{"product_id":"square-d-khl36090-circuit-breaker","title":"Square D | KHL36090 | Circuit Breaker | 90A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D KHL36090 circuit breaker is a purpose-built solution for safeguarding three-phase, 600V electrical systems. Designed with maintenance, retrofit, and replacement projects in mind, this 90A, 3-pole unit delivers dependable interruption when faults occur, helping keep equipment and personnel safe while minimizing downtime.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 90A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: KHL36090\u003c\/li\u003e \u003cli\u003eType: Circuit Breaker (Square D)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets the KHL36090 apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eExact compatibility reference: The part number KHL36090 is the most reliable reference when matching breakers to your panel or distribution setup. Always confirm fit and ratings before ordering to ensure seamless installation.\u003c\/li\u003e \u003cli\u003eThree-pole protection for 3-phase systems: By interrupting all three conductors simultaneously, this unit reduces imbalance risk and limits arc exposure, a critical factor in industrial and commercial environments.\u003c\/li\u003e \u003cli\u003eDesigned for retrofit and panel upgrades: Built to slot into Square D panel families that accept KHL-series devices, simplifying replacements and refurbishments without extensive rewiring.\u003c\/li\u003e \u003cli\u003eRobust construction with proven reliability: Engineered for consistent performance in everyday operational conditions, delivering dependable overcurrent protection to safeguard downstream equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance or retrofit projects in manufacturing floors, production lines, and process equipment where a 90A, 3-pole, 600V breaker is required.\u003c\/li\u003e \u003cli\u003eReplacement of aging or failed breakers in existing Square D panelboards that specify KHL-series devices.\u003c\/li\u003e \u003cli\u003eNew installations in facilities with three-phase 600V distribution feeders needing reliable fault interruption and quick restoration.\u003c\/li\u003e \u003cli\u003eProtecting motors, transformers, and other high-demand loads that operate on 3-phase power, helping to prevent cascading outages from a single fault.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for purchasing and installation\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, verify that your panel accepts KHL-series breakers and that the 90A 3-pole 600V rating aligns with the circuit you intend to protect.\u003c\/li\u003e \u003cli\u003eKeep the part number KHL36090 on hand as the definitive reference for compatibility with your Square D panel and configuration.\u003c\/li\u003e \u003cli\u003eFollow standard lockout\/tagout procedures during installation, and ensure proper torque on terminal connections to maintain reliable contacts and trip performance.\u003c\/li\u003e \u003cli\u003eLabel the protective device clearly in the panel schedule to aid future maintenance and inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D KHL36090, you’re choosing a trusted, three-phase protection solution that aligns with real-world maintenance needs and retrofit projects. Its 90A rating and 3-pole design provide targeted protection for 600V systems, helping you minimize downtime and extend the life of critical equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424427659426,"sku":"KHL36090","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-khl36090-circuit-breaker-90a-3-pole-600v-304.webp?v=1789358172","url":"https:\/\/www.ampstate.com\/products\/square-d-khl36090-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}