{"product_id":"zinsco-qfb34150-u-150a-3p-240v","title":"ZINSCO QFB34150 U 150A 3P 240V Molded Case Circuit Breaker","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"109\" data-end=\"125\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"126\" data-end=\"705\"\u003eThe Zinsco QFB34150 U is a 150 Amp, 3-pole molded case circuit breaker designed for use in Zinsco \/ GTE Sylvania panelboards. It operates on 240V three-phase systems and features a thermal-magnetic trip mechanism to \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003eprotect circuits\u003c\/a\u003e from overloads and short circuits. It belongs to the QFB series and uses a bolt-on mounting design, providing a secure electrical and mechanical connection to the panel bus. Standard specifications confirm a 150A rating, 3 poles, and 240V operation with a typical interrupt rating of approximately 10 kAIC. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"707\" data-end=\"724\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"725\" data-end=\"1090\"\u003eThe Zinsco QFB34150 breaker is commonly used in commercial and industrial electrical systems requiring 150A three-phase protection, such as distribution panels, feeder circuits, \u003ca href=\"https:\/\/plgautomation.com\/collections\/drives-motor-control\"\u003emotor control\u003c\/a\u003e centers, and heavy-duty equipment. It is specifically intended for legacy Zinsco bolt-on panelboards and is primarily used today for maintenance or replacement of existing installations.\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=\"1840\"\u003e• Manufacturer: Zinsco \/ GTE Sylvania\u003cbr data-start=\"1159\" data-end=\"1162\"\u003e• Model \/ Part Number: QFB34150 U (QFB24-150-3 equivalent series)\u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• Product Type: Molded Case Circuit Breaker (Bolt-On)\u003cbr data-start=\"1283\" data-end=\"1286\"\u003e• Poles: 3-Pole \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1339\" data-end=\"1342\"\u003e• Current Rating: 150 Amps \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1406\" data-end=\"1409\"\u003e• Voltage Rating: 240 VAC \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1472\" data-end=\"1475\"\u003e• Phase: 3-phase \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1529\" data-end=\"1532\"\u003e• Mounting: Bolt-on (QFB series)\u003cbr data-start=\"1564\" data-end=\"1567\"\u003e• Trip Type: Thermal-magnetic\u003cbr data-start=\"1596\" data-end=\"1599\"\u003e• Interrupt Rating: ~10 kAIC @ 240V \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1672\" data-end=\"1675\"\u003e• Function: Overcurrent and short circuit protection\u003cbr data-start=\"1727\" data-end=\"1730\"\u003e• Status: Obsolete \/ discontinued (typically surplus or reconditioned) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1847\" data-end=\"1871\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1872\" data-end=\"2023\"\u003e• Square D QOB3150 3-Pole 150A Bolt-On Circuit Breaker\u003cbr data-start=\"1926\" data-end=\"1929\"\u003e• Siemens BQD3150 3-Pole 150A Bolt-On Breaker\u003cbr data-start=\"1974\" data-end=\"1977\"\u003e• Eaton BAB3150H 3-Pole 150A Bolt-On Breaker\u003c\/p\u003e","brand":"ZINSCO","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51734986981678,"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_eeed81fa-ada1-4300-b482-7cbea9fc7968.jpg?v=1770608008","url":"https:\/\/plgautomation.com\/products\/zinsco-qfb34150-u-150a-3p-240v","provider":"PLG Automation ","version":"1.0","type":"link"}