{"product_id":"siemens-bq3b100-100a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens BQ3B100 - 100 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ3B100 delivers dependable overcurrent and short-circuit protection for branch circuits in panelboards and load centers. This 100A, 240V, 3-pole bolt-on molded-case circuit breaker is engineered to plug into compatible Siemens and OEM panels, providing a secure, maintenance-friendly solution for demanding electrical environments.\u003c\/p\u003e \u003cp\u003eBuilt for resilience, the bolt-on mounting creates a rigid, vibration-resistant bus connection that stays tight even in installations subject to movement or vibration. The thermal-magnetic trip unit offers stable, repeatable protection by accurately sensing overloads and swiftly clearing faults, helping prevent damage to wiring and connected equipment while minimizing nuisance trips.\u003c\/p\u003e \u003cp\u003eDesigned for broad compatibility, this unit is intended to work with matching OEM load centers and Siemens panels, ensuring a precise fit, consistent electrical performance, and simpler panel maintenance over time.\u003c\/p\u003e \u003cp\u003eIdeal for residential upgrades, commercial applications, and light industrial panels where reliable protection and long-term reliability matter, the BQ3B100 combines robust construction with straightforward installation in a compact form factor.\u003c\/p\u003e \u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e for a secure, vibration-resistant bus connection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e for stable, repeatable overcurrent and short-circuit protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e100A, 240V, 3-pole\u003c\/strong\u003e configuration designed for three-conductor circuits\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded-case construction\u003c\/strong\u003e provides durable, modular protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with Siemens panels and matching load centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: BQ3B100\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 100 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 \u003ch3\u003eUse cases and practical insights\u003c\/h3\u003e\n\u003cp\u003eWho benefits most: electricians and facilities managers upgrading or expanding panelboards in homes, small-to-medium commercial spaces, or light-industrial environments where reliability and panel integrity are critical.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eResidential panel retrofits can leverage the secure bolt-on design to maintain solid electrical connections as circuits are added or rearranged.\u003c\/li\u003e \u003cli\u003eCommercial service panels for lighting, receptacle branches, and HVAC feeders gain enhanced protection with a durable, code-compliant MCCB option.\u003c\/li\u003e \u003cli\u003eLight industrial panels that endure higher vibration or movement benefit from the rugged bus connection and repeatable trip performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and maintenance tips: confirm the panelboard accepts bolt-on molded-case breakers of the BQ3B100 family, and refer to the panel’s installation guide for torque guidelines and clearance requirements. Periodic inspections should include checking that bolt-on connections remain tight and that the trip mechanism moves freely, ensuring ongoing, reliable protection for your electrical system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349767049378,"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_4a04b269-66c7-4267-843d-8bbd40a4c643.png?v=1764156219","url":"https:\/\/www.ampstate.com\/products\/siemens-bq3b100-100a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}