{"product_id":"siemens-hgb2k125b-circuit-breaker","title":"Siemens | HGB2K125B | Circuit Breaker | 125A | 2-Pole | 347V","description":"\u003cdiv\u003eSiemens HGB2K125B Circuit Breaker — 125A, 2-Pole, 347V \u003cp\u003eMeet a reliable protection solution designed for demanding electrical environments. The Siemens HGB2K125B is a 2-pole circuit breaker with a 125A rating and a 347V operating range, built to fit maintenance, retrofit, and replacement scenarios where exact specifications matter. When your panel or distribution system relies on Siemens compatibility, this breaker delivers the dependable performance you expect from a trusted brand.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 125A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 347V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference\u003c\/strong\u003e: HGB2K125B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong purpose-built for reliability\u003e — engineered to protect critical loads in commercial and light industrial applications where consistent response and stable performance matter.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient retrofit and replacement\u003c\/strong\u003e — designed to drop into compatible Siemens panels with minimal downtime, helping you restore protection quickly during maintenance windows.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility pathway\u003c\/strong\u003e — the part number HGB2K125B serves as the best reference for matching against your existing equipment, ensuring correct fit and ratings before you order.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service of Siemens-compatible distribution panels requiring a 2-pole protection device rated at 125A.\u003c\/li\u003e \u003cli\u003eRetrofits where 347V class protection is specified, aligning with higher-voltage commercial or industrial feeder circuits.\u003c\/li\u003e \u003cli\u003eReplacement for aging or failed breakers in systems designed for Siemens’ protection scheme and trip characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat to check before you order\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm that your panel or enclosure requires a 2-pole device with a 347V rating and 125A amperage.\u003c\/li\u003e \u003cli\u003eUse the part number HGB2K125B as the primary compatibility reference to avoid mismatches.\u003c\/li\u003e \u003cli\u003eEnsure the overall protection scheme of your system remains consistent with Siemens’ specifications for safe and reliable operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways de-energize the system and follow lockout\/tagout procedures before replacing any circuit breaker.\u003c\/li\u003e \u003cli\u003eVerify labeling in your panel to ensure the breaker’s trip characteristics align with the protected circuit’s requirements.\u003c\/li\u003e \u003cli\u003eHandle the device with care to avoid damage to terminals and contacts, which can affect performance and reliability.\u003c\/li\u003e \u003cli\u003eAfter installation, perform a controlled test to confirm proper trip operation under the panel’s protected load conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eGetting the most from your Siemens HGB2K125B\u003c\/h3\u003e\n\u003cp\u003eChoosing a legitimate Siemens breaker like the HGB2K125B helps maintain the integrity of your electrical system’s protection scheme. Its 125A, 2-pole design is well-suited for circuits that demand solid overcurrent protection at a 347V rating, offering a straightforward pathway for service technicians and facility managers who need dependable, compatible replacements without guesswork.\u003c\/p\u003e \u003ch4\u003eFrequently asked considerations\u003c\/h4\u003e\n\u003cp\u003eHow do I know this is the right fit? Use the part number HGB2K125B to verify compatibility with your Siemens panel and cross-check the amperage and voltage requirements. If your system calls for a 2-pole device at 347V with a 125A rating, this breaker is designed to meet that specification and help you restore protection with confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426655064226,"sku":"HGB2K125B","price":6537.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hgb2k125b-circuit-breaker-125a-2-pole-347v-240.webp?v=1789601327","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb2k125b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}