{"product_id":"square-d-a1l320-circuit-breaker","title":"Square D | A1L320 | Circuit Breaker | 20A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003ch2\u003eSquare D A1L320 20A 3-Pole 240V Circuit Breaker\u003c\/h2\u003e\n\u003cp\u003eEngineered for reliability in maintenance, retrofit, and replacement projects, the Square D A1L320 is a 20-amp, 3-pole circuit breaker designed to protect 240-volt circuits in today’s demanding panels. This part is purpose-built for scenarios where exact specifications matter, delivering consistent performance when it’s time to upgrade or refresh aging protection devices.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number A1L320\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy a 3-Pole 240V Breaker Matters\u003c\/h3\u003e\n\u003cp\u003eIn multi-wire or three-phase electrical environments, a 3-pole breaker disconnects all live conductors simultaneously. This coordinated shutoff enhances safety, reduces arc risk, and protects linked equipment on 240V circuits—an essential feature for motors, compressors, and other heavy loads commonly found in commercial or industrial setups.\u003c\/p\u003e \u003ch3\u003eIdeal Use Cases\u003c\/h3\u003e\n\u003cp\u003e• Replacement for damaged or worn-out breakers in compatible Square D panels. \u003cem\u003eMaintenance, retrofit, and replacement\u003c\/em\u003e projects benefit from a part that matches the original specifications, minimizing compatibility issues.\u003c\/p\u003e\n\u003cp\u003e• Upgrading legacy panels to ensure proper protection for 240V circuits that require a three-pole configuration. \u003c\/p\u003e \u003ch3\u003eImportant Compatibility Notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings for your specific panel. The A1L320 reference is the most reliable indicator of compatibility, helping you avoid mismatches in trip characteristics, breaker style, and panel bus connection.\u003c\/p\u003e \u003ch3\u003ePractical Installation Insights\u003c\/h3\u003e\n\u003cp\u003ePower down the panel and follow all manufacturer torque recommendations for terminal connections. Confirm your panel is rated for 240V circuits and that the three-pole configuration aligns with the intended load. If you’re replacing an existing breaker, double-check that the carrier style and bus interface match your panel model to ensure secure mounting and proper operation.\u003c\/p\u003e \u003ch3\u003eDistinctive Value\u003c\/h3\u003e\n\u003cp\u003eUnlike generic replacements, the Square D A1L320 is purpose-mitted for precise trip curves and enduring construction within Square D ecosystems. Its design supports reliable protection for critical loads on 240V services, delivering predictable performance across all three poles and helping maintain uptime in mission-critical applications.\u003c\/p\u003e \u003cp\u003eReady to secure your 240V circuitry with a trusted, compatible Square D solution? The A1L320 is the clear choice for accurate compatibility, dependable protection, and straightforward retrofit or replacement projects.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426645069986,"sku":"A1L320","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/square-d-a1l320-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}