{"product_id":"square-d-hja36125uj","title":"Square D HJA36125UJ 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eHJA36125UJ\u003c\/strong\u003e 125A, 3-Pole, 600 V circuit breaker is engineered to shield powerful 3-phase electrical systems from overloads and short circuits. With a \u003cstrong\u003e125 amp current rating\u003c\/strong\u003e and a \u003cstrong\u003e3-pole design\u003c\/strong\u003e, this unit provides robust, reliable protection in commercial and industrial panels rated up to 600 V. \u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePart Number: \u003cstrong\u003eHJA36125UJ\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eCurrent rating: \u003cstrong\u003e125 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePoles: \u003cstrong\u003e3\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage rating: \u003cstrong\u003e600 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Square D breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eTrusted Square D build quality with a proven trip mechanism designed for consistent performance in demanding environments.\u003c\/li\u003e \u003cli\u003eThree-pole configuration simplifies wiring and coordination for 3-phase systems, reducing installation time and potential miswiring.\u003c\/li\u003e \u003cli\u003e600 V maximum rating makes it suitable for a wide range of industrial and commercial applications where medium-voltage protection is required.\u003c\/li\u003e \u003cli\u003eDesigned for straightforward replacement in compatible Square D distribution panels, helping maintain system reliability with minimal downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtection for 3-phase motors, compressors, conveyors, and HVAC equipment in manufacturing facilities and large commercial spaces.\u003c\/li\u003e \u003cli\u003eMain or branch circuit protection in service panels that distribute 3-phase power within 600 V systems.\u003c\/li\u003e \u003cli\u003eReplacement part for aging or upgraded Square D installations, helping you maintain consistent circuit protection standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to expect in daily use\u003c\/h3\u003e\n\u003cp\u003eWhen a fault or overload occurs, this circuit breaker interrupts current flow quickly to prevent damage to wiring and connected equipment. Its 3-pole design ensures synchronized protection across all phases, helping guard against imbalances and potential circuit faults. This makes it a dependable choice for environments where uptime and safety are paramount.\u003c\/p\u003e \u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure compatibility with your panel model and system voltage before installation.\u003c\/li\u003e \u003cli\u003eFollow manufacturer guidelines for mounting and wiring, and use appropriate tools to avoid damaging terminals.\u003c\/li\u003e \u003cli\u003eSchedule periodic inspections to verify the integrity of connections and confirm the breaker’s responsive operation.\u003c\/li\u003e \u003cli\u003eKeep the part number \u003cstrong\u003eHJA36125UJ\u003c\/strong\u003e available for reference during maintenance or replacement planning.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the \u003cstrong\u003eSquare D HJA36125UJ\u003c\/strong\u003e for dependable 3-phase protection that aligns with industrial standards and supports safe, efficient power distribution up to 600 V. Add this 125 A, 3-Pole breaker to your panel today to reinforce your electrical safety and system reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423562551458,"sku":"HJA36125UJ","price":8686.0,"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-hja36125uj","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}