Units are available for air suspensions with single and dual control valves. This line features connectors with enough contacts for every circuit that must be linked between a truck and its trailer. The Thirteen-Pole Connector, one of the connectors in the expanded line, surpasses SAE J560b performance standards and conforms to the required interchangeability between thirteen and seven pole sockets. The unit's seven standard diameter contacts use Cole Hersee's Spring-Grip design, with a self adjusting spring band providing uniform contact with the socket pins. The additional six small diameter contacts carry up to 25 amps, allowing access to six additional circuits.
Contacts float for proper engagement with all mating sockets.
Cole Hersee's ISO Seven Pole Connector, included in the expanded line, works in conjunction with the standard connector between a truck and trailer to handle extra circuits. The connector consists of a seven pole plug and socket with the ground terminal reversed, creating a matching pair that prevents drivers from inadvertently misconnecting the ISO plug with a standard trailer socket. The unique glass filled nylon blades and honeycomb-designed hub enable this unit to not only weigh less but also pull more air and take less power to operate. These units weigh 9 to 11.5 lb, and they can be installed by the truck builder or retrofit into existing applications. Pilots and mounting patterns are available for most heavy-duty vehicle applications.