Pollak 11-851 Heavy-Duty Single Pole 300 Amp Service Socket - Die-Cast Zinc

High-Amperage Power Delivery for Demanding Applications

The Pollak 11-851 Single Pole Service Socket is engineered for specialized heavy-duty applications that require massive power transfer. Rated for 300 Amps of continuous duty, this socket is the industry standard for powering lift gates, winch motors, and heavy-duty auxiliary equipment on commercial trucks and trailers.

Rugged Construction & Secure Connectivity

Built to survive the rigors of the road, the 11-851 is housed in a durable die-cast zinc body. The interior features a high-impact insulator and a heavy-duty solid brass pin for maximum conductivity and minimal voltage drop. To ensure a secure and permanent connection, the rear terminal uses a 5/16" stud, allowing for heavy-gauge battery cables to be bolted directly to the socket.

Weather-Ready Reliability

To protect your electrical system from the elements, the socket is equipped with a heavy-duty, spring-loaded cover. The positive-catch lid shields the internal contact from road salt, moisture, and debris when the trailer is disconnected, preventing the corrosion that leads to power loss and system failure.