Siemens NGG3B100L - 100 A, 600 V, 3-Pole Circuit Breaker | AmpState

Siemens NGG3B100L is a robust 3-pole molded case circuit breaker rated at 100 A and 600 V, engineered to shield branch circuits in panelboards and load centers from overcurrent and short circuits. Its compact profile makes efficient use of panel space, while a thermal-magnetic trip unit delivers stable, repeatable protection across a wide range of operating conditions. Designed for seamless compatibility with Siemens OEM load centers, this breaker offers a reliable, straightforward upgrade for residential, commercial, and light-industrial electrical systems.

• Compact molded-case design: optimized for tight panel spaces and streamlined installation in existing or new panels.
• Thermal-magnetic trip unit: combines precise thermal overload sensing with magnetic short-circuit protection for fast, predictable tripping behavior.
• 3-pole configuration: ideal for balanced three-phase circuits, reducing neutral-related issues and ensuring comprehensive protection.
• 100 A, 600 V rating: suitable for feeder and branch circuits in a wide range of commercial and industrial environments.
• OEM-compatible: engineered to drop into Siemens panelboards and loadcenters without adapters or modifications, ensuring reliable performance.
• Versatile applications: well-suited for residential panels, commercial distribution, and light-industrial electrical systems where dependable protection matters.

Use cases include safeguarding motor and equipment circuits in small business environments, protecting lighting and receptacle feeders in multi-tenant buildings, or serving as the main protection point in moderate industrial panels. For a proven, compatible solution that aligns with your Siemens gear, the NGG3B100L delivers clear advantages over generic replacements.

Technical specifications

• Manufacturer: Siemens
• Part Number: NGG3B100L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ready to upgrade your panel protection? The NGG3B100L delivers dependable performance, straightforward integration, and peace of mind for electrical systems that demand reliable, long-term protection.