{"product_id":"siemens-hgb3b030b-30a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HGB3B030B - 30 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens HGB3B030B\u003c\/strong\u003e is a robust 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 30 A rating and a 600 V capacity, it delivers reliable, consistent protection for demanding electrical installations in residential, commercial, and light industrial environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e Provides a rigid, vibration-resistant connection to the panel bus, helping maintain consistent electrical contact in settings with equipment vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection by combining a thermal element for overloads with an instantaneous magnetic trip for short circuits, reducing nuisance trips while safeguarding wiring and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole, 600 V capability:\u003c\/strong\u003e Designed for three-phase circuits up to 600 V, making it suitable for modern commercial and light industrial panel configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e30 A operation:\u003c\/strong\u003e Ideal for protecting branch circuits feeding motors, control panels, and other 3-phase loads without compromising performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e Specifically designed to be compatible with matching Siemens OEM load centers and panelboards, ensuring proper fit, listed coordination, and straightforward replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Appropriate for residential service panels, commercial distribution systems, and light industrial equipment where durable, long-term protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and scenarios where the HGB3B030B shines:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUpgrading or replacing a failed breaker in Siemens panelboards to restore reliable 3‑phase protection for small commercial spaces.\u003c\/li\u003e \u003cli\u003eProtecting 3‑phase equipment racks and lightly industrial distributions where vibration resistance is valuable.\u003c\/li\u003e \u003cli\u003eInstalling a dedicated 3‑pole protection device in service entrances or electrical rooms that require sturdy bolt-on mounting and tight bus connections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey specifications at a glance\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HGB3B030B\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 30 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\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\u003eWhy this design matters in the real world: the bolt-on configuration combined with a thermal-magnetic trip unit delivers a more rigid electrical connection and predictable protection behavior, reducing the risk of loose bus connections and inconsistent trips that can occur in vibration-prone environments. When you choose the HGB3B030B, you’re selecting a solution that pairs Siemens engineering with practical, everyday reliability for panel installations in homes, offices, and light industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349806272674,"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_8e94d4a7-63fa-47d5-8775-99fba4ea22b1.png?v=1764157343","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb3b030b-30a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}