{"product_id":"ge-tey340st12-40a-480v-3-pole-bolt-on-circuit-breaker","title":"GE TEY340ST12 - 40 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eGE TEY340ST12\u003c\/strong\u003e is a 40A, 480V, 3-pole bolt-on molded case circuit breaker engineered to protect branch circuits in panelboards and loadcenters with dependable performance. Designed for commercial and light-industrial environments, this device delivers a robust, vibration-resistant connection and precise protection when it matters most.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, minimizing loosened contacts and ensuring consistent electrical performance in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection—responding quickly to short circuits while preventing nuisance trips from normal load variations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is intended for use with matching manufacturer loadcenters and panelboards, simplifying replacement and maintenance projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration for 480V systems\u003c\/strong\u003e supports three-phase distribution, ideal for commercial equipment, motors, and HVAC circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eIn busy electrical rooms, loose connections can lead to overheating and unpredictable trips. The bolt-on construction of the GE TEY340ST12 minimizes that risk by delivering a solid mechanical bond to the panel’s bus bars. The integrated thermal-magnetic trip unit provides reliable fault detection for both overload and short circuits, helping protect wiring, devices, and downstream equipment from damage in \u003cem\u003epanelboards\u003c\/em\u003e and \u003cem\u003eloadcenters\u003c\/em\u003e.\u003c\/p\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cp\u003eThis breaker is well-suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCommercial electrical panels and industrial control panels powered by 480V three-phase systems\u003c\/li\u003e \u003cli\u003eMotor feeders, HVAC equipment, and lighting distribution circuits\u003c\/li\u003e \u003cli\u003eRenovation or upgrade projects where OEM-matched panel components are preferred for reliability and service life\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e GE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TEY340ST12\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and maintenance\u003c\/h3\u003e\n\u003cp\u003eFor best results, pair this \u003cstrong\u003eGE TEY340ST12\u003c\/strong\u003e with a compatible OEM panelboard to ensure coordinated trip characteristics. Verify panel ratings align with a 480V three-phase supply, and maintain clean, dry enclosures to preserve the integrity of the bolt-on connection. When replacing an existing breaker, preserve the original alignment to avoid bus-bar bending and ensure a tight, secure fit.\u003c\/p\u003e \u003ch3\u003eWhy choose this solution over alternatives\u003c\/h3\u003e\n\u003cp\u003eThe combination of \u003cstrong\u003ebolt-on mounting\u003c\/strong\u003e and a \u003cstrong\u003ethermal-magnetic trip\u003c\/strong\u003e system makes this breaker a reliable choice for installations where mechanical stability and precise protection are critical. Its compatibility with OEM panels reduces replacement complexity, while the 3-pole, 480V rating covers a wide range of commercial and light-industrial applications—delivering consistent protection without the guesswork often associated with non-matching components.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349697417378,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/ge-tey340st12-40-a-480-v-3-pole-bolt-on-circuit-breaker-ampstate-732.webp?v=1788710947","url":"https:\/\/www.ampstate.com\/products\/ge-tey340st12-40a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}