{"product_id":"eaton-wms1b10-10a-1p-277v-circuit-breaker","title":"Eaton WMS1B10 10A 1P 277V Circuit Breaker, Plug-On | AmpState","description":"\u003cdiv\u003eThe Eaton WMS1B10 is a compact, plug-on, single-pole circuit breaker designed to protect circuits within panelboards, load centers, and electrical distribution systems. With a 10-amp rating and a 277-volt operating specification, this device is built to deliver reliable, straightforward overcurrent protection in commercial and light industrial environments. Its plug-on design means quick, secure installation that helps minimize panel downtime during replacements or upgrades. \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e WMS1B10\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 10 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1 Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Plug-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cp\u003eThis WMS1B10 single-pole breaker is purpose-built for panelboards, load centers, and distribution panels where dependable short-circuit and overload protection is essential. Its plug-on design simplifies installation, enabling faster replacements and easier maintenance in busy electrical rooms. The 277V rating makes it suitable for commercial lighting and power distribution scenarios common in office buildings, retail spaces, and other facilities that rely on robust, straightforward protection for each branch circuit.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReplacement projects where the BOM must stay aligned with the original part number (WMS1B10) to ensure compatibility with existing enclosures and bus arrangements.\u003c\/li\u003e \u003cli\u003eStocking spares in maintenance inventories to minimize downtime when a circuit breaker trips or fails.\u003c\/li\u003e \u003cli\u003eRetrofits or upgrades of panelboards and load centers that require a plug-on, 1P 10A 277V protection device.\u003c\/li\u003e \u003cli\u003eNew installations in commercial spaces where a reliable, easily installed breaker is part of a broader distribution strategy.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical considerations and tips\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm that your equipment matches the WMS1B10’s plug-on, 1-pole, 277V design to ensure seamless fit. The plug-on format is designed for straightforward snap-in installation, reducing complexity during panel work. If you’re unsure about compatibility with a specific Eaton panel or your existing BOM, AmpState offers assistance to verify fit and quarterback the replacement process.\u003c\/p\u003e \u003ch2\u003eBuying with confidence\u003c\/h2\u003e\n\u003cp\u003eAmpState stocks the Eaton WMS1B10 10A 1P 277V Circuit Breaker for quick access when you’re updating or maintaining electrical systems. If you need help matching a part number or confirming compatibility, simply reach out—the AmpState team will help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413758922914,"sku":"WMS1B10","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/eaton-wms1b10-10a-1p-277v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}