Siemens Contactor AC-3, 120A/55kW,400V, 4NO4NC, 230 VAC, 50/60 Hz, 3-pole, size S6,screw terminal
Backorder available · Factory lead time 2–3 weeks.
Siemens Contactor AC-3, 120A/55kW,400V, 4NO4NC, 230 VAC, 50/60 Hz, 3-pole, size S6,screw terminal
Siemens 3MT8120‑1AL27 is a heavy-duty Size S6 power contactor in the classic SIRIUS 3RT1 series, tailored for robust AC‑3 duty motor control applications. It’s rated for 120 A, delivering up to 55 kW at 400 V, making it ideal for switching large three‑phase squirrel‑cage motors under load—common in industrial compressors, heavy conveyors, large pumps, and HVAC chillers. The contactor uses screw‑type main terminals designed to IEC 60947 standards, with insulation rated to 690 V and surge‑withstand capability of 6 kV, ensuring high electrical resilience.
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| SKU / Model | 3MT8120-1AL27 |
|---|---|
| Weight | 3.3 kg |
| Dimensions | 160 × 196 × 193 mm |
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