{"product_id":"commander-qbh220-20a-240v-2-pole-bolt-on-circuit-breaker","title":"Commander QBH220 - 20 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Commander QBH220—a 20A, 240V, 2-pole bolt-on molded case circuit breaker crafted for dependable branch-circuit protection in panelboards and loadcenters. This unit is purpose-built for residential, commercial, and light industrial applications where reliability and precise protection matter most.\u003c\/p\u003e \u003cp\u003eThe QBH220 stands out through thoughtful design and proven performance. It combines a secure bolt-on mounting with a rigid bus connection to resist vibration and maintain consistent electrical contact. Its \u003cstrong\u003ethermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element handles long-term overcurrent trends, while the magnetic element responds instantly to high-current faults, helping prevent damage to wiring and connected equipment. And because it’s a \u003cstrong\u003e2-pole\u003c\/strong\u003e breaker, both live conductors trip together, ensuring safer, more reliable disconnection in all fault conditions.\u003c\/p\u003e \u003ch3\u003eWhy this matters for your distribution system\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, minimizing loose connections that can lead to overheating or nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic protection\u003c\/strong\u003e balances long-term circuit health with fast fault response, helping protect wiring, devices, and occupants.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole operation\u003c\/strong\u003e ensures simultaneous disconnection of both hot legs, improving safety for 240V circuits and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e25+ year compatibility\u003c\/strong\u003e with matching OEM loadcenters and panelboards streamlines replacement and service in existing enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile fit\u003c\/strong\u003e ideal for residential panel upgrades, commercial distribution panels, and light industrial installations where dependable overcurrent and short-circuit protection is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eManufacturer: Commander\u003c\/li\u003e \u003cli\u003ePart Number: QBH220\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 20A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240V\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 \u003ch3\u003ePractical use cases and installation notes\u003c\/h3\u003e \u003cp\u003eReplace aging or failed breakers in existing panelboards or loadcenters that require a 20A, 240V, 2-pole bolt-on solution. Suitable for circuits feeding lighting, receptacles, small appliances, and 240V equipment within homes, small offices, retail spaces, and light manufacturing settings.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIdeal when you need a straightforward swap for a like-for-like 2-pole bolt-on breaker in OEM panels.\u003c\/li\u003e \u003cli\u003eUse in new installations where a robust, vibration-resistant connection is essential due to equipment layout or environmental conditions.\u003c\/li\u003e \u003cli\u003eFollow standard electrical best practices for panel work, including proper torque on mounting hardware and verifying trip characteristics align with protective coordination goals.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Commander QBH220, you’re choosing a trusted, purpose-built solution for reliable electrical protection. It’s a practical, enduring choice for ensuring safety, compliance, and continuity in your distribution system, backed by performance that aligns with the expectations of professional installers and building operators alike.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349483016354,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_3278d7b3-2fe0-4c85-8a67-14be56af615c.png?v=1764147889","url":"https:\/\/www.ampstate.com\/products\/commander-qbh220-20a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}