{"product_id":"square-d-hll36020aa-circuit-breaker","title":"Square D | HLL36020AA | Circuit Breaker | 20A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D HLL36020AA Circuit Breaker—a purpose-built protection device engineered for reliability in maintenance, retrofit, and replacement projects where exact specifications matter. This is the 20A, 3-Pole, 600V solution that keeps three-phase systems safeguarded with precise coordination.\u003c\/p\u003e \u003cp\u003eKey specifications in practical terms:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20A per pole — balanced protection for each conductor in demanding three-phase loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole — ensures simultaneous interruption of all three lines, enhancing safety in three-phase circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V — suitable for industrial and commercial equipment operating at higher voltages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e HLL36020AA — the best compatibility reference for precise fit and ratings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand trust:\u003c\/strong\u003e Square D — a long-standing standard in reliable electrical protection and panel compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your project\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact fit and dependable performance\u003c\/strong\u003e — using the exact part number minimizes guesswork, reduces field returns, and supports seamless integration into existing Square D installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase safety\u003c\/strong\u003e — a three-pole design provides coordinated disconnection across all lines, which is critical for motors, compressors, and other three-phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigher-voltage readiness\u003c\/strong\u003e — a 600V rating broadens applicability for commercial and industrial panels, allowing you to standardize protection across diverse gear.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases include maintenance and retrofit jobs where you’re upgrading or replacing worn breakers, panel modernization in Square D ecosystems, and upgrades to accommodate three-phase equipment without compromising protection. Before you order, confirm fit and ratings—the HLL36020AA part number is the most reliable reference for compatibility.\u003c\/p\u003e \u003cp\u003eInstallation and safety notes\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProfessional installation is recommended. Always power down the system and follow local electrical codes during replacement or upgrading work.\u003c\/li\u003e \u003cli\u003eCross-check panel requirements and confirm that a 3-Pole, 20A, 600V device matches your panelboard’s specifications and wiring configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426635731106,"sku":"HLL36020AA","price":3889.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hll36020aa-circuit-breaker-20a-3-pole-600v-949.webp?v=1789599568","url":"https:\/\/www.ampstate.com\/products\/square-d-hll36020aa-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}