Siemens | HE3B100 | Circuit Breaker | 3-Pole | 480V | 25kA | Bolt-On

Meet the Siemens HE3B100, a rugged 3-Pole Circuit Breaker designed for 480V industrial distributions. Built for maintenance, retrofit, and replacement tasks, this Bolt-On unit delivers dependable protection where you need it most.

• Poles: 3-Pole for comprehensive protection across three-phase systems, streamlining coordination with other protective devices.
• Voltage: 480V compatible with standard industrial power networks, making it a straightforward fit for existing installations.
• Interrupting rating: 25kA provides strong fault protection, helping to safeguard downstream equipment and reduce downtime during faults.
• Bolt-On mounting enables quick, secure installation and easier field retrofit without complex tooling.
• Part number: HE3B100 as the best compatibility reference. Confirm fit and ratings before ordering to ensure a proper match with your panel.

This breaker is ideal for technicians and facilities teams performing routine maintenance, equipment upgrades, or panel replacements in 480V environments. Use cases include upgrading aging panels to meet current protection standards, replacing a failed unit with an exact-size, like-for-like alternative, or retrofitting control circuits in manufacturing lines where reliable three-phase protection is essential.

Why choose this Siemens breaker in practical terms? The 3-Pole configuration guarantees synchronized protection across all three conductors, while the 25kA rating guards against damaging short circuits that could impact entire lines. The Bolt-On design minimizes field installation time, helping you shorten maintenance windows and keep production on track.

Before purchasing, verify that HE3B100 matches your panel’s bus configuration and system voltage. Rely on the part number as your primary compatibility reference to minimize mismatches. When in doubt, confirm the fit and ratings to ensure safe, compliant operation in your 480V setup.