{"product_id":"westinghouse-electric-m331b-mechanical-interlock","title":"Westinghouse Electric M331B Mechanical Interlock","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"661\"\u003eThe Westinghouse M331B Mechanical Interlock is an industrial interlock accessory designed to mechanically prevent simultaneous operation of paired contactors or motor starters in reversing and transfer control applications. Commonly installed in \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003emotor control centers\u003c\/a\u003e, reversing starter assemblies, and industrial automation panels where dependable mechanical interlocking and safe switching operation are required. Maintenance teams, electricians, and system integrators use this interlock assembly for replacement of worn control accessories, starter maintenance, and industrial control system upgrades. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"663\" data-end=\"680\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"682\" data-end=\"1047\"\u003eThe Westinghouse M331B mechanical interlock is commonly used in reversing motor starters, conveyor systems, pumps, compressors, transfer systems, and manufacturing automation equipment where reliable contactor interlocking and prevention of simultaneous contact closure are critical for safe and continuous equipment operation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1049\" data-end=\"1078\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1080\" data-end=\"1823\"\u003e• Brand: Westinghouse\u003cbr data-start=\"1101\" data-end=\"1104\"\u003e• Part Number: M331B\u003cbr data-start=\"1124\" data-end=\"1127\"\u003e• Alternate Part Number: M33-1B\u003cbr data-start=\"1158\" data-end=\"1161\"\u003e• Product Type: Mechanical Interlock\u003cbr data-start=\"1197\" data-end=\"1200\"\u003e• NEMA Size Compatibility: Size 00, 0, and 1\u003cbr data-start=\"1244\" data-end=\"1247\"\u003e• Application: Industrial motor control systems\u003cbr data-start=\"1294\" data-end=\"1297\" data-is-only-node=\"\"\u003e• Function: Mechanical contactor interlocking\u003cbr data-start=\"1342\" data-end=\"1345\"\u003e• Compatible Equipment: A200 and A900 starters and contactors\u003cbr data-start=\"1406\" data-end=\"1409\"\u003e• Compatible Pole Configurations: 3x3 and 5x5 pole arrangements\u003cbr data-start=\"1472\" data-end=\"1475\"\u003e• Installation Type: Contactor mounted\u003cbr data-start=\"1513\" data-end=\"1516\"\u003e• Usage Environment: Commercial and industrial electrical systems\u003cbr data-start=\"1581\" data-end=\"1584\"\u003e• Designed For: Reversing starters and interlocked control circuits\u003cbr data-start=\"1651\" data-end=\"1654\"\u003e• Construction: Industrial mechanical interlock assembly\u003cbr data-start=\"1710\" data-end=\"1713\"\u003e• Electrical Application: Motor control and automation switching systems\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1825\" data-end=\"1849\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1851\" data-end=\"1916\"\u003e• Eaton M33-1B\u003cbr data-start=\"1865\" data-end=\"1868\"\u003e• Cutler-Hammer M331B\u003cbr data-start=\"1889\" data-end=\"1892\"\u003e• Allen-Bradley 1494V-MI\u003c\/p\u003e","brand":"Westinghouse","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51731989823790,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b13368cd-404a-4710-bc9a-1687939b003e.jpg?v=1770598089","url":"https:\/\/plgautomation.com\/products\/westinghouse-electric-m331b-mechanical-interlock","provider":"PLG Automation ","version":"1.0","type":"link"}