{"product_id":"thomas-betts-hd323sn-tb-heavy-duty-safety-switch","title":"Thomas \u0026 Betts HD323SN-TB Heavy Duty Safety Switch","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-6a5de32c-fc7c-83ec-a01c-8292e39c970c-67\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a5de32c-fc7c-83ec-a01c-8292e39c970c-67\" data-turn-id-container=\"request-6a5de32c-fc7c-83ec-a01c-8292e39c970c-67\" data-testid=\"conversation-turn-138\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"78832525-daf3-40f2-b164-ac51e3603b9c\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"654\"\u003eThe Thomas \u0026amp; Betts HD323SN-TB Heavy Duty Safety Switch is used to safely disconnect and isolate three-phase electrical power in commercial and industrial electrical distribution systems. Commonly installed in manufacturing facilities, motor control centers, HVAC systems, process equipment, pump stations, and industrial machinery where a reliable service disconnect is required. Maintenance electricians, OEM manufacturers, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this safety switch for new installations, equipment isolation, preventive maintenance, and replacement of existing heavy-duty disconnect \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eswitches\u003c\/a\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"656\" data-end=\"673\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"675\" data-end=\"1254\"\u003eThe Thomas \u0026amp; Betts HD323SN-TB is a heavy-duty, fusible safety switch designed to provide a visible means of disconnect for motors, feeders, branch circuits, and industrial equipment. Its NEMA 1 indoor enclosure is suitable for commercial and industrial applications requiring dependable manual isolation during servicing or emergency shutdown. The switch is commonly used in electrical distribution panels, manufacturing equipment, HVAC systems, conveyors, compressors, and other three-phase installations requiring safe power disconnection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1256\" data-end=\"1285\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1287\" data-end=\"2003\"\u003e• Brand: Thomas \u0026amp; Betts (ABB)\u003cbr data-start=\"1316\" data-end=\"1319\"\u003e• Part Number: HD323SN-TB\u003cbr data-start=\"1344\" data-end=\"1347\"\u003e• Product Type: Heavy Duty Fusible Safety Switch\u003cbr data-start=\"1395\" data-end=\"1398\"\u003e• Series: HD Heavy Duty\u003cbr data-start=\"1421\" data-end=\"1424\"\u003e• Current Rating: 100 A\u003cbr data-start=\"1447\" data-end=\"1450\"\u003e• Voltage Rating: 240 VAC\u003cbr data-start=\"1475\" data-end=\"1478\"\u003e• Number of Poles: 3 Pole\u003cbr data-start=\"1503\" data-end=\"1506\"\u003e• Phase: 3 Phase\u003cbr data-start=\"1522\" data-end=\"1525\"\u003e• Neutral: Factory Installed Neutral (NN1)\u003cbr data-start=\"1567\" data-end=\"1570\"\u003e• Disconnect Type: Fusible\u003cbr data-start=\"1596\" data-end=\"1599\"\u003e• Enclosure Type: NEMA 1 (Indoor)\u003cbr data-start=\"1632\" data-end=\"1635\"\u003e• Mounting: Surface Mount\u003cbr data-start=\"1660\" data-end=\"1663\"\u003e• Application: Service Disconnect and Equipment Isolation\u003cbr data-start=\"1720\" data-end=\"1723\"\u003e• Typical Applications: Motor Control Centers, Industrial Machinery, HVAC Equipment, Manufacturing Facilities, Power Distribution Systems\u003cbr data-start=\"1860\" data-end=\"1863\"\u003e• Manufacturer: ABB Installation Products (Thomas \u0026amp; Betts)\u003cbr data-start=\"1921\" data-end=\"1924\"\u003e• Product Status: Discontinued \/ Obsolete \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2005\" data-end=\"2029\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2031\" data-end=\"2154\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thomas \u0026amp; Betts HD323N-TB\u003cbr data-start=\"2057\" data-end=\"2060\"\u003e• Thomas \u0026amp; Betts HD323NF-TB\u003cbr data-start=\"2087\" data-end=\"2090\"\u003e• Thomas \u0026amp; Betts HD324N-TB\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"THOMAS","offers":[{"title":"New","offer_id":51713997472046,"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_56b29387-1c42-4cb5-8335-fb58d9b07a27.jpg?v=1770413324","url":"https:\/\/plgautomation.com\/products\/thomas-betts-hd323sn-tb-heavy-duty-safety-switch","provider":"PLG Automation ","version":"1.0","type":"link"}