Amphenol Sine Systems ARC Series™ Connectors are rugged, environmentally sealed, rectangular connectors ideal for high pin-count applications in controlled and/or uncontrolled environmental conditions. These heavy-duty, thermoplastic connectors are available with 20, 40, 50, or 70 positions and feature bonded front seals on the plugs. Amphenol Sine Systems ARC Series Connectors are available as in-line plugs and flange-mount receptacles with A, B, C, and D keying options. Applications include transportation, agriculture, marine, alternative energy, demanding interconnect architectures, and more.