{"product_id":"siemens-hb2b040","title":"Siemens HB2B040 40A 2-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HB2B040 40A 2-Pole 240 V Circuit Breaker — a purpose-built protection device designed to safeguard high-demand 240-volt circuits with precision. This is the HB2B040, a reliable choice for reliable back-up power protection in residential and light commercial electrical systems.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole, 240 V protection\u003c\/strong\u003e — ensures both hot legs trip together, preventing unbalanced loads and keeping downstream equipment safe from dangerous conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e40-amp current rating\u003c\/strong\u003e — sized to handle medium-to-high draw circuits such as air conditioning units, electric water heaters, space heaters, and other substantial 240 V appliances, while still executing prompt protection when overloads occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable Siemens engineering\u003c\/strong\u003e — built to deliver reliable trip performance over time, reducing nuisance trips and supporting long-term panel health.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, robust construction\u003c\/strong\u003e — designed for steady performance in the environments where residential and light commercial panels operate, with components built to endure regular switching.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility cues\u003c\/strong\u003e — specifically suited for Siemens panels and load centers that accommodate 2-pole, 240 V breakers in the HB family form factor, helping you upgrade or replace with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse the HB2B040 to protect 240 V branch circuits powering large appliances and equipment. It’s a solid choice when upgrading an existing Siemens panel or configuring a new installation where robust overcurrent protection is essential. Suitable for HVAC connections, water heating circuits, electric furnaces, and other high-current loads that demand dependable dual-conductor safety.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical installation tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm panel compatibility for a 2-pole, 240 V HB-series breaker and ensure the slot is rated for this configuration.\u003c\/li\u003e \u003cli\u003ePower down the main disconnect and de-energize circuits before replacement or installation. Follow the panel manufacturer’s instructions for proper mounting.\u003c\/li\u003e \u003cli\u003eWhen in doubt, consult a licensed electrician to verify correct sizing, wiring, and torque specifications for secure, code-compliant installation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 40 A • \u003cstrong\u003ePoles:\u003c\/strong\u003e 2 • \u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V • \u003cstrong\u003ePart number:\u003c\/strong\u003e HB2B040\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423254466722,"sku":"HB2B040","price":702.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-hb2b040","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}