{"product_id":"westinghouse-ehb1040-40a-1p-277v-circuit-breaker","title":"Westinghouse EHB1040 40A 1P 277V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse EHB1040\u003c\/strong\u003e is a purpose-built 40A, 1-pole circuit breaker designed for everyday electrical protection in panelboards, load centers, and distributed electrical systems. With a bolt-on mounting style, this breaker is engineered for fast, secure installation in compatible panels, making it a practical choice for both maintenance teams and panel builders who demand dependable performance and exact part-number matches.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand \/ Part:\u003c\/strong\u003e Westinghouse EHB1040\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 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\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Circuit protection in panelboards, load centers, and electrical distribution\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e From AmpState\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this bolt-on breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient, secure installation:\u003c\/strong\u003e The bolt-on design provides a robust connection to bus systems, reducing the risk of loose connections and ensuring consistent protection across your panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match:\u003c\/strong\u003e Specifically chosen for setups requiring the Westinghouse EHB1040, minimizing guesswork during replacements or stocking for future maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOptimal for 277V systems:\u003c\/strong\u003e Built to handle commercial and industrial distribution where 277V is common, delivering reliable protection for higher-voltage circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable protection for essential circuits:\u003c\/strong\u003e Perfect for critical loads in offices, retail environments, and light industrial spaces where dependable circuit interruption safeguards equipment and personnel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases and who benefits most\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance crews performing routine panel servicing who need a readily identifiable, compatible spare part.\u003c\/li\u003e \u003cli\u003ePanel builders assembling or refurbishing distribution centers, offices, or commercial facilities that run 277V circuits.\u003c\/li\u003e \u003cli\u003eWarehouse operations stocking spare inventory with clear part-number traceability to streamline repairs and reduce downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it compares and practical tips\u003c\/h3\u003e\n\u003cp\u003eCompared to generic equivalents, the Westinghouse EHB1040 emphasizes precise compatibility and easy sourcing through AmpState, helping you avoid mismatched replacements that can delay projects. For best results, ensure your panelboard or load center explicitly accepts a bolt-on, 1-pole, 277V breaker in the EHB family. Keep a labeled spare on hand for rapid swaps during preventive maintenance or fault remediation.\u003c\/p\u003e \u003ch3\u003eAdditional considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eStock planning:\u003c\/strong\u003e Align your inventory with common 277V, 1-pole protections to minimize stockouts in high-demand commercial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSafety and handling:\u003c\/strong\u003e Always power down the panel and follow standard lockout\/tagout procedures before replacing breakers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411094655138,"sku":"EHB1040","price":10.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/westinghouse-ehb1040-40a-1p-277v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}