Siemens NGB3B110B - 110 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens NGB3B110B, a robust 110 A, 600 V, 3‑pole bolt‑on molded case circuit breaker designed to safeguard your electrical distribution. Built for dependable branch circuit overcurrent and short‑circuit protection in panelboards and loadcenters, it delivers reliable performance where it matters most.

Why this breaker stands out

• Secure bolt‑on mounting provides a rigid, vibration‑resistant connection to the bus, reducing loosening risks in environments with movement or vibration.
• Thermal‑magnetic trip unit delivers stable, repeatable protection by precisely responding to overloads and short circuits, helping prevent nuisance trips while maintaining safety margins.
• 3‑pole design ideal for 3‑phase circuits, enabling efficient protection for commercial and light industrial power distribution.
• 600 V, 110 A ratings align with typical commercial and light industrial panel requirements, providing ample headroom for moderate‑to‑high‑current applications.
• OEM panel compatibility is engineered to work with matching Siemens OEM loadcenters and panelboards, ensuring straightforward installation and consistent performance.

Smart applications and use cases

Use the NGB3B110B to protect branch circuits across a range of settings:

• Residential upgrades where a reliable 3‑pole protection device is needed in main or sub‑panels that support three‑phase components or balanced load distribution.
• Commercial electrical rooms requiring solid, vibration‑tolerant protection for distribution panels powering motors, HVAC, and lighting circuits.
• Light industrial environments where durable bolt‑on mounting and robust trip performance help maintain uptime and safety in active facilities.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: NGB3B110B
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 110 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Why it matters for your electrical system

Instead of a one‑size‑fits‑all approach, the NGB3B110B combines durable hardware with precise protection characteristics tailored for panelboards and loadcenters. Its bolt‑on design minimizes connection issues in demanding environments, while the thermal‑magnetic trip mechanism provides dependable protection across a wide range of operating conditions. When you need a trusted hydraulic of safety and reliability in a 3‑pole package, this Siemens breaker helps keep distribution stable, safe, and ready for service.

Practical tips for installation and optimization

• Ensure the breaker matches the panelboard or loadcenter specifications for a seamless fit and guaranteed electrical compatibility.
• Follow all applicable electrical codes and manufacturer guidelines during installation, including proper torque and mounting practices to maintain a solid bus connection.
• Plan for your three‑phase load distribution—the 3‑pole design provides balanced protection across all phases, reducing the risk of uneven loading.