The Siemens 3RT1317-1BB40 is a heavy-duty AC contactor engineered for reliable performance in demanding industrial environments. This 4-pole contactor is designed to handle significant electrical loads, with a rated operating current of 22A and a service power of 14.5kW at 400V. It utilizes a conventional operating mechanism and is controlled by a 24V DC voltage, offering precise and dependable control. The contactor features screw-type terminals for both main and auxiliary circuits, ensuring secure and lasting connections. Its versatile mounting options, including screw and snap-on mounting onto 35mm DIN rails, make it easily adaptable to various industrial setups. This contactor is ideal for motor control, lighting systems, and other applications requiring frequent and reliable switching of AC power.