{"product_id":"abb-s203up-k20","title":"ABB S203UP-K20 20A 3-Pole 277 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe ABB S203UP-K20 (Part Number S203UP-K20) is a 20 A, 3-Pole, 277 V circuit breaker designed for three‑phase commercial and light‑industrial electrical systems. Built to protect 277 V distribution networks, it ensures reliable, coordinated interruption across all three phases when overloads or faults occur, helping prevent damage to wiring and connected equipment.\u003c\/p\u003e \u003cp\u003eKey benefits that matter in real-world applications:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBalanced three‑pole protection\u003c\/strong\u003e: isolates all three conductors simultaneously, minimizing phase imbalances and protecting three‑phase circuits from overloads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20 A per pole\u003c\/strong\u003e: precise current rating for common commercial lighting and equipment loads, reducing the risk of nuisance trips while safeguarding wiring.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e277 V compatibility\u003c\/strong\u003e: purpose‑built for installations where 277 V lighting circuits and equipment are standard, delivering dependable performance in office complexes, retail spaces, and industrial facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient panel integration\u003c\/strong\u003e: designed for straightforward drop‑in replacement and easy mounting in compatible distribution panels commonly used in commercial projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEnhanced system reliability\u003c\/strong\u003e: quick fault isolation helps minimize downtime and protects downstream components from damage due to overcurrent events.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho should consider the ABB S203UP-K20?\u003c\/strong\u003e Facilities managers, electrical contractors, and building engineers responsible for 3‑phase 277 V systems that require robust, coordinated protection across all phases. It’s an ideal upgrade or replacement part for panelboards needing a 20 A, 3‑pole, 277 V solution.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for use\u003c\/strong\u003e:\n- Confirm that your panelboard accepts a 3‑pole device with this rating and that the mounting footprint matches your enclosure.\n- Follow the manufacturer's installation instructions and local electrical codes; ensure terminals are torqued to the specified value for a solid connection.\n- Use as part of a coordinated protection scheme with upstream and downstream devices to optimize overall system safety and reliability.\u003c\/p\u003e \u003cp\u003eIn short, the ABB S203UP-K20 20A 3-Pole 277 V Circuit Breaker is engineered to safeguard three‑phase 277 V circuits with dependable protection, seamless panel integration, and tangible, real‑world benefits for everyday electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46423145808034,"sku":"S203UP-K20","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/abb-s203up-k20-20a-3-pole-277-v-circuit-breaker-509.webp?v=1789275144","url":"https:\/\/www.ampstate.com\/products\/abb-s203up-k20","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}