{"product_id":"square-d-mal3660033t1121-600a-3-pole-thermal-magnetic-mccb-with-120vac-uvr-bolt-on-600v","title":"Square D MAL3660033T1121 600A 3 Pole Thermal Magnetic MCCB with 120VAC UVR – Bolt On – 600V","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:849293d2-3466-4f21-8cb2-900d6e41393b-70\" data-is-intersecting=\"true\"\u003e\n\u003cdiv class=\"relative w-full overflow-visible\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:849293d2-3466-4f21-8cb2-900d6e41393b-70\" data-turn-id-container=\"request-WEB:849293d2-3466-4f21-8cb2-900d6e41393b-70\" data-testid=\"conversation-turn-56\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"df69e3bf-1fef-40e7-8c5a-4ccb9177109d\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"140\" data-end=\"713\"\u003eThe \u003cstrong data-start=\"144\" data-end=\"223\"\u003eSquare D MAL3660033T1121 600A 3 Pole Thermal Magnetic MCCB – Bolt On – 600V\u003c\/strong\u003e is a high-performance molded case circuit breaker designed for reliable protection and control in industrial and commercial power distribution systems. Built on the MAL frame style with a thermal magnetic non-interchangeable trip unit, it delivers dependable overload and short-circuit protection for heavy-duty applications. This configuration includes a 120VAC undervoltage release (UVR), which enhances system safety by automatically tripping the breaker during voltage loss conditions.\u003c\/p\u003e\n\u003ch1 data-section-id=\"1u9eso3\" data-start=\"720\" data-end=\"746\"\u003eProduct Specifications\u003c\/h1\u003e\n\u003cul data-start=\"747\" data-end=\"1198\"\u003e\n\u003cli data-section-id=\"1ii30bw\" data-start=\"747\" data-end=\"766\"\u003eBrand: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"695gah\" data-start=\"767\" data-end=\"793\"\u003eModel: MAL3660033T1121\u003c\/li\u003e\n\u003cli data-section-id=\"1ad8sdh\" data-start=\"794\" data-end=\"823\"\u003eRated Current: 600 Ampere\u003c\/li\u003e\n\u003cli data-section-id=\"1mjvejc\" data-start=\"824\" data-end=\"851\"\u003eNumber of Poles: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"1nybdp9\" data-start=\"852\" data-end=\"921\"\u003eBreaker Type: Thermal Magnetic Molded Case Circuit Breaker (MCCB)\u003c\/li\u003e\n\u003cli data-section-id=\"4edz77\" data-start=\"922\" data-end=\"945\"\u003eMount Type: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"l13uga\" data-start=\"946\" data-end=\"971\"\u003eFrame Type: MAL Frame\u003c\/li\u003e\n\u003cli data-section-id=\"xbwqhm\" data-start=\"972\" data-end=\"1000\"\u003eMaximum Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1ujzgm1\" data-start=\"1001\" data-end=\"1040\"\u003eTrip Unit Type: Non-Interchangeable\u003c\/li\u003e\n\u003cli data-section-id=\"7s34z7\" data-start=\"1041\" data-end=\"1095\"\u003eSpecial Feature: 120VAC Undervoltage Release (UVR)\u003c\/li\u003e\n\u003cli data-section-id=\"1w3ac3n\" data-start=\"1096\" data-end=\"1136\"\u003eStandard Lug Type: Line and Load End\u003c\/li\u003e\n\u003cli data-section-id=\"1v5vjh9\" data-start=\"1137\" data-end=\"1198\"\u003eApplication: Industrial and Commercial Power Distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"6g15vf\" data-start=\"1205\" data-end=\"1233\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cul data-start=\"1234\" data-end=\"1693\"\u003e\n\u003cli data-section-id=\"138nrjj\" data-start=\"1234\" data-end=\"1348\"\u003eInterrupting Capacity:\n\u003cul data-start=\"1263\" data-end=\"1348\"\u003e\n\u003cli data-section-id=\"oydnty\" data-start=\"1263\" data-end=\"1282\"\u003e42 kA @ 240 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1hkc2g9\" data-start=\"1285\" data-end=\"1304\"\u003e30 kA @ 480 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"d5rhc\" data-start=\"1307\" data-end=\"1326\"\u003e22 kA @ 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"oc2ba9\" data-start=\"1329\" data-end=\"1348\"\u003e14 kA @ 250 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4trdf4\" data-start=\"1349\" data-end=\"1384\"\u003eTrip Setting Range: 1500 – 3000\u003c\/li\u003e\n\u003cli data-section-id=\"7lk6kf\" data-start=\"1385\" data-end=\"1426\"\u003eOperating Temperature Reference: 40°C\u003c\/li\u003e\n\u003cli data-section-id=\"3neoa0\" data-start=\"1427\" data-end=\"1485\"\u003eProtection Type: Overload and Short Circuit Protection\u003c\/li\u003e\n\u003cli data-section-id=\"vjhm4u\" data-start=\"1486\" data-end=\"1527\"\u003eUndervoltage Release: 120VAC UVR Coil\u003c\/li\u003e\n\u003cli data-section-id=\"1q1wi2l\" data-start=\"1528\" data-end=\"1583\"\u003eTerminal Configuration: Line and Load End Terminals\u003c\/li\u003e\n\u003cli data-section-id=\"o0hedk\" data-start=\"1584\" data-end=\"1612\"\u003eConnection Type: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"1ak9p1h\" data-start=\"1613\" data-end=\"1654\"\u003eThermal Magnetic Protection Mechanism\u003c\/li\u003e\n\u003cli data-section-id=\"1m5hda8\" data-start=\"1655\" data-end=\"1693\"\u003eHeavy-Duty Industrial Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"amx4xn\" data-start=\"1700\" data-end=\"1723\"\u003eVoltage and Ratings\u003c\/h1\u003e\n\u003cul data-start=\"1724\" data-end=\"2116\"\u003e\n\u003cli data-section-id=\"her84y\" data-start=\"1724\" data-end=\"1768\"\u003eRated Operational Voltage: Up to 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"14jgndi\" data-start=\"1769\" data-end=\"1799\"\u003eDC Voltage Rating: 250 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1v0z2iz\" data-start=\"1800\" data-end=\"1824\"\u003eCurrent Rating: 600A\u003c\/li\u003e\n\u003cli data-section-id=\"lqk5xt\" data-start=\"1825\" data-end=\"1855\"\u003ePole Configuration: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"nprsfd\" data-start=\"1856\" data-end=\"1897\"\u003eInterrupting Rating at 240 VAC: 42 kA\u003c\/li\u003e\n\u003cli data-section-id=\"1c70j52\" data-start=\"1898\" data-end=\"1939\"\u003eInterrupting Rating at 480 VAC: 30 kA\u003c\/li\u003e\n\u003cli data-section-id=\"wqy52n\" data-start=\"1940\" data-end=\"1981\"\u003eInterrupting Rating at 600 VAC: 22 kA\u003c\/li\u003e\n\u003cli data-section-id=\"1ntvyb2\" data-start=\"1982\" data-end=\"2023\"\u003eInterrupting Rating at 250 VDC: 14 kA\u003c\/li\u003e\n\u003cli data-section-id=\"1gofju0\" data-start=\"2024\" data-end=\"2047\"\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli data-section-id=\"i6jvxf\" data-start=\"2048\" data-end=\"2081\"\u003eTemperature Calibration: 40°C\u003c\/li\u003e\n\u003cli data-section-id=\"xwczk0\" data-start=\"2082\" data-end=\"2116\"\u003eControl Voltage (UVR): 120 VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"15cd7p9\" data-start=\"2123\" data-end=\"2139\"\u003eProduct Data\u003c\/h1\u003e\n\u003cul data-start=\"2140\" data-end=\"2579\"\u003e\n\u003cli data-section-id=\"19mqscg\" data-start=\"2140\" data-end=\"2166\"\u003eManufacturer: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"1r85zis\" data-start=\"2167\" data-end=\"2247\"\u003eProduct Condition: New \/ Certified Reconditioned (Depending on Availability)\u003c\/li\u003e\n\u003cli data-section-id=\"u6qeoy\" data-start=\"2248\" data-end=\"2286\"\u003eWarranty: 1 Year In-House Warranty\u003c\/li\u003e\n\u003cli data-section-id=\"z7qc93\" data-start=\"2287\" data-end=\"2316\"\u003eConnection Style: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"yxthh\" data-start=\"2317\" data-end=\"2343\"\u003eFrame Style: MAL Frame\u003c\/li\u003e\n\u003cli data-section-id=\"1bbblqx\" data-start=\"2344\" data-end=\"2425\"\u003eSuitable For: Industrial Panels, Switchboards, and Power Distribution Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1xn51ww\" data-start=\"2426\" data-end=\"2507\"\u003eAccessory Installation: Available at No Additional Cost with Breaker Purchase\u003c\/li\u003e\n\u003cli data-section-id=\"jgicwe\" data-start=\"2508\" data-end=\"2552\"\u003ePackaging: Standard Industrial Packaging\u003c\/li\u003e\n\u003cli data-section-id=\"aq7oow\" data-start=\"2553\" data-end=\"2579\"\u003eCountry of Origin: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"gbcsds\" data-start=\"2586\" data-end=\"2604\"\u003eImportant Note\u003c\/h1\u003e\n\u003cp data-start=\"2605\" data-end=\"3383\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eProduct images are provided for identification purposes only and may not represent the exact configured unit. This model includes a 120VAC undervoltage release (UVR) which trips the breaker when control voltage is lost, enhancing system safety in critical applications. Accessories purchased together with the breaker can be installed according to your required configuration at no additional cost. Installation, operation, and maintenance must only be performed by qualified electrical professionals in accordance with applicable electrical codes and safety standards. Warranty coverage includes repairs, replacement parts, labor, and standard shipping required for recertification, excluding damage caused by misuse, improper installation, or normal operational wear and tear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"New Surplus","offer_id":48394089431289,"sku":"MAL3660033T1121-NS","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"Certified Reconditioned","offer_id":48394089464057,"sku":"MAL3660033T1121-CR","price":2999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/MAL3660033T1121-2.webp?v=1778584904","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-mal3660033t1121-600a-3-pole-thermal-magnetic-mccb-with-120vac-uvr-bolt-on-600v","provider":"My Circuit Breakers","version":"1.0","type":"link"}