{"product_id":"square-d-hja260404aabcsk","title":"Square D HJA260404AABCSK 260404A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA260404AABCSK 260404A 3-Pole 600 V Circuit Breaker—a rugged, three-phase protective device designed to reliably interrupt fault currents and safeguard critical equipment in industrial and commercial electrical systems. Built for demanding environments, this breaker helps keep motors, pumps, and other essential loads running smoothly by isolating faults quickly and cleanly.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HJA260404AABCSK\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel code:\u003c\/strong\u003e 260404A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 260404 A\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this 3-Pole 600 V breaker is a smart choice\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase protection:\u003c\/strong\u003e The 3-pole design protects all phases simultaneously, reducing the risk of dangerous imbalances and phase-to-phase faults in motor and equipment circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-Voltage readiness:\u003c\/strong\u003e With a 600 V rating, it’s suited for a wide range of industrial distribution applications and commercial machinery operating in medium-voltage environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable part identity:\u003c\/strong\u003e The exact fit and designation of HJA260404AABCSK ensure straightforward replacement in compatible Square D installations, helping you minimize downtime during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility signal:\u003c\/strong\u003e This breaker is designed to work within Square D panels and systems that accommodate the HJA-series devices, providing consistent performance with your existing protection scheme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eThree-phase motors in manufacturing lines, conveyors, and processing equipment\u003c\/li\u003e \u003cli\u003ePumps and compressors powering HVAC, water treatment, or industrial cooling systems\u003c\/li\u003e \u003cli\u003eElectrical distribution panels in commercial facilities that require robust, phased protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical considerations and installation tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eVerify that the system’s voltage and load characteristics align with the 600 V rating and the 3-pole configuration before installation.\u003c\/li\u003e \u003cli\u003eWhen replacing an existing breaker, confirm part numbers and panel compatibility to ensure a seamless swap with minimal downtime.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation, and consult your panel’s manufacturer guidance for mounting and terminal torque specifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat makes it stand out\u003c\/h2\u003e\n\u003cp\u003eBeyond basic specs, this Square D circuit breaker emphasizes dependable, straightforward protection for three-phase systems. The HJA260404AABCSK designation reflects a precise, field-replaceable component designed to integrate with established Square D protection strategies, helping maintain system uptime and protect expensive motors and drives from overload and short-circuit events.\u003c\/p\u003e \u003cp\u003eWhether you’re stocking spare parts for industrial maintenance, upgrading a legacy panel, or replacing a worn breaker, the Square D HJA260404AABCSK 260404A 3-Pole 600 V Circuit Breaker is a purpose-built choice for durable, reliable three-phase protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423296213154,"sku":"HJA260404AABCSK","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-hja260404aabcsk","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}