{"product_id":"square-d-hlm36040-circuit-breaker","title":"Square D | HLM36040 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003ePowerful protection engineered by Square D, the HLM36040 circuit breaker delivers dependable 40-amp, three-pole protection for 600-volt systems. Designed for maintenance, retrofit, and replacement projects, this unit ensures your three-phase panel stays safe and compliant while handling demanding loads.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 40A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: HLM36040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Square D HLM36040?\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrecise compatibility: The part number HLM36040 is the best reference for matching your existing Square D installation and any retrofit panel that requires a 3-pole, 600V breaker.\u003c\/li\u003e \u003cli\u003eVersatile for maintenance and retrofit: Ideal for upgrading aging panels or replacing a failed unit without compromising system protection.\u003c\/li\u003e \u003cli\u003eRobust design for industrial environments: Built to withstand routine switching and fault conditions in busy electrical rooms, delivering reliable protection when it matters most.\u003c\/li\u003e \u003cli\u003eClear protection for 3-phase circuits: The 3-pole configuration ensures balanced, coordinated protection across all phases in a 600V service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service upgrades for commercial and light industrial panels requiring a 40A, 3-pole, 600V protection device\u003c\/li\u003e \u003cli\u003eRetrofits where existing gear requires HLM36040-compatible trip characteristics\u003c\/li\u003e \u003cli\u003eReplacements for failed breakers in 3-phase 600V service with minimal panel modification\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eOrdering and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore you order, confirm fit and ratings align with your panel labeling. Rely on the part number HLM36040 as the best reference for compatibility, and cross-check with your panel documentation to ensure the 3-pole 600V configuration matches your service. If your panel is designed for 600V three-phase protection and requires a 40A device, this Square D breaker is a precise match.\u003c\/p\u003e \u003cp\u003eSafety note: Always de-energize equipment and follow lockout\/tagout procedures when replacing a circuit breaker, and verify the new device trips properly under simulated faults after installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426369720482,"sku":"HLM36040","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hlm36040-circuit-breaker-40a-3-pole-600v-131.webp?v=1789564994","url":"https:\/\/www.ampstate.com\/products\/square-d-hlm36040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}