Siemens LGG3B015L - 15 A, 600 V, 3-Pole Circuit Breaker | AmpState

Siemens LGG3B015L is a 15A, 600V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Its compact form factor helps you maximize panel space, while a thermal-magnetic trip unit provides stable, repeatable protection for both overloads and short circuits.

Why this breaker stands out

• Space-efficient design — the molded case construction makes it easier to fit into crowded panel spaces without compromising protection.
• Thermal-magnetic trip unit — combines thermal sensing for sustained overload protection with magnetic trip action for fast response to high fault currents, reducing the risk of damage to wiring and equipment.
• 3-pole configuration — delivers synchronized protection across all three hot conductors, making it well-suited for 3‑phase systems and multi-wire circuits commonly found in commercial and light industrial settings.
• OEM compatibility — designed to be compatible with matching Siemens OEM load centers and panelboards, ensuring a reliable fit and electrical coordination.
• Versatile application — ideal for residential, commercial, and light industrial installations where reliable branch-circuit overcurrent and short-circuit protection is required.

Technical snapshot

• Manufacturer: Siemens
• Part Number: LGG3B015L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and installation notes

Choose the LGG3B015L when you need a compact, reliable 3-pole MCCB that fits Siemens panel products and provides robust protection for 600V circuits. It’s a solid choice for upgrading older panels, expanding electrical capacity in new builds, or replacing failing protective devices in residential, commercial, or light industrial environments. Verify that your panelboard supports a 3-pole molded case breaker of this rating, and install according to standard electrical practices to maintain safe, compliant operation.