{"product_id":"siemens-ed42b090-90a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens ED42B090 - 90 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens ED42B090\u003c\/strong\u003e is a 90A, 480V, 2-pole bolt-on molded case circuit breaker engineered to deliver dependable branch circuit protection in panelboards and loadcenters. This device guards electrical circuits from overcurrent and short-circuit conditions while standing up to the demands of commercial and light industrial power environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: provides a rigid, vibration-resistant bus connection, minimizing loosening risk and delivering consistent trip performance even in installations with vibration or frequent switching.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: combines precise thermal overload sensing with fast magnetic actuation for short circuits, ensuring stable, repeatable protection across temperature and load variations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: designed to pair with Siemens panels and matching OEM loadcenters, enabling straightforward replacements and reliable electrical fitment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile 2-pole protection\u003c\/strong\u003e: ideal for protecting branch circuits in 480V systems—suitable for commercial, light industrial, and select residential applications where 480V service is present.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e: \u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: ED42B090\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 90A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 480V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 2\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and practical benefits:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eFeeding motor control centers and distribution panels in light industrial environments where 480V distribution is standard.\u003c\/li\u003e \u003cli\u003eReplacing worn-out breakers in existing Siemens or OEM loadcenters to maintain consistent trip characteristics and minimize downtime.\u003c\/li\u003e \u003cli\u003eMounting in panels exposed to vibration (e.g., equipment rooms, portable substations) where bolt-on reliability reduces risk of connection loosening.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the ED42B090, you get a purpose-built protection device that not only shuts down faults fast but also stays reliable under real-world conditions. It’s a solid, long-term choice for electricians and facilities managers who demand predictable performance and easy compatibility with existing Siemens panel ecosystems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349789036706,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_aec19ab1-6c01-4c9f-8513-02d487b4b164.png?v=1764156795","url":"https:\/\/www.ampstate.com\/products\/siemens-ed42b090-90a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}