Siemens NGG3B070 - 70 A, 600 V, 3-Pole Circuit Breaker | AmpState

Introducing the Siemens NGG3B070 — a 70A, 600V, 3-pole molded-case circuit breaker designed for dependable branch-circuit protection in panelboards and load centers. Available from AmpState, this unit blends Siemens engineering excellence with a compact footprint to maximize panel space without compromising safety or performance.

• Compact molded-case design minimizes panel footprint and simplifies wiring in tight spaces, helping you fit more protection into the same enclosure.
• Thermal-magnetic trip unit combines precise overload sensing with fast magnetic interruption for stable, repeatable protection across varying loads and temperatures.
• Three-pole configuration provides robust protection for 3-phase circuits, ideal for commercial and light industrial applications.
• OEM panel compatibility designed to work seamlessly with matching Siemens load centers and panelboards, ensuring proper fit and reliable operation.
• Versatile deployment suitable for residential, commercial, and light industrial circuits requiring reliable overcurrent and short-circuit protection at up to 600 V.

Technical snapshot

• Manufacturer: Siemens
• Part number: NGG3B070
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 70 A
• Voltage: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters

Choosing the NGG3B070 means reliable, predictable protection for your critical circuits. The space-saving molded-case design helps you optimize panel arrangements, while the thermal-magnetic trip unit delivers consistent protection during overloads and rapid interruption during short circuits. This combination reduces nuisance trips and supports safer, longer-lasting electrical systems in everyday residential, commercial, and light industrial settings.

Use cases

• Upgrading an older panelboard in a small office building to support a new 3-phase load.
• Protecting a branch circuit serving lighting, outlets, and equipment in a commercial space.
• Retrofitting a light industrial panel with a reliable Siemens 3-pole breaker for improved protection and space efficiency.