{"product_id":"siemens-qj22b100-100a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens QJ22B100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003eSiemens QJ22B100 is a dependable 100A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and load centers with precision and confidence. Built for regular, repeatable protection performance, this unit is a practical choice for both new installations and upgrades in residential, commercial, and light industrial environments. Key advantages that set this breaker apart\n- Secure bolt-on mounting for a rigid, vibration-resistant bus connection, helping to prevent loosening and nuisance trips in crowded or vibration-prone panels.\n- Thermal-magnetic trip unit delivers stable, repeatable protection by automatically responding to overloads and short-circuit faults, reducing downtime and equipment damage.\n- Ready to pair with matching OEM load centers and panelboards, ensuring seamless electrical system integration and reliable performance.\n- Versatile for a range of applications from home electrical panels to small business panels, offering a robust solution for protecting essential circuits. Technical snapshot at a glance\n- Manufacturer: Siemens\n- Part Number: QJ22B100\n- Type: Thermal-magnetic molded case circuit breaker (MCCB)\n- Amperage Rating: 100A\n- Voltage Rating: 240V\n- Number of Poles: 2\n- Mounting Style: Bolt-on\n- Application: Branch circuit overcurrent and short-circuit protection Why this 2-pole bolt-on breaker is a smart fit\n- Safe, efficient protection for 240V circuits serving critical loads, with a design that minimizes arc-flash risk and provides clear tripping when faults occur.\n- The bolt-on format supports solid mechanical contact and faster, more reliable field installation in compatible panelboards and load centers.\n- The thermal-magnetic mechanism offers dependable protection across varying temperatures and electrical conditions, helping you avoid unpredictable trips and equipment damage.\n- Ideal for upgrading older panels or specifying a compatible Siemens solution when building out a new electrical distribution system in homes, offices, or light industrial spaces. Use cases and practical applications\n- Residential electrical panels where consistent protection for main and branch circuits is essential.\n- Commercial panelboards supporting small office suites, retail spaces, or service areas requiring reliable fault protection.\n- Light industrial environments with moderate-duty circuits where robust, repeatable trip performance matters. What to consider for best results\n- Confirm compatibility with your OEM load center or panelboard model to ensure a seamless fit and uninterrupted protection.\n- Align the breaker’s 100A rating with the circuit’s conductor sizing and the overall panel rating for safe, compliant operation.\n- For retrofit projects, plan for secure bolt-on mounting to maximize bus connection integrity and minimize vibration-related issues. In short, the Siemens QJ22B100 100A, 240V, 2-pole bolt-on MCCB combines rugged construction, a precise thermal-magnetic trip, and OEM-compatible mounting to deliver dependable branch circuit protection across residential, commercial, and light industrial settings. Choose this breaker when you need a reliable, field-friendly solution that integrates smoothly with Siemens panel centers and supports long-term electrical safety and performance.\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355160137890,"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_8e2bdc30-d596-4f5a-86c1-09ec809ef819.png?v=1764689817","url":"https:\/\/www.ampstate.com\/products\/siemens-qj22b100-100a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}