{"product_id":"siemens-hed42b025-25a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens HED42B025 - 25 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED42B025 is a 25A, 480V, 2-pole bolt-on molded case circuit breaker crafted to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for steady performance in demanding environments, this breaker helps keep electrical systems safe, compliant, and up to code.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eSecure bolt‑on mounting\u003c\/b\u003e provides a rigid, vibration‑resistant bus connection, reducing the risk of loose contacts and unexpected trips in systems with vibration, temperature swings, or heavy loads.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThermal‑magnetic trip unit\u003c\/b\u003e delivers stable, repeatable protection—the thermal element handles overloads gently while the magnetic element responds instantly to high‑fault currents for fast disconnection.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eOEM‑matched compatibility\u003c\/b\u003e is designed to work seamlessly with Siemens load centers and panelboards, helping you maintain consistency, reliability, and code compliance across installations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVersatile 2‑pole design for 480V systems\u003c\/b\u003e is ideal for commercial and light industrial applications where both poles must disconnect together for safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eReal‑world applications and use cases\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting individual branch circuits in residential, commercial, and light industrial panelboards and load centers, the HED42B025 is well-suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCommercial lighting and receptacle circuits in small to mid‑size facilities\u003c\/li\u003e \u003cli\u003eHVAC controls and motor-start circuits where reliable short‑circuit protection is essential\u003c\/li\u003e \u003cli\u003eDistribution feeders in panelboards that require robust, code‑compliant overcurrent protection at the 25A rating\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation considerations\u003c\/h3\u003e\n\u003cp\u003eWith bolt‑on mounting, ensure the breaker is seated securely onto a compatible Siemens bus assembly in a matching OEM panelboard or load center. This design is chosen to minimize movement, reduce wear over time, and provide dependable long‑term performance in environments with mechanical stress or vibration. For best results, follow all manufacturer installation instructions and have a qualified electrician perform any wiring and commissioning tasks.\u003c\/p\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e HED42B025\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Thermal‑magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eAmperage Rating:\u003c\/b\u003e 25A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage Rating:\u003c\/b\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eNumber of Poles:\u003c\/b\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting Style:\u003c\/b\u003e Bolt‑on\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Branch circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens HED42B025 when you need dependable 2‑pole protection for 480V systems that fits securely in Siemens‑compatible panelboards and load centers. Its combination of secure mounting, precise thermal‑magnetic protection, and OEM compatibility helps you build safer, more reliable electrical distributions for a wide range of commercial and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349799882914,"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_a3043f0e-c0c9-4103-9ac1-9f1e06b33028.png?v=1764157164","url":"https:\/\/www.ampstate.com\/products\/siemens-hed42b025-25a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}