{"product_id":"very-rare-gte-sylvania-qb2420-amp-2-pole-zinsco-type-circuit-breaker","title":"Zinsco QB2420-Amp 2-Pole Zinsco-Type Circuit Breaker Sylvania QB2420A","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"106\" data-end=\"122\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"123\" data-end=\"626\"\u003eThe Zinsco QB2420-A is a 20 Amp, 2-pole molded case circuit breaker designed for use in Zinsco \/ GTE Sylvania panelboards. It operates on 240V systems and features a thermal-magnetic trip mechanism that \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003eprotects circuits\u003c\/a\u003e from overloads and short circuits. This breaker belongs to the QB24 series and uses a bolt-on mounting design, ensuring a secure connection to the panel bus. It is often labeled as a “Zinsco-type” breaker and is considered rare due to limited availability in the surplus market.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"628\" data-end=\"645\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"646\" data-end=\"1046\"\u003eThe Zinsco QB2420-A breaker is commonly used in residential and light commercial electrical systems for 240V branch circuits such as small HVAC units, water heaters, and dedicated appliance loads requiring 20A protection. It is installed in Zinsco bolt-on panels typically found in older electrical systems and is mainly used today for maintenance or replacement of existing equipment rather than new installations.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1048\" data-end=\"1077\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1078\" data-end=\"1754\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania\u003cbr data-start=\"1115\" data-end=\"1118\"\u003e• Model \/ Part Number: QB2420-A\u003cbr data-start=\"1149\" data-end=\"1152\"\u003e• Product Type: Molded Case Circuit Breaker (Bolt-On)\u003cbr data-start=\"1205\" data-end=\"1208\"\u003e• Poles: 2-Pole \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1261\" data-end=\"1264\"\u003e• Current Rating: 20 Amps \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1327\" data-end=\"1330\"\u003e• Voltage Rating: 240 VAC \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1393\" data-end=\"1396\"\u003e• Mounting: Bolt-on (QB series) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1465\" data-end=\"1468\"\u003e• Interrupt Rating: ~10 kAIC @ 240V \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1541\" data-end=\"1544\"\u003e• Trip Type: Thermal-magnetic (LI) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1616\" data-end=\"1619\"\u003e• Phase: Single-phase \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1678\" data-end=\"1681\"\u003e• Status: Discontinued \/ obsolete \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1761\" data-end=\"1785\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1786\" data-end=\"1932\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/square-d-type-qob220-amp-240-v-2-pole-circuit-breaker?_pos=1\u0026amp;_psq=QOB220\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eSquare D QOB220 2-Pole 20A Bolt-On Circuit Breaker\u003c\/a\u003e\u003cbr data-start=\"1838\" data-end=\"1841\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/siemens-bqd220-480y-277v-2p-20a-ciecuit-breaker?_pos=2\u0026amp;_psq=BQD220\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eSiemens BQD220 2-Pole 20A Bolt-On Breaker\u003c\/a\u003e\u003cbr data-start=\"1884\" data-end=\"1887\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/eaton-bab2020ht-bab-thermal-magnetic-circuit-breaker-240v-20a-2-pole-bolt-on?_pos=4\u0026amp;_psq=BAB2020H\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eEaton BAB2020H 2-Pole 20A Bolt-On Breaker\u003c\/a\u003e\u003c\/p\u003e","brand":"Zinsco","offers":[{"title":"New","offer_id":51734996812078,"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_6d9fb5d3-820c-4d7c-aa1c-3214e23987b9.jpg?v=1770608043","url":"https:\/\/plgautomation.com\/products\/very-rare-gte-sylvania-qb2420-amp-2-pole-zinsco-type-circuit-breaker","provider":"PLG Automation ","version":"1.0","type":"link"}