{"product_id":"siemens-ef3b100-circuit-breaker","title":"Siemens | EF3B100 | Circuit Breaker | 100A | 3-Pole | 600V | 14kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eWhen you need reliable, category-leading protection for 3‑phase 600V systems, the Siemens EF3B100 circuit breaker is engineered to perform. This 100A, 3‑pole, bolt‑on model delivers precise overcurrent protection with a robust build, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 100A\u003c\/li\u003e \u003cli\u003ePoles: 3‑Pole\u003c\/li\u003e \u003cli\u003eVoltage rating: 600V\u003c\/li\u003e \u003cli\u003eInterrupting capacity: 14kA\u003c\/li\u003e \u003cli\u003eMounting: Bolt‑On\u003c\/li\u003e \u003cli\u003ePart number: EF3B100\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Siemens EF3B100?\u003c\/h3\u003e\n\u003cp\u003eThe EF3B100 brings a deliberate, purpose-built design to industrial and commercial panels. The 3‑pole configuration ensures simultaneous disconnection across all phases, improving safety and reducing the risk of backfeeds in three‑phase circuits. Its bolt‑on mounting simplifies installation in compatible enclosures, enabling quicker maintenance or fault‑finding during downtime. With a 14kA interrupting capacity at 600V, this breaker is built to handle substantial fault currents typical of demanding electrical environments, giving you dependable protection when it matters most.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where a 100A, 3‑pole, 600V breaker is required to upgrade existing panels.\u003c\/li\u003e \u003cli\u003eMaintenance replacements in Siemens-equipped or compatible 3‑phase distribution systems.\u003c\/li\u003e \u003cli\u003eSpare part in maintenance inventories for critical infrastructure that operates at 600V.\u003c\/li\u003e \u003cli\u003eNew installations that demand a bolt‑on, three‑pole protection device with a clear, predictable trip profile.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings using the EF3B100 part number as the best reference for compatibility. This bolt‑on design is meant for panels that accommodate Siemens 3‑pole breakers with the same footprint and mounting style. When installing, ensure the power is fully shut off, and follow standard electrical safety practices. For best results, pair with a panel that matches the 600V operating requirement and 14kA fault current expectation of this device.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424721096866,"sku":"EF3B100","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-ef3b100-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}