3MT8050-1AF04 Siemens Contactor AC-3 50A/22kW 400V size S2 Original Brand New

3MT8050-1AF04

Siemens Contactor AC-3, 50A/22kW, 400V, 2NO2NC, 110 VAC, 50 Hz, 3-pole, size S2,screw terminal

Overview

Siemens 3MT8050‑1AF04, also known under the modern designation 3RT2036‑1AF04, is a sturdy Size S2 SIRIUS contactor built for AC‑3 motor control, rated at 51 A continuous current and capable of switching motors up to 22 kW at 400 V. It features a reliable 110 V AC coil (50 Hz) and a three-pole structure with screw-type main terminals, providing secure, low-resistance connections suitable for frequent motor start-up cycles. The contactor is equipped with a removable auxiliary block featuring 2 NO + 2 NC contacts, which supports flexible control logic and interlocking schemes. Designed to meet IEC 60947‑4‑1 standards, the device offers robust electrical resilience with 690 V insulation, 6 kV surge withstand, and IP20 front protection, and is built to endure through its life cycle—offering continued reliability within the SIRIUS modular system

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