{"product_id":"square-d-hjf36040-circuit-breaker","title":"Square D | HJF36040 | Circuit Breaker | 40A | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJF36040 circuit breaker—a purpose-built protective device engineered for reliability in demanding electrical environments. With a 40-amp rating and a 600-volt maximum, this breaker is designed to safeguard circuits in panels and enclosures that require precise Square D specifications. The part number HJF36040 is your most reliable reference for compatibility, making it ideal for maintenance, retrofit, and replacement projects where exact matching matters.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number HJF36040\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this model? It’s purpose-built to fit Square D systems that demand strict adherence to a 40A\/600V profile. Using the exact part number minimizes the guesswork during replacements and retrofits, helping you maintain system protection without compromising electrical characteristics.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance or service work on existing Square D panels and equipment that specify HJF36040\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading or replacing an older breaker with a matching 40A\/600V spec\u003c\/li\u003e \u003cli\u003eSpare parts inventory for field service teams to reduce downtime on critical circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore placing an order, confirm that the breaker’s fit and ratings align with your panel or equipment requirements. The HJF36040 designation is the most dependable guide for compatibility, ensuring that the device’s electrical characteristics match the intended circuit and environment. Handle with a qualified electrician, and verify panel labeling and bus-bar connection requirements to ensure a proper, safe installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426752680098,"sku":"HJF36040","price":2995.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hjf36040-circuit-breaker-40a-600v-205.webp?v=1789616525","url":"https:\/\/www.ampstate.com\/products\/square-d-hjf36040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}