Pollak 12-812 ISO 7-Way Connector Socket – 7-Pole Supplementary (Type S) Vehicle Side Socket

Professional-Grade Supplemental Power for Heavy-Duty Fleets

The Pollak 12-812 ISO 7-Way Socket is a specialized vehicle-side connector designed to meet the rigorous demands of the commercial towing industry. Built to the ISO 3732 (Type S) standard, this socket is specifically engineered to provide supplemental power for auxiliary circuits, interior trailer lighting, and battery charging—ensuring these critical systems remain isolated from your primary lighting circuits.

Rugged Construction for Maximum Longevity Engineered for the long haul, the 12-812 features a high-strength zinc die-cast housing that offers superior protection against impact and harsh road debris. The spring-loaded cover creates a weather-tight seal when not in use, protecting the internal contacts from moisture, salt, and road grime.

High-Performance Engineering Equipped with solid brass terminal pins, this socket ensures optimal conductivity and minimal voltage drop, even under heavy electrical loads. The polarized ground pin is a safety-first feature, ensuring proper alignment with the mating plug (Pollak 12-811) and preventing accidental connection to standard SAE J560 plugs.

Key Features:

• ISO 3732 Type S Compliant: Specifically for supplementary 12V-24V power circuits.

• Heavy-Duty Die-Cast Zinc: Provides unmatched durability and corrosion resistance.

• Weather-Protected Design: Features a stainless steel spring-loaded lid with a protective gasket.

• Polarized Ground Terminal: Guarantees correct mating and prevents incorrect electrical connections.

• Solid Brass Pins: Machined for a positive, high-conductivity connection that reduces heat and resistance.

Common Applications:

• Auxiliary trailer power (Type S circuits)

• Interior trailer/cargo area lighting

• Specialized battery charging systems

• Commercial and fleet utility vehicles