Siemens | HE3M100 | Circuit Breaker | 100A | 3-Pole | 480V | Bolt-On

Siemens HE3M100 is a 100A, 3-pole circuit breaker engineered for robust protection in 480V, three‑phase systems. With a bolt-on mounting design, it’s purpose‑built for quick, secure installation during maintenance, retrofit, or replacement projects where exact specifications matter.

• Amperage: 100 A
• Poles: 3-Pole
• Voltage rating: 480V
• Mounting style: Bolt-On
• Part reference: HE3M100

Why this matters to your operation:

• Reliable three‑phase protection: Designed to interrupt fault currents in 480V distribution networks, shielding motors, feeders, and equipment from damage.
• Bolt‑on convenience: The bolt‑on mounting provides a solid mechanical connection, making installation straightforward in panels that support this format and reducing retrofit downtime.
• Accurate replacement fit: The part number HE3M100 is the best reference for compatibility, ensuring you match the exact trip characteristics and mounting footprint for your panel.
• Maintenance-friendly: A practical choice for service upgrades or legacy system refreshes where a dependable, standard 3‑pole breaker is required.

Ideal for:

• Industrial facilities upgrading or maintaining 480V, three‑phase distribution
• Manufacturing lines needing a 100A feeder protection solution
• Retrofit projects where existing gear expects a bolt‑on Siemens breaker with precise dimensions

How it compares to other solutions:

• Bolt‑on breakers like the HE3M100 offer a secure, mechanical interface suitable for panels designed for this mounting style, providing stable contact and reliable performance under load.
• In environments where exact compatibility is critical, relying on the precise part number (HE3M100) helps ensure correct electrical ratings, pole count, and voltage without guesswork.

Practical tips for installation and use:

• Always confirm the breaker fits your specific Siemens panel and that the panel is rated for 480V operation before ordering.
• Power down equipment and follow proper safety protocols prior to any replacement or retrofit work.
• Use the appropriate mounting hardware and refer to Siemens installation guidelines to ensure proper torque and alignment.
• Keep the HE3M100 on hand as a dedicated spare for rapid maintenance or retrofit cycles.