{"product_id":"siemens-hb3b040-40a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens HB3B040 - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HB3B040 - 40A, 240V, 3-pole Bolt-on Molded Case Circuit Breaker\u003c\/p\u003e\n\u003cp\u003eEngineered for dependable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters, the HB3B040 combines robust construction with precise protection. This 3-pole bolt-on breaker is built to stay securely seated—even in vibration-prone environments—while delivering consistent performance across installation environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays clamped under normal operation and throughout service life.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding to both overload (thermal) and short-circuit (magnetic) conditions, helping prevent nuisance trips and equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e with matching Siemens load centers and panelboards simplifies replacements and service, ensuring electrical compatibility and reliable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial installations where reliable 40A, 240V protection is needed across multi-pole circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HB3B040\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\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 \u003cp\u003eWho should consider the Siemens HB3B040? electricians and technicians upgrading or expanding panelboards and loadcenters in homes, offices, retail spaces, and light industrial facilities. It’s an ideal choice when you need a reliable, OEM-compatible 3-pole solution that maintains solid electrical contact and predictable protection performance across a range of operating conditions.\u003c\/p\u003e \u003cp\u003ePractical tips for use: select this breaker for circuits that require definitive 40A protection in a 240V, multi-pole configuration. Ensure compatibility with your existing Siemens panelboard or loadcenter to maintain system integrity, and leverage the bolt-on mounting to maximize mechanical stability in environments with equipment vibration or movement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349797589154,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hb3b040-40-a-240-v-3-pole-bolt-on-circuit-breaker-ampstate-529.webp?v=1788729189","url":"https:\/\/www.ampstate.com\/products\/siemens-hb3b040-40a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}