Siemens HF63B100 Circuit Breaker, 100A, 3-Pole, 600V

The Siemens HF63B100 Circuit Breaker is a rugged, industrial-grade overcurrent protector built for reliability in demanding service, maintenance, and replacement projects. With a 100 A rating and a 3-pole configuration, it provides robust protection for three-phase systems up to 600 V, helping keep motors, drives, and other heavy loads safe from overloads and short circuits.

Key specifications at a glance

• Amperage: 100 A
• Pole configuration: 3-pole (three-phase)
• Voltage rating: 600 V
• Application: Industrial circuit protection for service, maintenance, and replacement projects
• Part number for compatibility: HF63B100

Why it matters in your operation

In industrial environments, reliable three-phase protection is essential. The HF63B100’s three-pole design ensures synchronized disconnection across all phases, reducing the risk of unbalanced loads and equipment damage. Built to withstand the rigors of ongoing maintenance cycles and frequent panel replacements, it helps minimize downtime and protect wiring, motors, and control systems.

Ideal use cases

• New installations in industrial control panels requiring up to 600 V three-phase protection
• Replacement of aging or failed breakers in three-phase systems
• Maintenance shutdowns where consistent, predictable trip performance is critical

Compatibility and fit guidance

Notes: Verify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we'll help.