{"product_id":"zinsco-type-q-24-q243040-3-pole-40-amp-240v-circuit-breaker-ak","title":"Zinsco Type Q-24 Q243040 3 Pole 40 Amp 240V Circuit Breaker AK","description":"\u003ch3 data-end=\"121\" data-start=\"105\" data-section-id=\"17lc1ru\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-end=\"611\" data-start=\"122\"\u003eThe Zinsco Q243040 (Type Q-24, “AK” variant) is a 3-pole 40 Amp molded case circuit breaker designed for legacy Zinsco \/ GTE Sylvania panelboards. It operates at 240V and uses a thermal-magnetic trip mechanism to protect three-phase circuits from overloads and short circuits. This breaker is typically a plug-in or bolt-on style (depending on panel type) and was part of the Zinsco Q-series, now discontinued. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"630\" data-start=\"613\" data-section-id=\"5ms9th\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-end=\"1128\" data-start=\"631\"\u003eThe Zinsco Q243040 breaker is widely used in industrial and commercial three-phase \u003ca href=\"https:\/\/plgautomation.com\/collections\/networking-communication\"\u003eelectrical systems\u003c\/a\u003e, including \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003emotor control\u003c\/a\u003e panels, distribution boards, and machinery circuits requiring 40A protection. It serves as a branch or feeder breaker for equipment such as pumps, compressors, and light industrial loads. Due to its legacy design, it is now obsolete and typically sourced as refurbished or surplus, with modern replacements often recommended. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1159\" data-start=\"1130\" data-section-id=\"5hg6bl\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-end=\"1844\" data-start=\"1160\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania \/ Challenger\u003cbr data-end=\"1213\" data-start=\"1210\"\u003e• Model \/ Part Number: Q243040 \/ Q24-3040\u003cbr data-end=\"1257\" data-start=\"1254\"\u003e• Product Type: Molded Case Circuit Breaker\u003cbr data-end=\"1303\" data-start=\"1300\"\u003e• Poles: 3-Pole\u003cbr data-end=\"1321\" data-start=\"1318\"\u003e• Current Rating: 40 Amps \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1387\" data-start=\"1384\"\u003e• Voltage Rating: 240 VAC \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1453\" data-start=\"1450\"\u003e• Interrupt Rating: ~10 kAIC @ 240V \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1529\" data-start=\"1526\"\u003e• Trip Type: Thermal-magnetic (LI – long-time \u0026amp; instantaneous) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1632\" data-start=\"1629\"\u003e• Mounting: Plug-in \/ Bolt-on (panel dependent)\u003cbr data-end=\"1682\" data-start=\"1679\"\u003e• Phase: 3-phase \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003cbr data-end=\"1739\" data-start=\"1736\"\u003e• Status: Obsolete \/ discontinued (surplus or reconditioned only) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"1875\" data-start=\"1851\" data-section-id=\"1cz0398\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-end=\"2022\" data-start=\"1876\"\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-end=\"1931\" data-start=\"1928\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/siemens-bqd340-40-amp-480y-277-vac-3-pole-bqd-bolt-on-circuit-breaker?_pos=5\u0026amp;_psq=BQD340\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eSiemens BQD340 3-Pole 40A Bolt-On Breaker\u003c\/a\u003e\u003cbr data-end=\"1977\" data-start=\"1974\"\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":51735001661742,"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_f1092861-d6f0-42a6-9a4d-82b623b8782e.jpg?v=1770608060","url":"https:\/\/plgautomation.com\/products\/zinsco-type-q-24-q243040-3-pole-40-amp-240v-circuit-breaker-ak","provider":"PLG Automation ","version":"1.0","type":"link"}