{"product_id":"siemens-hed42b025l-25a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens HED42B025L - 25 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HED42B025L — a precise, dependable 25A, 480V, 2-pole bolt-on molded case circuit breaker designed to protect your electrical system where it matters most. Built for panelboards and load centers, this unit delivers a solid, vibration-resistant bus connection and consistent protection performance across a range of demanding environments.\u003c\/p\u003e \u003ch2\u003eWhy the HED42B025L stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e — engineered for a rigid, vibration-resistant bus connection that stays put in demanding panels and busy installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — provides stable, repeatable protection against overcurrents and short circuits, reducing nuisance trips and ensuring reliable interruption when needed.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens compatibility\u003c\/strong\u003e — designed to match Siemens OEM panelboards and loadcenters, enabling straightforward integration into existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole, 480V operation\u003c\/strong\u003e — efficient control of 480V circuits with a compact, space-saving footprint ideal for commercial and light industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBranch circuit protection\u003c\/strong\u003e — specifically built for overcurrent and short-circuit protection of individual branches within a panelboard or loadcenter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HED42B025L\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 25A\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\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eDesigned for residential, commercial, and light industrial applications, the HED42B025L is a solid choice when a reliable two-pole breaker is needed to protect 480V branch circuits. It’s well-suited for retrofit projects in existing Siemens panelboards and loadcenters, as well as new installations where secure mounting and consistent trip performance matter. Use it to guard critical circuits such as lighting feeders, receptacle banks, or small motor loads that operate at 480V and require precise current limitation.\u003c\/p\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eEnsure the panelboard or loadcenter is designed to accept bolt-on molded case breakers of this type and rating.\u003c\/li\u003e \u003cli\u003eVerify that the circuit’s voltage and amperage align with the 480V, 25A specifications to prevent nuisance trips or underprotection.\u003c\/li\u003e \u003cli\u003eInstall with the recommended torque on mounting hardware to maintain the vibration-resistant benefits of the bolt-on design.\u003c\/li\u003e \u003cli\u003ePair with other Siemens components in compatible panelboards to maintain uniform protection profiles and system performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat problems does it solve?\u003c\/h2\u003e\n\u003cp\u003eThe HED42B025L provides dependable, targeted protection for 480V branch circuits, reducing the risk of damage from overcurrent and short-circuit events. Its thermal-magnetic trip mechanism delivers reliable responses under varying electrical conditions, while the bolt-on mounting ensures a solid, long-lasting connection even in environments with vibration or movement. For installers and building operators, it means fewer mismatches, straightforward replacement in Siemens ecosystems, and predictable protection for critical electrical loads.\u003c\/p\u003e \u003cp\u003eIf you’re upgrading or maintaining a Siemens panelboard or loadcenter and need a precise, durable 2-pole breaker for 480V services, the Siemens HED42B025L offers a clear, purpose-built solution with proven performance and easy integration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349799948450,"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_5c592596-0d2d-471b-bbdf-d7f618dbd36a.png?v=1764157165","url":"https:\/\/www.ampstate.com\/products\/siemens-hed42b025l-25a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}