{"product_id":"square-d-hll36040-40a-600v-3-pole-circuit-breaker","title":"Square D HLL36040 - 40 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDesigned for dependable branch circuit protection, the Square D HLL36040 40A, 600V, 3-pole molded case circuit breaker delivers reliable overcurrent and short-circuit protection in panelboards and load centers. This 3-pole unit from Square D is built for durability in residential, commercial, and light industrial settings, combining space efficiency with precise protection performance.\u003c\/p\u003e \u003ch2\u003eKey advantages that set it apart\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, space-saving design:\u003c\/strong\u003e The molded case format fits tighter panel layouts, freeing space for additional circuits in your panelboard or load center.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip for reliable protection:\u003c\/strong\u003e The combination of thermal overload sensing and instantaneous magnetic trip ensures stable, repeatable protection across a range of loads and ambient conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration for balanced protection:\u003c\/strong\u003e Ideal for 3-phase feeders or 3-wire systems, helping protect motors and equipment from uneven load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible:\u003c\/strong\u003e Designed for seamless integration with matching Square D OEM load centers and panelboards, ensuring dependable fit and performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnd-to-end protection at 600V:\u003c\/strong\u003e Rated for up to 600V, making it suitable for commercial and light industrial circuits while meeting industry safety standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D (Schneider Electric)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HLL36040\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePerfectly suited for\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eThree-phase feeders in small to mid-size commercial installations, such as storefronts, offices, and service rooms.\u003c\/li\u003e \u003cli\u003eMotor and equipment protection for light industrial applications, including HVAC controls and conveyor systems.\u003c\/li\u003e \u003cli\u003eResidential and commercial panelboards where space efficiency matters and reliable short-circuit protection is required.\u003c\/li\u003e \u003cli\u003eAny panel that requires a compatible, OEM-grade 3-pole breaker with a clear 40A rating and 600V capability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cp\u003eTo ensure optimal performance, pair the HLL36040 with matching Square D OEM load centers and panelboards. Verify that your system voltage aligns with the 600V rating and that a 40A protection level matches your circuit requirements. Follow standard electrical safety practices during installation, and refer to the panelboard manufacturer’s torque specs for terminal connections to maintain reliable protection characteristics over time.\u003c\/p\u003e \u003ch2\u003eWhat problems does it solve?\u003c\/h2\u003e\n\u003cp\u003eThis 3-pole molded case breaker provides a reliable, repeatable safeguard against overloads and short circuits for three-phase or three-wire configurations. By combining a compact form with a robust thermal-magnetic trip, it reduces nuisance trips in varying temperatures and load conditions while ensuring critical equipment—like motors and control circuits—receives timely, coordinated protection within compliant 600V systems.\u003c\/p\u003e \u003cp\u003eAvailable through AmpState, the Square D HLL36040 stands out for panel-space efficiency, precise protection, and OEM-grade compatibility—delivering a dependable solution for electricians and facility managers who demand consistent performance in diverse environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355299467426,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_5c4c842f-8957-4834-8e3c-e512feb126a0.png?v=1764691057","url":"https:\/\/www.ampstate.com\/products\/square-d-hll36040-40a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}