Siemens NGG3B070L - 70 A, 600 V, 3-Pole Circuit Breaker | AmpState

Siemens NGG3B070L is a 70 Amp, 600 Volt, 3-Pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers.

This unit combines a compact molded case design with a thermal-magnetic trip unit to provide stable, repeatable protection across a range of load conditions. The result is reliable circuit isolation when faults occur, while minimizing nuisance trips during normal operation.

• Compact design for space efficiency: streamlined form factor that maximizes panel space and simplifies wiring in tight electrical rooms.
• Thermal-magnetic trip unit for dependable protection: precise overload and short-circuit response delivers consistent protection for wiring and devices.
• 70A, 600V, 3-Pole: ideal for standard three-phase distribution in commercial or light industrial settings, with ample headroom for future loads.
• OEM-compatible: engineered to fit Siemens OEM load centers and panelboards, ensuring proper mounting, fit, and performance.
• Versatile applications: well-suited for residential, commercial, and light industrial panel installations where robust protection matters.

Use cases and installation considerations

• New panel installations in small to mid-size commercial spaces that require reliable three-phase protection.
• Retrofits or upgrades of existing Siemens panelboards where exact fit and coordinated trip characteristics are important.
• Residential subpanels or service panels in homes with future potential for increased three-phase loads.

Technical snapshot

• Manufacturer: Siemens
• Part number: NGG3B070L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 70A
• Voltage rating: 600V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Designed to deliver dependable protection in panelboards and load centers, the Siemens NGG3B070L is a thoughtful choice for projects demanding reliable, coordinated performance with Siemens OEM equipment. Ensure proper installation by aligning with your panel’s specifications and electrical code requirements for a safe, long-lasting solution.