Siemens LGB3B125B Molded Case Circuit Breaker – 125A – 3-Pole / 3-Phase – 600V – 100kA @ 240V – Bolt-On – VL Series LGB

The Siemens LGB3B125B is a 125A, 3-pole, 3-phase molded case circuit breaker from the Siemens VL Series Type LGB. It features thermal-magnetic protection with Long-Time and Instantaneous (LI) trip functions and a complete, non-interchangeable trip configuration.

The LGB3B125B is rated for 600V and provides a 100kA interrupting rating at 240V, with a high interrupting capacity. It is designed for panelboard mounting, uses a bolt-on connection, is suitable for reverse-feed applications, and includes load-side lug terminals.

Specifications:

• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Product Family: VL Series
• Series: VL
• Type: LGB
• Catalog No.: LGB3B125B
• Current Rating: 125A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 100kA @ 240V
• Interrupting Capacity: High
• Protection Type: Thermal-Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Trip Type: Non-Interchangeable
• Mounting Type: Panelboard Mounting
• Connection Type: Bolt-On
• Reverse Feed: Suitable for Reverse-Feed Applications
• Terminal Type: Load-Side Lug Terminals
• Application: Electrical Distribution and Overcurrent Protection

Part Numbers & Identification:

• Manufacturer Part Number (MPN): LGB3B125B
• Catalog Number: LGB3B125B
• Model: LGB3B125B
• Product Family: Siemens VL Series Molded Case Circuit Breakers
• Series: VL
• Type: LGB
• Brand: Siemens
• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 125A
• UPC:887621220358

Compatibility:

Designed for use with compatible Siemens VL Series Type LGB electrical distribution equipment that accepts bolt-on molded case circuit breakers. The LGB3B125B provides 125A, 3-pole thermal-magnetic protection for compatible 600V applications.

The breaker features Long-Time and Instantaneous (LI) trip functions, a non-interchangeable trip, high interrupting capacity, panelboard mounting, reverse-feed suitability, and load-side lug terminals.

Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, trip-unit requirements, terminal arrangement, mounting requirements, and installation instructions before installation.

Certifications:

• VL Series
• LGB Type
• 125A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 100kA @ 240V Interrupting Rating
• High Interrupting Capacity
• Thermal-Magnetic Protection
• Long-Time and Instantaneous (LI) Trip Functions
• Non-Interchangeable Trip
• Panelboard Mounted
• Bolt-On Connection
• Suitable for Reverse-Feed Applications
• Load-Side Lug Terminals

Returns are easy

You may return items within 10 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.