{"product_id":"zinsco-qb24-u-20a-2p-240v","title":"ZINSCO QB24-U 20A 240V 2-Pole Molded Case Circuit Breaker QB24U","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"105\" data-end=\"121\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"122\" data-end=\"553\"\u003eThe Zinsco QB24-U (commonly referenced as QB24-2020 or QB2420 variants) is a 20 Amp, 2-pole molded case circuit breaker designed for use in Zinsco \/ GTE Sylvania panelboards. It operates on 240V systems and utilizes a thermal-magnetic trip mechanism to provide \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003eprotection against overloads\u003c\/a\u003e and short circuits. This breaker belongs to the QB24 series and features a bolt-on mounting design for a secure connection to the panel bus.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"555\" data-end=\"572\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"573\" data-end=\"950\"\u003eThe Zinsco QB24-U breaker is commonly used in residential and light commercial electrical systems for 240V branch circuits such as small HVAC units, water heaters, pumps, and dedicated appliance loads requiring 20A protection. It is specifically installed in Zinsco bolt-on panels typically found in older electrical systems and is mainly used today for maintenance or replacement purposes.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"952\" data-end=\"981\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"982\" data-end=\"1498\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania \/ Challenger\u003cbr data-start=\"1032\" data-end=\"1035\"\u003e• Model \/ Part Number: QB24-2020 (QB24- U variant)\u003cbr data-start=\"1085\" data-end=\"1088\"\u003e• Product Type: Molded Case Circuit Breaker (Bolt-On)\u003cbr data-start=\"1141\" data-end=\"1144\"\u003e• Poles: 2-Pole\u003cbr data-start=\"1159\" data-end=\"1162\"\u003e• Current Rating: 20 Amps\u003cbr data-start=\"1187\" data-end=\"1190\"\u003e• Voltage Rating: 240 VAC\u003cbr data-start=\"1215\" data-end=\"1218\"\u003e• Mounting: Bolt-on (QB series)\u003cbr data-start=\"1249\" data-end=\"1252\"\u003e• Trip Type: Thermal-magnetic\u003cbr data-start=\"1281\" data-end=\"1284\"\u003e• Interrupt Rating: ~10 kAIC @ 240V\u003cbr data-start=\"1319\" data-end=\"1322\"\u003e• Function: Overcurrent and short circuit protection\u003cbr data-start=\"1374\" data-end=\"1377\" data-is-only-node=\"\"\u003e• Status: Obsolete \/ discontinued (surplus or aftermarket replacements available) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1505\" data-end=\"1529\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1530\" data-end=\"1676\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/square-d-qob220-2-pole-20-amp-120-240v-bolt-on-qob-circuit-breaker?_pos=2\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=\"1582\" data-end=\"1585\"\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=\"1628\" data-end=\"1631\"\u003e• Eaton BAB2020H 2-Pole 20A Bolt-On Breaker\u003c\/p\u003e","brand":"ZINSCO","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51734996418862,"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_f62731a3-632f-42b1-9f5d-83ea4ef56d64.jpg?v=1770608042","url":"https:\/\/plgautomation.com\/products\/zinsco-qb24-u-20a-2p-240v","provider":"PLG Automation ","version":"1.0","type":"link"}