Schneider Electric LC1D40AT7 Three-Phase Contactor

LC1D40AT7 is a TeSys Deca three‑pole AC‑3 rated contactor from Schneider Electric, designed to reliably switch three‑phase motors in control panels. The black, compact unit features three normally open contacts (3 NO) with screw clamp terminals for secure wiring and easy field installation, making it a straightforward drop‑in for motor control circuits. It is rated for AC‑3/AC‑3e operation up to 400 VAC and carries a 40 A load current, suitable for starting and stopping modest to medium horsepower motors in applications such as conveyors, fans, pumps, and machine tools. The coil is rated for 480 VAC at 60 Hz, enabling direct use with common 480 V control circuits in North American and other 60 Hz environments. As part of the TeSys Deca family, LC1D40AT7 benefits from Schneider Electric’s robust construction and compatibility with other TeSys components, including overload relays and control accessories, to create a cohesive motor control solution in industrial automation. This model’s three‑pole arrangement and N.O. contact configuration support straightforward, reliable motor control with clear, switch‑on and switch‑off action, while its screw terminals simplify wiring in panel assemblies. For panels needing a dedicated, space‑efficient motor contactor with a 480 V coil and 40 A AC‑3 rating, LC1D40AT7 delivers dependable performance within its specified voltage and current envelopes in 50/60 Hz systems.