{"product_id":"lgb3b125b-siemens-vl-series-3-pole-125a-600v-thermal-magnetic-molded-case-circuit-breaker","title":"LGB3B125B | Siemens VL Series 3-Pole 125A 600V Thermal-Magnetic Molded Case Circuit Breaker","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Siemens® LGB3B125B is a VL Series molded case circuit breaker (MCCB) designed for reliable circuit protection in low-voltage distribution systems. This 3-pole, 125-amp, 600-volt breaker features a thermal-magnetic trip unit with long-time and instantaneous protection functions. It is engineered for use in industrial and commercial panelboards where high interrupting capacity and compact performance are essential.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCircuit Protection Devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLGB3B125B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMolded Case Circuit Breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVL Series (Type LGB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterrupting Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 kA @ 240V, 65 kA @ 480V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrip Unit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal-Magnetic (LI – Long-Time and Instantaneous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBolt-On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLoad-side lug terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeed Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuitable for reverse feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOverload and short-circuit protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApprovals \/ Certifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL Listed, CSA Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePanelboard mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × L × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.96 × 2.87 × 4.99 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens Breakers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.75 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About LGB3B125B\u003c\/h4\u003e\n\u003cp\u003eThe LGB3B125B is part of the Siemens VL (LGB type) molded case circuit breaker family, designed to deliver consistent performance in demanding electrical environments. Rated at 125 amps and 600 VAC, it offers high interrupting capacity of up to 100 kA at 240V and 65 kA at 480V, ensuring fast fault clearing and system safety. Its bolt-on connection allows secure installation in panelboards, and the breaker is suitable for reverse-feed applications, offering flexibility in system design. Built with a LI trip unit (long-time and instantaneous) and load-side lug terminals, the LGB3B125B combines durability, protection, and easy integration into Siemens power distribution systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Interrupting Capacity: Rated up to 100 kA @ 240V and 65 kA @ 480V for robust short-circuit protection.\u003c\/li\u003e\n\u003cli\u003eThermal-Magnetic Trip Unit: Combines long-time and instantaneous trip functions for precise overload protection.\u003c\/li\u003e\n\u003cli\u003eBolt-On Mounting: Secure panelboard installation for reliable power connections.\u003c\/li\u003e\n\u003cli\u003e125A Current Rating: Ideal for medium-capacity circuits in industrial or commercial installations.\u003c\/li\u003e\n\u003cli\u003eReverse-Feed Suitable: Can be installed in applications where line and load positions are reversed.\u003c\/li\u003e\n\u003cli\u003eCompact 3-Pole Design: Space-efficient and compatible with standard Siemens panelboards.\u003c\/li\u003e\n\u003cli\u003eUL Listed Construction: Meets global safety and performance standards for low-voltage protection.\u003c\/li\u003e\n\u003cli\u003eHigh Durability: Built with rugged molded case housing for long operational life in harsh environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LGB3B125B delivers the reliability, safety, and performance demanded in industrial power distribution and control applications.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105086611712,"sku":"LGB3B125B","price":939.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/LGB3B125B-All-New-1_3334ed8c-ed68-4730-8680-7c9f2e9f0cc4.jpg?v=1785539837","url":"https:\/\/alotechparts.com\/products\/lgb3b125b-siemens-vl-series-3-pole-125a-600v-thermal-magnetic-molded-case-circuit-breaker","provider":"Alo Tech Solutions","version":"1.0","type":"link"}