Siemens NEB3B030B - 30 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens NEB3B030B is a robust 30A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for performance in demanding environments, it seamlessly integrates into existing OEM systems while delivering reliable protection for a wide range of applications.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping to minimize loosening and contact issues in busy electrical rooms and when equipment is subject to movement.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance by reliably responding to both overload and short-circuit conditions, reducing nuisance trips and enhancing safety.
• 3-pole configuration supports balanced three-phase circuits, making it ideal for commercial and light industrial panels that require coordinated phase protection.
• 600V rated suitable for higher-voltage panel environments, expanding compatibility with modern panelboards and load centers.
• OEM-compatible designed to work with matching Siemens OEM load centers and panelboards, ensuring straightforward replacement or upgrades without mismatches.
• Application versatility suitable for residential, commercial, and light industrial settings where reliable branch circuit overcurrent and short-circuit protection is essential.
• Part number NEB3B030B makes ordering and inventory straightforward for installers and facilities managers alike.

Whether you’re stocking parts for service calls, upgrading a panel in a small commercial space, or configuring a reliable protection scheme in a multi-family residence, the Siemens NEB3B030B delivers precise protection where it matters. Its combination of secure mounting, precise thermal-magnetic timing, and broad compatibility means fewer fit issues and clearer, safer operation across the life of the installation.