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LGB3B125B
LGB3B125B
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LGB3B125B Specifications
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LGB3B125B, Siemens, VL Series, type LGB, P, PH, A, V, , high interrupting capacity, panelboard mounting, suitable for reverse feed applications, Bolt-On, complete with trip functions and load side lug terminals, Thermal Magnetic, molded case circuit breakers
| Manufacturer | Siemens | Subcategory | Molded Case |
| Family | VL Series | Protection | Thermal Magnetic |
| Connection | Bolt-On | ||
| Manufacturer | Siemens | ||
| Subcategory | Molded Case | ||
| Family | VL Series | ||
| Protection | Thermal Magnetic | ||
| Connection | Bolt-On |
Electrical.com is NOT an authorized distributor for Square D and therefore the manufacturer’s warranty does not apply. This product does include an Electrical.com 2 year warranty.



We can test, inspect and repair your LGB3B125B. All repairs include a 2-Year Electrical.com Warranty.

The LGB3B125B is a molded case circuit breaker from the Siemens VL Series, specifically designed for low voltage panelboard applications in commercial and industrial environments. The LGB3B125B features a -pole configuration, a A rating, and is rated for operation at V. This breaker utilizes a thermal magnetic trip unit with LI (long-time and instantaneous) protection, providing both overload and short-circuit defense. The LGB3B125B offers an interrupting capacity of {aic rating}. It is built on the LGB (G Frame) platform and employs a bolt-on connection for secure installation in Siemens and ITE panelboards.
The Siemens VL Series, which includes the LGB3B125B, is known for its robust construction, high interrupting ratings, and compatibility with a broad range of Siemens distribution systems. Since its introduction, the series has been widely adopted in both new construction and retrofit projects for its reliable performance and ease of integration. The LGB3B125B is UL listed, supports three-phase systems, and is designed to meet demanding circuit protection requirements in modern electrical infrastructures.
Electrical.com offers the LGB3B125B circuit breaker, ensuring quick access for upgrades, replacements, and new installations. Our knowledgeable sales team is available to assist with technical questions, compatibility assessments, and product selection, helping you find the right solution for your electrical distribution system. Trust Electrical.com for genuine Siemens circuit breakers and expert support throughout your project.

