{"product_id":"square-d-nenl34020-circuit-breaker","title":"Square D | NENL34020 | Circuit Breaker | 20A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D NENL34020 Circuit Breaker\u003c\/strong\u003e is a purpose-built 20A, 3-pole device designed for demanding 480V, three-phase electrical environments. Built to support maintenance, retrofit, and replacement projects, this breaker ensures reliable overcurrent protection while preserving the integrity of your existing Square D panel infrastructure.\u003c\/p\u003e \u003cp\u003eWith a \u003cstrong\u003e20A\u003c\/strong\u003e amperage rating across \u003cstrong\u003e3 poles\u003c\/strong\u003e and a maximum operating voltage of \u003cstrong\u003e480V\u003c\/strong\u003e, this breaker is ideal for mid-range protection in industrial control panels, distribution panels, and machinery feeds that rely on stable, three-phase power. Its robust construction is engineered to handle frequent on\/off cycling and the rugged demands of commercial and light industrial applications.\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: 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference\u003c\/strong\u003e: NENL34020\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose this model?\u003c\/strong\u003e The NENL34020 is a precise fit for systems that specify the NENL-series or require the exact part number for compatibility. Its three-pole arrangement provides synchronized protection across all phases, reducing the risk of unbalanced faults in 480V distribution schemes. This makes it particularly well-suited for retrofit projects where maintaining the original protection scheme is critical and where downtime needs to be minimized by ensuring a straightforward replacement.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e include upgrading older 3-phase installations, replacing a failed breaker in manufacturing lines, and refreshing protective devices in industrial control cabinets that operate at 480V. It's a smart choice for technicians who need a reliable, specification-matched component that aligns with existing wiring, panel labeling, and safety requirements.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant compatibility note\u003c\/strong\u003e: Confirm fit and ratings before ordering. The part number (NENL34020) is the best reference for ensuring compatibility with your panel and system. If your documentation lists this exact reference, you’re likely selecting a faithful replacement that maintains original protection characteristics and trip behavior.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical considerations for installation and operation\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure power is fully disconnected and the panel is de-energized before replacement.\u003c\/li\u003e \u003cli\u003eVerify that the panel and breaker ratings match (20A, 3-Pole, 480V) and that the physical form factor aligns with the enclosure.\u003c\/li\u003e \u003cli\u003eConsult your equipment manuals for any torque specifications and terminal conductor sizing applicable to your installation.\u003c\/li\u003e \u003cli\u003eStore and handle the breaker in a clean, dry environment to prevent corrosion or contamination of contacts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426833027234,"sku":"NENL34020","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-nenl34020-circuit-breaker-20a-3-pole-480v-411.webp?v=1789630454","url":"https:\/\/www.ampstate.com\/products\/square-d-nenl34020-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}