{"product_id":"hja36040","title":"Square D HJA36040 - 40A, 3-Pole, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA36040 40A, 3-Pole Circuit Breaker — a purpose-built solution for reliable, fail-safe protection in demanding electrical environments. Built to shield your critical equipment from overcurrent, this breaker delivers consistent performance in the most active distribution setups.\u003c\/p\u003e \u003cp\u003eDesigned for industrial, commercial, and OEM applications, this 3-pole breaker is ideal for panelboards, switchboards, and control panels where dependable protection and safe operation are non-negotiable. Its 40-amp rating provides a precise balance between protecting wiring and enabling smooth startup of connected loads.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreaker type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Suitable for panelboards, switchboards, control panels, distribution panels, and motor control centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat makes this Square D device stand out is its three-phase configuration, which ensures uniform protection across all conductors in a 3-phase system. In motor control centers and other multi-phase applications, a single 3-pole breaker simplifies wiring, aligns with standard three-phase loads, and helps maintain balanced protection. This translates to reduced risk of phase imbalances, minimized downtime after faults, and easier maintenance planning.\u003c\/p\u003e \u003cp\u003eUse cases you’ll encounter in the field include protecting three-phase motors, conveyors, pumps, fans, HVAC units, and other industrial equipment. In commercial settings, it can safeguard machinery in processing lines and automated systems. For OEMs, the HJA36040 provides a reliable, drop-in option that aligns with Square D panel designs and MCC configurations, helping you deliver safer, compliant machines faster.\u003c\/p\u003e \u003cp\u003eInstallation and operation are straightforward: select a 3-pole, 40A circuit breaker compatible with your Square D panel infrastructure, ensure proper panel allocation for three-phase protection, and apply standard commissioning practices to verify correct tripping and restoration behavior. When a fault occurs, you’ll enjoy clear isolation of the affected circuit, protecting both wiring and equipment from damage.\u003c\/p\u003e \u003cp\u003eChoose the Square D HJA36040 for robust, field-proven overcurrent protection that keeps critical systems online and performing at their best. It’s a practical, reliable choice for professionals who demand consistency, safety, and easy integration across panelboards, switchboards, and control panels in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default","offer_id":46390727639202,"sku":"HJA36040","price":1329.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_5b21351d-130f-4863-94cf-729c72f3e734.png?v=1765379375","url":"https:\/\/www.ampstate.com\/products\/hja36040","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}