{"product_id":"zinsco-challenger-sylvania-hqb243040-50amp-240v-3-pole-bolt-on","title":"ZINSCO HQB243040 50AMP 240V 3 POLE BOLT-ON (CHALLENGER SYLVANIA)","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"440\"\u003eThe Zinsco \/ Challenger \/ GTE Sylvania HQB243040 is a 3-pole 40 Amp bolt-on molded case circuit breaker used in industrial and commercial \u003ca href=\"https:\/\/plgautomation.com\/collections\/networking-communication\"\u003eelectrical distribution systems\u003c\/a\u003e. It provides overcurrent protection for 240V three-phase circuits and is typically installed in Zinsco bolt-on panelboards and switchgear. This breaker is commonly used for protecting \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003emotors\u003c\/a\u003e, machinery, and feeder circuits in legacy systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"442\" data-end=\"459\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"460\" data-end=\"905\"\u003eThe Zinsco HQB243040 breaker is widely used in industrial panels, motor control centers, and three-phase distribution systems where moderate load protection is required. It functions as a branch or feeder breaker for equipment such as pumps, compressors, and small industrial machines. It is part of the Zinsco HQB\/QB series, which is now obsolete and discontinued but still found in older installations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"907\" data-end=\"936\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"937\" data-end=\"1666\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania \/ Challenger\u003cbr data-start=\"987\" data-end=\"990\"\u003e• Model \/ Part Number: HQB243040 \/ QB243040\u003cbr data-start=\"1033\" data-end=\"1036\"\u003e• Product Type: Molded Case Circuit Breaker (Bolt-On)\u003cbr data-start=\"1089\" data-end=\"1092\"\u003e• Poles: 3-Pole\u003cbr data-start=\"1107\" data-end=\"1110\"\u003e• Current Rating: 40 Amps \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1173\" data-end=\"1176\"\u003e• Voltage Rating: 240 VAC \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1239\" data-end=\"1242\" data-is-only-node=\"\"\u003e• Phase: 3-phase \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1296\" data-end=\"1299\"\u003e• Interrupt Rating: ~10 kAIC @ 240V \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1372\" data-end=\"1375\"\u003e• Trip Type: Thermal-magnetic (LI – long-time \u0026amp; instantaneous) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1475\" data-end=\"1478\"\u003e• Mounting: Bolt-on \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1535\" data-end=\"1538\"\u003e• Function: Overcurrent and short circuit protection\u003cbr data-start=\"1590\" data-end=\"1593\"\u003e• Status: Discontinued \/ obsolete \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1673\" data-end=\"1697\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1698\" data-end=\"1823\"\u003e• \u003ca href=\"https:\/\/plgautomation.com\/products\/square-d-qob-qob340-3-pole-40-amp-240v-yellow-circuit-breaker-flawed?_pos=3\u0026amp;_psq=QOB340\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSquare D QOB340 3‑Pole 40A Bolt‑On Breaker\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e• \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSchneider Electric Multi9 3‑Pole 40A Breaker\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-start=\"1779\" data-end=\"1782\"\u003e• \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"whitespace-normal\"\u003eGeneric 40A 3‑Pole Industrial Circuit Breaker\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Zinsco","offers":[{"title":"New","offer_id":51735004414254,"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_5ff583c5-33ce-4bb5-904c-5faa6e23e3f1.jpg?v=1770608071","url":"https:\/\/plgautomation.com\/products\/zinsco-challenger-sylvania-hqb243040-50amp-240v-3-pole-bolt-on","provider":"PLG Automation ","version":"1.0","type":"link"}