Product image is representative; revision or series may vary. Contact us to request a specific version.
The LGB3B125B from Siemens is a robust molded case circuit breaker designed for 3-phase applications. With a rated voltage of 480 V and rated current of 125 A, this unit is built for efficient circuit protection and management.
We sell industrial automation parts backed by our free 2-Year DO Supply Warranty.
Same-day domestic and fast international shipping with UPS, FedEx, DHL, and more.
AMEX, Visa, MasterCard, Discover, wire transfer, net terms, and more.
Repairs and exchanges are available for all automation products.
Drop shipping, blind shipping, and account shipping with no extra fees.
| Manufacturer | Siemens |
|---|---|
| Product Type | Molded Case Circuit Breaker |
| Product Line | VL Series |
| Part Number | LGB3B125B |
| UPC | 887621220358 |
| Number of Poles | 3 Poles |
| Phase Type | 3-Phase |
| Rated Voltage | 480 V |
| Rated Current | 125 A |
| Functions | LI - Long-Time and Instantaneous |
| Connection Type | Bolt-On connection |
| Frame Size | GB Frame |
| Max. Voltage | 600 V |
| Interrupt Rating at 480 VAC | 65 KA |
| Interrupt Rating at 240 VAC | 100 KA |
The Siemens LGB3B125B is a molded case circuit breaker designed to deliver dependable performance in electrical systems. This three-pole breaker operates in a three-phase configuration and is rated for 480 V, making it a key component for effective circuit management in industrial environments. With a rated current of 125 A, it can efficiently handle significant electrical loads.
Engineered for flexibility, this unit offers both long-time and instantaneous trip functions, ensuring prompt reactions to overload conditions while also providing stability under typical operating scenarios. The frame size of this breaker is designated as GB, which is suitable for numerous mounting options.
Equipped with a bolt-on connection feature, the LGB3B125B facilitates straightforward integration within existing systems. It can withstand a maximum voltage of 600 V, indicating its robustness against potential over-voltage situations. Furthermore, the interrupt ratings deliver high levels of protection; the breaker can handle up to 65 KA at 480 VAC and 100 KA at 240 VAC. Such specifications affirm its capability to manage fault conditions effectively, ensuring operational safety and reliability.