3MT8170-1AF04 Siemens Contactor AC-3 170A/90kW 400V Size S8 Original Brand New

3MT8170-1AF04

Siemens Contactor AC-3, 170A/90kW,400V, 2NO2NC, 110 VAC, 50 Hz, 3-pole, size S8,screw terminal

Overview

Siemens 3MT8170‑1AF04 is a high-capacity Size S8 SIRIUS contactor tailored for AC‑3 motor control, supporting a continuous current of 170 A (with AC‑3 rating, complemented by AC‑3e/AC‑4 capabilities) and handling three-phase induction motors up to 90 kW at 400 V—making it ideal for heavy-duty pumps, compressors, and conveyor systems operating under frequent start-stop cycles. Built to IEC 60947‑4‑1 standards, this modular device features a robust electromechanical body with screw-type main terminals, ensuring secure and low-resistance connections. It includes a removable auxiliary contact block configured with 2 NO + 2 NC contacts, granting flexibility for control logic, interlocks, and signaling.

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