Siemens LGB3B015B - 15 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens LGB3B015B is a 15A, 600V, 3-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and load centers. Built for reliability across residential, commercial, and light industrial environments, it delivers consistent, predictable protection when it matters most.

• Bolt-on mounting provides a secure, vibration-resistant bus connection, reducing looseness and arcing in panels that experience movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overcurrent response with magnetic short-circuit detection for fast, dependable disconnection.
• 3-pole design ensures simultaneous disconnection across all three conductors, improving safety and system protection in three-phase applications.
• OEM-load center compatibility is engineered to work with matching Siemens panelboards and load centers, simplifying replacements and upgrades without compatibility concerns.
• 15A at 600V rating covers a wide range of branch-circuit needs, from lighting and receptacle circuits to small motor loads in appropriate installations.

This breaker is an ideal choice when you’re upgrading an aging panel or installing a new, Siemens-compatible distribution system. In practical terms, it helps electricians and maintenance teams:

• Keep critical circuits protected during routine operation and fault events without sacrificing speed or reliability.
• Ensure a robust, secure connection that withstands panel vibrations in equipment rooms and commercial spaces.
• Simplify project planning with a 3-pole, bolt-on MCCB that aligns with Siemens’ engineered protection strategy.

Who this is for: electricians, maintenance technicians, and facility managers working on Siemens-panel installations, whether renovating a commercial space, outfitting a light industrial site, or performing routine residential panel maintenance.

Key technical details

• Manufacturer: Siemens
• Part Number: LGB3B015B
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 15A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Crafted for durability and dependable protection, the Siemens LGB3B015B is a practical, long-term solution for panelboards and load centers that demand precise thermal-magnetic protection with a secure, maintenance-friendly installation. Available through AmpState, a trusted source for electrical components, it helps you complete reliable electrical protection without compromisess.