{"product_id":"square-d-hja36150ua","title":"Square D HJA36150UA 150A 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eProtect essential electrical circuits with confidence using the Square D HJA36150UA 150A 600 V Circuit Breaker. Designed for reliability in demanding commercial and light industrial settings, this specific model delivers precise overcurrent protection for feeders and branch circuits while remaining compatible with Square D panel boards and distribution equipment.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36150UA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand lineage:\u003c\/strong\u003e Square D (a trusted name in electrical protection)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy the HJA36150UA stands out\u003c\/h3\u003e\n\u003cp\u003eWhat sets this circuit breaker apart is its precise 150 A protection threshold paired with a robust 600 V rating, making it ideal for protecting sizable feeders, panelboard circuits, and equipment loads that demand dependable interruption during fault or overload conditions. The dual-mode protection—thermal and magnetic—acts quickly to disconnect power when current exceeds safe levels, reducing the risk of damage, electrical fires, and unplanned downtime.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtecting large branch circuits and feeder lines in commercial electrical rooms\u003c\/li\u003e \u003cli\u003eSafeguarding HVAC drives, motors, and other overhead equipment in industrial settings\u003c\/li\u003e \u003cli\u003eServing as a compatible replacement in Square D panel boards to maintain system reliability\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey benefits in real-world installations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrecise current handling at 150 A helps prevent nuisance trips on normal startup surges\u003c\/li\u003e \u003cli\u003e600 V rating supports a wide range of equipment and control circuits commonly found in commercial facilities\u003c\/li\u003e \u003cli\u003eCompact, rugged construction designed for steady performance in busy electrical environments\u003c\/li\u003e \u003cli\u003eSeamless compatibility with Square D components, supporting straightforward upgrades or replacements\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and maintenance\u003c\/h3\u003e\n\u003cp\u003eFor reliable results, pair the HJA36150UA with panels and bus systems specified by Square D. Always follow manufacturer installation guidelines, verify that the circuit rating matches the load demands, and use proper torque and termination practices to ensure a secure connection. If you’re replacing an existing breaker, confirm the replacement matches the original type and rating to preserve protective coordination within the panel assembly.\u003c\/p\u003e \u003cp\u003eInvest in targeted protection with the Square D HJA36150UA 150A 600 V Circuit Breaker — a deliberate choice for safeguarding critical circuits, reducing downtime, and extending the life of electrical infrastructure. Add it to your cart to secure dependable, industry-standard protection for your system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423557210274,"sku":"HJA36150UA","price":8686.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hja36150ua-150a-600-v-circuit-breaker-630.webp?v=1789314716","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36150ua","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}