{"product_id":"square-d-ejb36040-40a-600v-3-pole-bolt-on-circuit-breaker","title":"Square D EJB36040 - 40 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D EJB36040—a reliable, high-performance bolt-on circuit breaker designed to protect your panelboards and loadcenters with precision. With a 40 A rating, 600 V maximum, and a 3-pole configuration, this molded case breaker is built for demanding residential, commercial, and light industrial applications where dependable overcurrent and short-circuit protection is non-negotiable.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, helping maintain consistent electrical contact even in environments with movement or thermal cycling.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding to both overload and short-circuit conditions, helping to minimize nuisance trips and protect wiring and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e supports 3-phase circuits and balanced protection across all poles, making it suitable for a broad range of commercial and light industrial panel setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V rating\u003c\/strong\u003e accommodates higher voltage distributions commonly found in modern electrical systems, expanding its versatility beyond basic residential panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with matching Square D loadcenters and panelboards, ensuring straightforward substitution or expansion without compatibility concerns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable molded case construction\u003c\/strong\u003e for reliable insulation and long service life in everyday panel installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eNew installations or panel upgrades in residential, commercial, and light industrial environments where a 40 A, 3-pole breaker is required.\u003c\/li\u003e \u003cli\u003eBranch circuit protection in service entrances, distribution panels, and subpanels to isolate faults and safeguard conductors.\u003c\/li\u003e \u003cli\u003eMotor control and equipment panels that operate on 3-phase systems up to 600 V, delivering quick, predictable trips when faults occur.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: EJB36040\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Square D EJB36040 means leaning on a legacy of dependable protection and straightforward integration with your existing equipment. It’s a practical, purpose-built solution for safeguarding wiring, preventing equipment damage, and maintaining service continuity across multiple installation scenarios. Order from AmpState today to secure authentic Square D parts designed to meet the demands of real-world electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355214729378,"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_cbbfd447-0831-4681-bf39-0e4ae5a7aaf8.png?v=1764690407","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb36040-40a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}