Siemens | HFD63B100L | Circuit Breaker | 3-Pole

Siemens HFD63B100L is a 3-pole circuit breaker designed for reliable three-phase protection in commercial and industrial electrical panels. Built for maintenance, retrofit, and replacement scenarios, this model helps keep power distribution safe and uninterrupted as you upgrade or refresh your systems.

• 3-Pole design for three-phase systems delivers synchronized protection across all three conductors, ensuring balanced shutdowns and reducing the risk of partial faults in your panel.
• Versatile maintenance, retrofit, and replacement use ideal for upgrading existing installations or swapping out aging breakers in compatible Siemens and three-phase setups.
• Clear compatibility reference the part number HFD63B100L is your best guide for matching specs and fit — always confirm fit and ratings before ordering.
• Efficient, field-ready replacement engineered to plug into compatible panels with minimal downtime, helping you maintain continuous operation in busy facilities.
• Trusted Siemens reliability part of a proven line of circuit protection that supports consistent performance in demanding environments.

This product is ideal for facility managers, electrical contractors, and maintenance teams tackling panel upgrades, service expansions, or equipment refresh projects. Use it when you need a dependable 3-phase protection solution that aligns with your existing Siemens infrastructure and adheres to your panel’s required specifications. Remember to verify fit and ratings against the panel’s label and your project requirements to ensure a seamless replacement or retrofit.