{"product_id":"siemens-ed43b040-40a-3p-480v-circuit-breaker","title":"Siemens ED43B040 40A 3P 480V Circuit Breaker, Bolt-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eBuilt for everyday electrical work, the Siemens \u003cstrong\u003eED43B040\u003c\/strong\u003e is a \u003cstrong\u003e40 A\u003c\/strong\u003e, \u003cstrong\u003ethree-pole\u003c\/strong\u003e circuit breaker designed to protect circuits in \u003cstrong\u003epanelboards\u003c\/strong\u003e, \u003cstrong\u003eload centers\u003c\/strong\u003e, and broader \u003cstrong\u003eelectrical distribution\u003c\/strong\u003e systems. The \u003cstrong\u003eBolt-On\u003c\/strong\u003e design ensures a secure, durable installation in compatible Siemens panels, delivering dependable 3‑phase protection where it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e40 A, 3-Pole, 480V\u003c\/strong\u003e rating provides reliable protection for 3-phase commercial or industrial circuits up to 480V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-On\u003c\/strong\u003e mounting for quick, secure installation in suitable panelboards and distribution systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect part-number match\u003c\/strong\u003e support reduces downtime and simplifies inventory management for maintenance teams and panel builders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens reliability\u003c\/strong\u003e brings consistent trip characteristics and durable construction you can trust in everyday operations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: ED43B040 — a precise fit for projects or replacements where exact compatibility matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for facilities striving for predictable protection of 3‑phase circuits, this breaker is a smart choice for maintenance crews, panel builders, and spare inventory where quick, exact replacements are essential. It’s especially valuable in environments with standardized Siemens equipment catalogs, where exact part numbers streamline procurement and reduces the risk of mismatches.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow this breaker solves real-world problems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtects 3‑phase loads at up to 480V, helping prevent outages from overcurrent conditions in industrial and commercial distributions.\u003c\/li\u003e \u003cli\u003eBolt-on design speeds field servicing, minimizing downtime during replacements or upgrades.\u003c\/li\u003e \u003cli\u003eExact ED43B040 part-number compatibility minimizes installation guesswork and ensures proper fit in compatible panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for commissioning and maintenance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCross-check the exact \u003cem\u003eED43B040\u003c\/em\u003e part number with your panel catalog to confirm fit before ordering.\u003c\/li\u003e \u003cli\u003eCheck panel labeling and ensure the installed breaker is within the panel’s supported bolt-on style and voltage rating.\u003c\/li\u003e \u003cli\u003eMaintain a small stock of Siemens ED43B040 for rapid replacements in facilities with 3‑phase distribution—reducing downtime when a fault occurs.\u003c\/li\u003e \u003cli\u003eIf you’re unsure about compatibility, AmpState can assist with fit confirmation to prevent costly mismatches.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAvailable from AmpState, the Siemens ED43B040 delivers a dependable, precise solution for protecting 3‑phase circuits in industrial and commercial environments. If you need help matching a part number or confirming compatibility, send us a message and we’ll help verify the fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410989371554,"sku":"ED43B040","price":1792.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-ed43b040-40a-3p-480v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}