standard Blade)

• Compatibility: Ford HD 8

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