Siemens CFD63B100L - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens CFD63B100L is a robust 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 100 A rating and a 600 V maximum, it handles demanding residential, commercial, and light industrial applications while delivering precise protection in a compact form factor.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight under demanding operating conditions.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance by combining overload protection with fast short-circuit response, helping to prevent damage before it starts.
• OEM compatibility is built in—designed to pair with matching Siemens load centers and panelboards for straightforward installation, reliable coordination, and streamlined maintenance.
• Versatile for multiple environments suited for residential, commercial, and light industrial installations where dependable three-phase distribution and branch protection are essential.

• Manufacturer: Siemens
• Part Number: CFD63B100L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

In real-world service, this breaker shines as a reliable upgrade or replacement in Siemens-compatible panels. The bolt-on design helps ensure a solid mechanical connection, while the thermal-magnetic protection keeps downstream components safe from both overload and sudden faults. Its three-pole configuration is ideal for three-phase distribution, powering multi-line feeds and balanced loads with confidence. If you’re stocking your electrical drive with genuine Siemens components, the CFD63B100L provides a precise fit, predictable trip characteristics, and lasting performance across a range of demanding settings.