Siemens NEB3B070B - 70 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens NEB3B070B, a 70 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. This device is built to endure the demands of three-phase distribution and deliver predictable protection where it matters most.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing loosened connections and improving long-term reliability in electrical panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection against overloads and short circuits, with fast magnetic response to harmful fault currents.
• 3-pole, 70 A, 600 V configuration is ideal for three-phase distribution in commercial and light industrial settings, while still suitable for certain sophisticated residential applications that require robust protection.
• OEM-compatible design is specified to work with matching Siemens load centers and panelboards, ensuring plug-and-play integration and consistent electrical performance.
• Targeted protection guards branch circuits and connected equipment, helping to prevent downstream damage and unplanned downtime.

Whether you're upgrading an existing panel or wiring a new installation, the NEB3B070B delivers precise, dependable overcurrent and short-circuit protection. Its bolt-on style makes mounting straightforward in compatible Siemens enclosures, while its thermal-magnetic mechanism maintains protective thresholds across a range of temperatures and load conditions.

Technical details

• Manufacturer: Siemens
• Part Number: NEB3B070B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

For optimal performance, pair this breaker with Siemens OEM panelboards and load centers designed to accommodate NEB-series molded case breakers. This ensures consistent trip characteristics and reliable electrical protection across your distribution system.

Why choose the Siemens NEB3B070B? It combines a rugged bolt-on mount, precise thermal-magnetic tripping, and OEM-compatible design into a single package ideal for professionals who demand predictable protection and straightforward installation in panelboards and load centers.

Ready to secure your distribution system? Add the Siemens NEB3B070B to your cart and trust in a breaker built to handle the shocks of everyday electrical demand while reducing the risk of costly faults.