Siemens HE3M030 30A 3-Pole 480 V Circuit Breaker

The Siemens HE3M030 30A 3-Pole 480 V Circuit Breaker is built to deliver dependable, three-phase protection for demanding industrial and commercial electrical panels. With a 30 A rating and a 480 V operating capability, this unit provides precise overcurrent protection for three-phase circuits while helping you keep your distribution up and running.

Key specifications at a glance

• Current rating: 30 A
• Poles: 3
• Voltage rating: 480 V
• Part number: HE3M030

Why this 3-pole design matters

In three-phase systems, synchronized protection across all phases is essential. The HE3M030’s three-pole configuration ensures all phases trip together, reducing the risk of phase imbalances that can damage motors, drives, and other equipment. Its 480 V rating makes it suitable for a wide range of industrial applications, from motor feeders to main distribution trunks, helping streamline panel layouts by consolidating protection into a single, reliable device.

Ideal use cases

• Three-phase motor feeders in manufacturing lines, pumps, and conveyors
• Industrial distribution panels requiring compact, single-device protection across all phases
• HVAC and mechanical systems in commercial and industrial facilities

Practical installation and compatibility notes

Choose the HE3M030 when wiring Siemens-based panels or when replacing a similar Siemens component in a 3-phase, 480 V system. Ensure proper terminal torque and adherence to relevant electrical codes during installation. The part number HE3M030 guarantees you’re selecting the exact Siemens unit designed for 3-pole, 480 V service, helping maintain consistent protection characteristics and simplifying replacement in service envelopes that rely on Siemens components.

Benefits over alternative approaches

Compared with using multiple single- or dual-pole breakers, a single 3-pole unit delivers unified protection, reduces wiring complexity, and minimizes the chance of mismatched protection across phases. This leads to faster maintenance, clearer labeling, and safer operation for three-phase equipment.

How it fits into your workflow

For panel builders and system integrators, the HE3M030 provides a straightforward, reliable solution for safeguarding three-phase circuits up to 480 V. In daily operations, you’ll appreciate the clear, cohesive protection across all phases, smoother troubleshooting, and the confidence that essential equipment remains guarded against overcurrent events.