AT® Circular Connector Series with AT Contact Technology

Amphenol Industrial
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Amphenol Industrial Operations introduces a series of plastic receptacles featuring Amphenol’s AT contact technology. This series is designed to perform in the demanding environment found on construction and farm equipment as well as truck environment.

The AT Circular series is a molded thermoplastic receptacle with a positive reverse bayonet retention system and sealed by redundant grommet wire sealing. The square flange design ensures a drop in replacement to existing panel design and the jam nut design makes for easy installation. The 9 pin black receptacles are in accordance to the interface of the diagonostic connector of J1939/13.

The AT Contact technology is already used successfully at major OEM’s and features machined contacts with both Nickel and Gold plating.


• Jam nut and square flange mounting styles solution
• Quick mating and unmating ‐ reverse bayonet coupling
• Environmentally sealed ‐ sealed against moisture and contaminants
• Contact retention system decreases installation costs and increases reliability
• RoHs compliant product
• Heavy‐duty industrial connector, economical connector selection