{"product_id":"siemens-contactor-3-pole-size-14-335kw-400-380v","title":"Siemens Contactor, 3-pole, size 14, 335kW, 400\/380V","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3TF6844-0CM7 is a heavy-duty 3-pole power contactor from the SIRIUS 3TF6 \/ 3TF range (contactor size 14). It is designed for high-power motor and load switching, offering robust performance for industrial applications requiring high current and high switching capacity. With strong main contacts and multiple auxiliary contacts, this contactor is suitable for heavy AC motors, large three-phase loads, or systems requiring frequent switching under demanding conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3-pole main contacts — for three-phase motor or heavy load switching\u003c\/li\u003e\n\u003cli\u003eMain contact rating: up to 630 A at 400 V (AC-3) — suitable for heavy-duty applications\u003c\/li\u003e\n\u003cli\u003eMain contact capacity: up to 335 kW at 400 V (AC-3) — high-power motor compatibility\u003c\/li\u003e\n\u003cli\u003eAuxiliary contacts: 4 NO + 4 NC — for signalling, interlocking or control logic integration\u003c\/li\u003e\n\u003cli\u003eVacuum-type contactor design (3TF6 series) — ensures reliable switching performance and extended contact life\u003c\/li\u003e\n\u003cli\u003eScrew-terminal connections for both main and auxiliary circuits — secure wiring, suitable for large conductors\u003c\/li\u003e\n\u003cli\u003eInsulation voltage rating: up to 1000 V (main circuit), 690 V (auxiliary circuit) — supports high-voltage environments\u003c\/li\u003e\n\u003cli\u003eSurge voltage and impulse resistance: up to 8 kV (main circuit) \/ 6 kV (auxiliary circuit) — robust against transients\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3TF6844-0CM7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries \/ Type:\u003c\/strong\u003e SIRIUS 3TF6, size 14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Poles:\u003c\/strong\u003e 3 (three-phase main contacts)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Contact Rating (AC-3, 400 V):\u003c\/strong\u003e 630 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Motor Power (AC-3, 400 V):\u003c\/strong\u003e 335 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 4 Normally Open + 4 Normally Closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Voltage (Main Circuit):\u003c\/strong\u003e up to 1000 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Voltage (Auxiliary Circuit):\u003c\/strong\u003e up to 690 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurge Voltage Resistance (Main \/ Aux):\u003c\/strong\u003e 8 kV \/ 6 kV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Coil Supply:\u003c\/strong\u003e 200–240 V AC, 50\/60 Hz (standard coil variant) — check coil variant when ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Screw-terminal for main and auxiliary circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Endurance:\u003c\/strong\u003e ~5 000 000 switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature:\u003c\/strong\u003e –25 °C … +55 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Rating (housing \/ front):\u003c\/strong\u003e IP00 (requires enclosure to meet panel-protection ratings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis contactor is suited for industrial motor control, heavy machinery switching, large compressor or pump starters, large HVAC systems, heavy-duty loads in manufacturing, and any application requiring high power switching. With multiple auxiliary contacts, it is also useful for control-logic integration, signalling, interlocking, and automation of complex systems. Ideal for motor control centers (MCCs), switchgear, industrial panels, and any environment where reliability and high current capacity are essential.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775033356352,"sku":"3TF6844-0CM7","price":68615.87,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3TF6844-0CM7.jpg?v=1765367485","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-contactor-3-pole-size-14-335kw-400-380v","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}