Pollak 11-739 7-Way Round Pin Trailer Socket with Integrated 30A Circuit Breaker & Split Pins

Industrial-Strength Protection for High-Demand Electrical Systems The Pollak 11-739 7-Way Round Pin Socket is the ultimate vehicle-side connector for heavy-duty commercial fleets and specialized industrial equipment. Unlike standard sockets, the 11-739 features an integrated 30 Amp circuit breaker. This built-in safety measure provides a dedicated line of defense for your auxiliary and power circuits, automatically tripping to prevent damage from overloads or short circuits before they can affect your truck’s primary electrical harness.

Maximum Conductivity with Precision Split Pins Engineered for the high-vibration environment of long-haul trucking, the 11-739 utilizes split-brass pins. This design provides a "tension-fit" that expands slightly when coupled with a trailer plug, ensuring maximum surface contact. This eliminates common towing headaches like flickering lights or intermittent power loss caused by road shock and constant vibration.

Rugged Construction for the Long Haul Housed in high-strength die-cast zinc, the 11-739 is built to withstand physical impacts, road debris, and the corrosive effects of road salt. The interior is fitted with a high-impact green ABS thermoplastic insulator for superior heat resistance. For protection when not in use, the heavy-duty, spring-loaded cover features a positive-catch lid that creates a weather-tight seal against moisture and grime.

Key Features & Benefits:

• Integrated 30A Circuit Breaker: High-capacity protection against electrical shorts and auxiliary circuit overloads.

• Split-Brass Pins: Self-adjusting design ensures a secure, high-conductivity connection under heavy vibration.

• Die-Cast Zinc Housing: Industrial-grade durability with professional-grade corrosion resistance.

• 7-Pole Round Pin Design: Standard SAE J560 configuration for commercial, fleet, and agricultural trailers.

• Weather-Tight Shielding: Spring-loaded lid with a heavy-duty hinge protects internal terminals from the elements.

• Easy Installation: Standard 2-hole flange mounting (2.93" centers) for secure attachment to bumpers or hitch brackets.

Technical Specifications:

• Part Number: 11-739 (11-739P)

• Configuration: 7-Pole Round Pin (Vehicle-Side Socket)

• Circuit Protection: Built-in 30 Amp Breaker

• Pin Type: Split-Brass Pins

• Voltage Rating: 12-24V DC

• Material: Die-Cast Zinc / Green ABS Insulator

• Compliance: Meets and exceeds SAE J560 specifications