Siemens NGG3B020L - 20 A, 600 V, 3-Pole Circuit Breaker | AmpState

Siemens NGG3B020L is a compact 20A, 600V, 3‑pole molded case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Built to handle the demands of modern electrical layouts, it provides precise overcurrent and short-circuit protection while maximizing usable panel space.

• Compact molded-case design minimizes panel footprint, freeing space for additional circuits without compromising protection.
• Thermal-magnetic trip unit combines a stable thermal element with an instantaneous magnetic trip for fast, repeatable responses to faults while reducing nuisance trips during normal inrush conditions.
• 3-pole configuration delivers coordinated protection for 3‑phase or multi-wire circuits, maintaining consistent protection across phases.
• 600V rating makes it suitable for residential, commercial, and light industrial applications, handling a wide range of equipment and loads.
• OEM compatibility designed to pair with matching Siemens OEM load centers and panelboards, ensuring proper fit, alignment, and trip characteristics.

Use cases and practical applications:

• Protect 20A branch circuits feeding lighting, receptacle networks, or small motors in homes, offices, and retail spaces.
• Install in Siemens NGG or compatible panelboards to maintain consistent protection across the panel and simplify future maintenance or expansion.
• Ideal for commercial and light industrial panels where space efficiency and reliable fault protection are critical.

Technical snapshot
Type: Thermal-magnetic molded case circuit breaker • Amperage: 20A • Voltage: 600V • Poles: 3 • Application: Branch circuit overcurrent and short-circuit protection

Why choose this breaker? It combines space-conscious design with dependable trip performance and seamless OEM compatibility, delivering peace of mind for electricians, facilities managers, and property owners alike. If you’re upgrading a panel or planning a new installation, the NGG3B020L provides a clear, trustworthy solution for protecting essential circuits with clear, predictable response characteristics.