Siemens | HED42M100 | Circuit Breaker | 100A | 2-Pole | 480V

The Siemens HED42M100 is a purpose-built circuit breaker engineered for serious industrial and commercial electrical systems. Rated at 100A with a robust 2-pole design and a 480V rating, this unit delivers reliable overcurrent protection for demanding 480V applications. Designed for maintenance, retrofit, and replacement projects, it fits into compatible panels with precision, helping you restore uptime quickly and safely.

Key specifications at a glance

• Amperage: 100A
• Poles: 2-Pole
• Voltage rating: 480V
• Part number: HED42M100
• Ideal use cases: maintenance, retrofit, and replacement in compatible equipment
• Compatibility note: Confirm fit and ratings before ordering; the part number is the best reference for compatibility.

Why this Siemens breaker stands out

When you need dependable protection for a 480V system, the Siemens HED42M100 delivers more than a generic replacement. Its 2-pole configuration ensures both live conductors trip together, minimizing arc-flash risk and protecting downstream equipment such as motors, drives, and compressors. Built with Siemens engineering standards, it’s designed to maintain electrical integrity in environments where downtime isn’t acceptable and OEM compatibility is critical.

Ideal use scenarios

• Replacement in industrial panelboards or switchgear that require a 100A, 2-pole, 480V protection device
• Retrofits in manufacturing lines, HVAC systems, conveyors, and other equipment powered by 480V services
• Maintenance replacements to preserve original equipment protection characteristics and trip behavior

Practical considerations for installation and compatibility

Before purchasing, verify that your enclosure and panelboard are rated for 480V and that a 2-pole 100A device matches the original specifications. Use the part number HED42M100 as the primary reference to ensure a proper fit and electrical characteristics. When in doubt, match the breaker to the OEM documentation and confirm the trip curve and mounting style align with your panel’s design.

What customers typically gain with the HED42M100

• Faster restoration of electrical protection in critical loads after a fault or maintenance outage
• Consistent, class-verified performance aligned with Siemens engineering expectations
• Clear, reliable compatibility guidance through a familiar part reference that simplifies ordering

If your project requires a precise, drop-in replacement for a 480V, 100A, 2-pole circuit protection solution, the Siemens HED42M100 offers the reliability, compatibility, and performance you need to keep your systems protected and productive.