{"product_id":"siemens-b320hh-20a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens B320HH - 20 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens B320HH, a purpose-built 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. With a 20-amp rating at 240 volts, it’s built to handle mid-range residential, commercial, and light industrial circuits with confidence.\u003c\/p\u003e \u003ch3\u003eWhy the Siemens B320HH stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection. In active service environments—where panels endure vibration or movement—the B320HH stays firmly in place, reducing the risk of loose connections and intermittent trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance. The thermal element responds to gradual overloads, while the magnetic element sharply interrupts high-energy faults, resulting in reliable protection with predictable trip behavior.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to pair with matching Siemens OEM load centers and panelboards, helping you maintain a cohesive, dependable electrical system when upgrading or upgrading existing panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile installation profile\u003c\/strong\u003e suits residential, commercial, and light industrial applications, making it a flexible choice for service panels, distribution boards, and retrofit projects.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems this breaker solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents overcurrent and short-circuit damage in branch circuits by tripping at precise thresholds, protecting wiring and connected devices.\u003c\/li\u003e \u003cli\u003eMinimizes panel downtime with fast, predictable responses to faults, helping maintain safer, more reliable electrical systems.\u003c\/li\u003e \u003cli\u003eOffers a sturdy mounting solution that remains secure in environments subject to vibration or movement, reducing maintenance and inspection concerns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential subpanels and main distribution panels requiring reliable 20A protection for multiple circuits.\u003c\/li\u003e \u003cli\u003eCommercial lighting or receptacle circuits in small to mid-size spaces where panel reliability matters.\u003c\/li\u003e \u003cli\u003eLight industrial control panels where robust mounting and consistent protection are critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B320HH\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens B320HH means opting for a proven, purpose-built solution that prioritizes secure installation, precise protection, and compatibility with Siemens panel ecosystems. It’s the practical, reliable choice for electricians and facility managers who demand consistent performance in everyday electrical layouts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349753483426,"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_35e1cf29-2e76-4e18-b2b7-a771691031bf.png?v=1764155923","url":"https:\/\/www.ampstate.com\/products\/siemens-b320hh-20a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}