{"product_id":"siemens-3tf56-main-contact-block-pole-assembly","title":"Siemens 3TF56 Main Contact Block \/ Pole Assembly","description":"\u003ch4 dir=\"ltr\"\u003eDescription:\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThe Siemens 3TF56 main contact block is a 3-pole replacement contact assembly designed for Siemens' 400A frame-size AC power contactors, used in industrial motor control and switchgear maintenance. This module includes the silver-alloy contact bridges and dual arc-quenching chute stacks for each of the three poles, along with the front terminal face marked for L1\/L2\/L3 line-side and T1\/T2\/T3 load-side connections. Rated in line with the 3TF56 series at up to 400A operational current and 690V insulation voltage, this contact assembly is built to IEC 947 and VDE 0660 standards, with UL and CSA compliance supporting use in both European and North American industrial installations. As a wear-and-replacement component, this contact block is commonly sourced by maintenance teams servicing existing 3TF56 contactors where the main contacts require periodic replacement due to arcing wear from motor switching duty. Procurement teams across the USA continue to source Siemens contactor spare parts through surplus and wholesale channels to support motor control center maintenance programs, while distributors in the UAE see steady demand for Siemens contact assemblies in industrial and oil \u0026amp; gas maintenance projects. WeSellStocks.co supplies this contact block as part of its surplus industrial electrical spare parts inventory, serving panel maintenance teams, electrical contractors, and MRO buyers Worldwide.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4 dir=\"ltr\"\u003eTechnical Specifications:\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Main Contact Block \/ Pole Assembly (3-Pole)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 3TF56 (contact face marking)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Category\u003c\/strong\u003e: Industrial Electrical \/ Motor Control Spare Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: Up to 690V AC insulation rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e: 400 A (Ie AC-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Rating\u003c\/strong\u003e: Up to 375kW \/ 502HP (AC-3, 690V) — rating of parent contactor assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage\u003c\/strong\u003e: Not applicable (contact block only, no coil)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e: Not applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Bolt-on replacement module for 3TF56 contactor body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards \/ Compliance\u003c\/strong\u003e: IEC 947, VDE 0660, UL Listed, CSA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Confirmed Specs\u003c\/strong\u003e: Torque 124-210 lb.in, aux contact rating A600\/P600, compatible terminal kits 3TX6546-3C\/3TX6566-3C, Made in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4 dir=\"ltr\"\u003eApplication:\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003eThis contact block is used as a replacement wear part for Siemens 3TF56 power contactors in motor control centers, switchgear panels, and industrial process equipment. Since main contacts experience gradual wear from arcing during motor start\/stop cycles, this assembly allows maintenance teams to restore a contactor to full operating condition without replacing the entire unit. It supports procurement teams sourcing genuine Siemens spare parts for scheduled maintenance or emergency repair of existing 3TF56 installations.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eSiemens 3TF56 contact blocks and pole assemblies remain in steady demand among maintenance teams servicing motor control centers equipped with Siemens 3TF series contactors. WeSellStocks.co supports this demand as a surplus and wholesale industrial electrical spare parts supplier, connecting buyers in the USA and UAE with genuine Siemens components at competitive pricing. Distributors and MRO procurement teams worldwide rely on surplus inventory channels to access Siemens contactor spare parts for motor control maintenance projects.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4 dir=\"ltr\"\u003eMetafields:\u003c\/h4\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ebrand\u003c\/strong\u003e: Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epart_number\u003c\/strong\u003e: 3TF56 (contact block)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eproduct_type\u003c\/strong\u003e: Main Contact Block \/ Pole Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eindustry_category\u003c\/strong\u003e: Industrial Electrical \/ Motor Control Spare Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evoltage_rating\u003c\/strong\u003e: Up to 690V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ecurrent_rating\u003c\/strong\u003e: 400 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epower_rating\u003c\/strong\u003e: Up to 375kW \/ 502HP (parent unit rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003einput_voltage\u003c\/strong\u003e: Not applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eoutput_voltage\u003c\/strong\u003e: Not applicable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emounting_type\u003c\/strong\u003e: Bolt-on replacement module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003estandards\u003c\/strong\u003e: IEC 947, VDE 0660, UL, CSA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003estock_quantity_available\u003c\/strong\u003e: Available upon request\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003etarget_markets\u003c\/strong\u003e: USA | UAE | Worldwide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eglobal_shipping\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003ch5\u003eCondition: New Open Box\u003c\/h5\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"We Sell Stocks","offers":[{"title":"Default Title","offer_id":59982165475614,"sku":"Cabin : a84","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0807\/7230\/1086\/files\/1_684662ca-a0d8-4f39-86f7-095fa7cb27d4.png?v=1789737054","url":"https:\/\/wesellstocks.co\/products\/siemens-3tf56-main-contact-block-pole-assembly","provider":"We Sell Stocks","version":"1.0","type":"link"}