Siemens | NGB3B070V | Circuit Breaker | 70A | 3-Pole | 347V

Siemens NGB3B070V Circuit Breaker — a precise, 70A, 3‑pole solution designed for 347V three‑phase electrical systems. This unit is ideal for maintenance, retrofit, and replacement projects where exact compatibility matters and reliable protection is non‑negotiable.

Key specifications
Amperage: 70A
Poles: 3‑Pole
Voltage: 347V

Why this NGB3B070V matters for your panel

What sets this Siemens breaker apart is its exact part number identification. The NGB3B070V designation ensures you’re pairing the right device with compatible panels and upstream protection, reducing the risk of misfit or mismatched interrupting ratings. Always confirm fit and ratings before ordering—the part number is the best reference for compatibility.

• Triple‑phase protection — a true 3‑pole design that coordinates across all phases in 347V systems, helping prevent phase imbalances and arc‑fault risks in demanding commercial or industrial environments.
• Retrofit and replacement ready — a drop‑in solution for aging distribution units, enabling quick upgrades without sacrificing protection standards.
• Reliable identification for maintenance — clear part number reference supports accurate inventory, documentation, and future servicing.

Ideal use cases

• Replacing worn or outdated breakers in 347V three‑phase panels found in manufacturing floors, warehouses, or large commercial facilities.
• Retrofit projects where system upgrades require matching Siemens specifications and a known, consistent trip profile.
• Maintenance windows that demand a dependable, readily identifiable component with verified compatibility.

In practice, the Siemens NGB3B070V delivers dependable protection for 347V three‑phase circuits, with a clear path to compatibility verified by the part number. If your setup requires a 70A, 3‑pole breaker for 347V service, this unit provides a precise, trusted option that aligns with Siemens design standards and your maintenance workflows.