{"product_id":"siemens-hgb3b025b-25a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HGB3B025B - 25 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HGB3B025B—a dependable 25A, 600V, 3-pole bolt-on molded case circuit breaker engineered to protect your panelboards and loadcenters with precision. Built for consistent performance in real-world conditions, this unit delivers reliable branch circuit overcurrent and short-circuit protection where it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhy this model stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, reducing loose contacts and ensuring consistent operation in environments with equipment vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines thermal overload protection with instantaneous magnetic trip for short circuits, delivering stable, repeatable protection without nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e safeguards three-phase circuits, ensuring coordinated protection across all phases in commercial or light industrial distributions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e fits typical panelboard and loadcenter specifications found in residential, commercial, and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e is designed to integrate smoothly with matching Siemens OEM loadcenters and panelboards for a seamless replacement or upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho this is for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eElectrical professionals, facility managers, and panel builders who need a robust, ready-to-install circuit breaker that aligns with Siemens equipment. Ideal for upgrading older panels, stocking service trucks, or building out reliable electrical distribution where three-phase protection is required.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUse cases and benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential, commercial, and light industrial distribution where a 25A branch circuit breaker is appropriate.\u003c\/li\u003e \u003cli\u003eSubpanel or main distribution boards that require precise thermal-magnetic protection with a secure mounting method.\u003c\/li\u003e \u003cli\u003eReplacement within OEM-loadcenter ecosystems to preserve panel labeling, trip characteristics, and electrical coordination.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eHow it works and what it protects\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe HGB3B025B interrupts current when a fault exceeds the thermal or magnetic trip thresholds, preventing overheating and limiting fault currents. This helps protect wiring insulation, connected equipment, and overall system integrity, while reducing the risk of fire hazards associated with overcurrent conditions.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HGB3B025B\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 25A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\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 \u003cp\u003e\u003cstrong\u003eTips for installation and ongoing reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure compatibility by pairing with matching Siemens OEM panelboards or loadcenters to maintain electrical coordination and labeling consistency.\u003c\/li\u003e \u003cli\u003eFollow Siemens installation guidelines for bolt torque and secure mounting to maximize the durability of the bus connection.\u003c\/li\u003e \u003cli\u003eUse this unit in circuits that require precise 3-phase protection; if circuits frequently trip, review circuit load profiles and verify wiring integrity.\u003c\/li\u003e \u003cli\u003ePeriodically inspect for signs of overheating or wear in the vicinity of the breaker to catch issues before they affect system performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349806239906,"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_2be5eba3-cbdc-4703-b331-bda52edd3c9e.png?v=1764157341","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb3b025b-25a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}