{"product_id":"siemens-eh2b040-circuit-breaker","title":"Siemens | EH2B040 | Circuit Breaker | 40A | 2-Pole | 480V | 14kA","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens EH2B040 Circuit Breaker — a purpose-built safety device designed for reliable protection in industrial and commercial electrical systems. With a 40-amp rating, a 2-pole design, 480-volt operation, and a robust 14kA interrupting capacity, this breaker delivers precise protection for feeders and equipment in demanding environments.\u003c\/p\u003e \u003cp\u003eWhy choose EH2B040?\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eOfficial Siemens part number EH2B040 ensures exact fit, electrical characteristics, and compatibility with Siemens panels and compatible enclosures.\u003c\/li\u003e \u003cli\u003eHigh fault-current protection: 14kA interrupting rating provides robust clearing of faults, reducing downstream damage and downtime.\u003c\/li\u003e \u003cli\u003eCompact 2-pole design simplifies wiring and mounting in tighter spaces while protecting two hot legs with a common trip.\u003c\/li\u003e \u003cli\u003e480V operation makes it suitable for common industrial distribution systems and equipment fed at higher voltages.\u003c\/li\u003e \u003cli\u003eMaintenance, retrofit, and replacement ready: specifically recommended for upgrades or replacements where matching specs are required.\u003c\/li\u003e \u003cli\u003eClear compatibility guidance: the part number EH2B040 is the best reference for matching your current panel or equipment configuration; verify fit and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat problems does this solve?\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilitates quick replacement of a failed breaker in Siemens-built or compatible electrical systems to minimize downtime.\u003c\/li\u003e \u003cli\u003eEnsures protective device matches existing electrical ratings and trip characteristics to maintain proper system protection coordination.\u003c\/li\u003e \u003cli\u003eProvides a reliable spare for planned maintenance, reducing the risk of extended outages.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacility managers, electricians, and OEM technicians performing maintenance on Siemens-compatible panels.\u003c\/li\u003e \u003cli\u003eRetrofits where upgrading to compatible trip characteristics or higher fault-current protection is necessary.\u003c\/li\u003e \u003cli\u003eNew installations within 480V distributed power networks requiring a 2-pole, 40A protective device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and care tips:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, confirm fit and ratings against your panel labeling and existing breakers; the EH2B040 reference helps ensure compatibility.\u003c\/li\u003e \u003cli\u003eDuring installation, shut off main power and follow standard electrical safety practices; use insulated tools and verify voltage with a tester before handling connections.\u003c\/li\u003e \u003cli\u003eKeep a spare EH2B040 on hand for routine maintenance; proper documentation with the part number makes future replacements straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEngineered for reliable protection and long service life in demanding environments, the Siemens EH2B040 is a dependable choice for safeguarding your 480V circuits while simplifying upgrades, maintenance, and replacements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424421761186,"sku":"EH2B040","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-eh2b040-circuit-breaker-40a-2-pole-480v-14ka-877.webp?v=1789356394","url":"https:\/\/www.ampstate.com\/products\/siemens-eh2b040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}