{"product_id":"zinsco-type-q-24-q243040-3-pole-40-amp-240v-circuit-breaker","title":"Zinsco Type Q-24 Q243040 3 Pole 40 Amp 240V Circuit Breaker","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"100\" data-end=\"116\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"117\" data-end=\"606\"\u003eThe Zinsco Q243040 (Type Q-24) is a 3-pole 40 Amp molded case circuit breaker designed for use in legacy Zinsco \/ GTE Sylvania load centers and panelboards. It operates on 240 VAC systems and uses a thermal-magnetic (Magnatrip) trip mechanism to protect circuits from overloads and short circuits. This breaker is typically a plug-in style (Q series) or available in bolt-on variants (QB series) depending on panel configuration. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"608\" data-end=\"625\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"626\" data-end=\"1090\"\u003eThe Q243040 breaker is commonly used in industrial and commercial three-phase \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003eelectrical systems\u003c\/a\u003e, including \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003emotor control\u003c\/a\u003e panels, machinery circuits, and distribution boards requiring 40A protection. It functions as a branch or feeder breaker for equipment such as pumps, compressors, and light industrial loads. These breakers are now obsolete and typically available only as surplus or reconditioned units. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1092\" data-end=\"1121\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1122\" data-end=\"1857\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania \/ Challenger\u003cbr data-start=\"1172\" data-end=\"1175\"\u003e• Model \/ Part Number: Q243040 \/ Q24-3040\u003cbr data-start=\"1216\" data-end=\"1219\"\u003e• Product Type: Molded Case Circuit Breaker\u003cbr data-start=\"1262\" data-end=\"1265\"\u003e• Poles: 3-Pole \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1318\" data-end=\"1321\"\u003e• Current Rating: 40 Amps \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1384\" data-end=\"1387\"\u003e• Voltage Rating: 240 VAC \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1450\" data-end=\"1453\"\u003e• Interrupt Rating: ~10 kAIC @ 240V \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1526\" data-end=\"1529\"\u003e• Trip Type: Thermal-magnetic (LI – long-time \u0026amp; instantaneous) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1629\" data-end=\"1632\"\u003e• Mounting: Plug-in (Q series) \/ Bolt-on (QB series) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1722\" data-end=\"1725\"\u003e• Phase: 3-phase \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1779\" data-end=\"1782\"\u003e• Status: Discontinued \/ obsolete \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1864\" data-end=\"1888\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1889\" data-end=\"2033\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/square-d-qob340-bolt-on-circuit-breaker-40a-3p-240v-black-face?_pos=2\u0026amp;_psq=QOB340\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eSquare D QOB340 3-Pole 40A Bolt-On Circuit Breaker\u003c\/a\u003e\u003cbr data-start=\"1941\" data-end=\"1944\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/siemens-bqd340-u-40a-480v-3p?_pos=1\u0026amp;_psq=BQD340\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eSiemens BQD340 3-Pole 40A Bolt-On Breaker\u003c\/a\u003e\u003cbr data-start=\"1987\" data-end=\"1990\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/eaton-cutler-hammer-bab3040h-40-amp-3-pole-circuit-breaker-bolt-on?_pos=2\u0026amp;_psq=BAB3040H\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eEaton BAB3040H 3-Pole 40A Bolt-On Breaker\u003c\/a\u003e\u003c\/p\u003e","brand":"Zinsco","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51735001334062,"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_95f6b3f3-b2be-400a-8972-e6ea9543a66c.jpg?v=1770608059","url":"https:\/\/plgautomation.com\/products\/zinsco-type-q-24-q243040-3-pole-40-amp-240v-circuit-breaker","provider":"PLG Automation ","version":"1.0","type":"link"}