{"product_id":"siemens-hed42b030l-30a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens HED42B030L - 30 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HED42B030L — a 30A, 480V, 2-pole bolt-on molded case circuit breaker built to safeguard your panelboards and loadcenters with dependable overcurrent and short-circuit protection. This is not a generic breaker; it’s a purpose-built solution designed to maintain protective integrity in demanding electrical environments.\u003c\/p\u003e \u003ch2\u003eWhy the HED42B030L Stands Out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e Delivers a rigid, vibration-resistant bus connection that stays put through equipment cycling and busy electrical rooms, reducing nuisance trips and connection loosening.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Combines precise thermal sensing with rapid magnetic response for stable, repeatable protection across a wide temperature range and varying loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible construction:\u003c\/strong\u003e Engineered to align with Siemens loadcenters and panelboards, ensuring a seamless fit and consistent protective behavior when replacing or upgrading breakers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad application range:\u003c\/strong\u003e Ideal for residential, commercial, and light industrial circuits needing reliable 30-amp protection up to 480 volts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical Snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HED42B030L\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker (MCCB)\u003c\/li\u003e \u003cli\u003eAmperage Rating: 30A\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\u003eApplications: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical Use Cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading service panels in multi-family buildings where reliable, secure breaker mounting is essential for long-term performance.\u003c\/li\u003e \u003cli\u003eReplacing aging or failed breakers in commercial office panels to restore safe, consistent protection.\u003c\/li\u003e \u003cli\u003eProtecting motor and HVAC circuits in light industrial settings where vibration resistance and stable trip characteristics matter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and Compatibility You Can Trust\u003c\/h3\u003e\n\u003cp\u003eThe HED42B030L is designed for bolt-on installation in Siemens OEM load centers and panelboards, delivering a precise mechanical footprint and trip characteristics that align with the rest of the system. Its robust mounting and dependable thermal-magnetic protection help you maintain safe operation, even in demanding environments.\u003c\/p\u003e \u003ch3\u003eWhat This Means for You\u003c\/h3\u003e\n\u003cp\u003eIf you’re building, upgrading, or maintaining a panel that requires solid branch-circuit protection at 30A and up to 480V, the Siemens HED42B030L offers a targeted, high-reliability solution. It’s a smart choice for technicians who value predictable protection, easy field replacement, and compatibility with Siemens’ own panel assemblies. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349800013986,"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_6198c111-1bc8-4124-89bc-cad4c5a59ced.png?v=1764157169","url":"https:\/\/www.ampstate.com\/products\/siemens-hed42b030l-30a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}