{"product_id":"abb-s202-k1","title":"ABB S202-K1 1A 2-Pole 277 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the ABB S202-K1 1 A 2-Pole 277 V Circuit Breaker — a compact, dependable protection solution built for commercial and light-industrial electrical systems. With a 2-pole configuration and a precise 1 A current rating, this ABB breaker delivers reliable, targeted protection for low-load circuits while thriving in 277 V distribution environments. The S202-K1 is designed to work seamlessly with protection and metering setups that rely on potential transformers, making it a smart choice for modern panels and control gear.\u003c\/p\u003e \u003ch3\u003eKey specifications and standout features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e S202-K1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 1 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 277 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePotential transformer compatibility:\u003c\/strong\u003e designed to integrate with monitoring and protection schemes that use potential transformers for accurate fault detection and measurement\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy it matters for your installation\u003c\/h3\u003e\n\u003cp\u003eChoosing a two-pole breaker like the S202-K1 ensures both conductors in a circuit are disconnected simultaneously, providing safer de-energization for equipment such as lighting gear, control panels, and small motors in 277 V networks. The 1 A rating is ideal for protecting low-load feeders and communication or sensing circuits where precise interruption is more important than high current capacity. By aligning with potential transformer-based monitoring, this breaker supports reliable fault indication and accurate metering in modern electrical rooms.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e277 V distribution panels in commercial buildings (lighting, HVAC control, signage, small machinery)\u003c\/li\u003e \u003cli\u003eLow-load feeders and sensing circuits that require clean, predictable tripping\u003c\/li\u003e \u003cli\u003ePanels and switchgear paired with protection relays or metering systems that utilize potential transformers\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure the breaker is installed in a compatible enclosure and tightened to manufacturer torque specifications for secure terminations.\u003c\/li\u003e \u003cli\u003eVerify that your circuit’s load stays within the 1 A rating to avoid nuisance trips and ensure reliable protection.\u003c\/li\u003e \u003cli\u003ePair with appropriate conductors rated for 277 V operation and maintain clear labeling in the panel for quick identification during maintenance.\u003c\/li\u003e \u003cli\u003eFor systems that rely on potential transformer-based monitoring, confirm electrical characteristics align with your protection and metering scheme to maximize fault visibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn summary, the ABB S202-K1 1 A 2-Pole 277 V Circuit Breaker offers precise, dependable protection tailored for 277 V networks and low-load circuits, with thoughtful compatibility for potential transformer monitoring. It’s an intentionally designed choice for professionals who demand reliable isolation, straightforward installation, and peace of mind in commercial electrical layouts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46423147872418,"sku":"S202-K1","price":175.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/abb-s202-k1","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}