Pollak 54-860PL 250 Amp Type I High Amp Circuit Breaker – 30V DC, Panel Mount Plastic Housing

Industrial-Strength Protection for High-Output DC Systems 

The Pollak 54-860PL is a heavy-duty, 250 Amp single-pole thermal circuit breaker designed for maximum power distribution safety. Built to handle the most demanding electrical loads in the trucking, construction, and marine industries, this Type I breaker offers a reliable, resettable alternative to high-capacity fuses for 12V to 30V DC systems.

Precision Panel-Mount Design 

Unlike the surface-mount versions in the series, the 54-860PL is engineered for panel-mount installation. This allows for a clean, professional finish in dashboard arrays, power distribution centers, or custom control panels.

• High-Grade Thermoset Plastic: The housing is constructed from UL-rated 94V-0 plastic, providing exceptional thermal stability and non-conductive safety that metal breakers cannot match.

• Ignition Protected: Complies with SAE J1625 and J1171 standards, ensuring it is safe for use in engine compartments, battery rooms, and environments where explosive fumes may be present.

• Weatherproof Durability: Designed to be splash-proof and dust-proof, protecting the internal mechanics from road salt, moisture, and debris.

Type I Automatic Reset Efficiency 

Equipped with Type I (Cycling) reset technology, the 54-860PL automatically resets after tripping once the internal thermal element cools. This feature is critical for high-draw applications where manual resetting is impractical, ensuring your system returns to operation as soon as the overload condition is cleared.

Typical Applications:

• Main power distribution for heavy-duty 4000W+ Inverters

• Master circuit protection for cranes and industrial winches

• Emergency vehicle power centers and fire truck apparatus

• High-capacity marine battery banks and bow thrusters

• Construction equipment and agricultural machinery main power

Technical Specifications:

• Part Number: 54-860PL

• Current Rating: 250 Amps

• Voltage Rating: Up to 30V DC

• Reset Type: Type I (Automatic Reset / Cycling)

• Housing: Thermoset Plastic (UL Rated 94V-0)

• Mounting Style: Panel Mount

• Terminals: Two 1/4" - 28 Stainless Steel Studs (Includes stud insulators)

• Operating Temp: -25°F to +180°F (-32°C to +82°C)

• Compliance: SAE J1625, SAE J1171 (Ignition Protected)