Siemens | HE3B110 | Circuit Breaker | 3-Pole | 480V

Siemens HE3B110 is a 3-Pole, 480V circuit breaker designed to protect and control three‑phase electrical systems. Built for maintenance, retrofit, and replacement projects where exact compatibility matters, this Siemens device ensures you keep your panel's protective scheme intact and compliant.

• Poles: 3-Pole
• Voltage rating: 480V
• Best reference for compatibility: Part number HE3B110
• Important note: Confirm fit and ratings before ordering to avoid mismatches

Use cases include replacing a worn or mismatched breaker in a 3‑phase, 480V setup, upgrading to a Siemens-compatible unit in existing panels, or retrofitting equipment where a precise HE3B110 specification is required. By sticking to the exact part number, you ensure the electrical characteristics—and the safety protections—align with your system's design.

Why this matters: When your panel relied on a Siemens HE3B110 for three-phase protection, using the exact same part number reduces installation guesswork, minimizes downtime, and helps preserve safety standards that depend on precise equipment compatibility.

Practical tips for buyers: have your panel model and the existing breaker arrangement on hand, and verify that the new unit's pole count and voltage match your service. Because this unit is specified as HE3B110, referencing that part number during ordering is the most reliable way to ensure a correct fit before you commit.