Pollak 54-851PL 100 Amp Type I High Amp Circuit Breaker – 30V DC, Plastic Housing Surface Mount

Maximum Power Protection for Heavy-Duty Electrical Loads 

The Pollak 54-851PL is a professional-grade, 100 Amp single-pole thermal circuit breaker designed for high-capacity power distribution. Built to withstand the rigorous demands of heavy-duty trucking, marine, and emergency vehicle applications, this Type I breaker provides reliable protection for 12V to 30V DC systems without the downtime of blown fuses.

Engineered for Extreme Environments 

Part of the Pollak high-amperage plastic series, the 54-851PL features a thermoset plastic housing (UL rated 94V-0). This material is chosen for its superior thermal stability and electrical insulation properties.

• Ignition Protected: Specifically designed to meet SAE J1625 standards, making it safe for use in engine compartments and fuel-dense environments.

• Weatherproof Design: The housing is splash and dustproof, ensuring the internal mechanisms are shielded from road salt, grime, and moisture.

• High-Torque Terminals: Equipped with 1/4" - 28 stainless steel studs and included insulators to ensure secure, high-conductivity connections for large-gauge wiring.

Type I Automatic Reset Efficiency As a Type I (Cycling) breaker, the 54-851PL automatically resets after tripping once the thermal element cools down. This is ideal for critical circuits where manual access is limited or where temporary overloads should not result in a permanent loss of power.

Typical Applications:

• Main DC power distribution for Trucks and RVs

• Heavy-duty winches and lift gates

• Large marine trolling motors and windlasses

• Power inverter input protection

• Construction and agricultural equipment auxiliary power

Technical Specifications:

• Part Number: 54-851PL

• Current Rating: 100 Amps

• Voltage Rating: Up to 30V DC

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

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

• Mounting: Surface Mount (Two-hole base)

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

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

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