Siemens FD63T110 - 110 A, 480 V, 3-Pole Circuit Breaker | AmpState

Siemens FD63T110 is a 110A, 480V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its compact molded-case design helps maximize panel space, making it a practical choice for dense electrical layouts in commercial and light industrial environments.

The thermal-magnetic trip unit provides stable, repeatable protection performance, balancing rapid fault clearing with reduced nuisance trips across varying temperatures. This means fewer unexpected outages and consistent protection for critical loads and equipment.

Why FD63T110 stands out

• Space-efficient design frees up valuable panel real estate in crowded enclosures.
• Thermal-magnetic protection delivers reliable overcurrent and short-circuit response with predictable trip characteristics.
• OEM-compatible engineered for straightforward installation in matching Siemens load centers and panelboards, simplifying upgrades and replacements.
• Three-pole, 480V operation supports typical three-phase distribution found in commercial and light industrial systems.

Technical specifications

• Manufacturer: Siemens
• Part Number: FD63T110
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 110A
• Voltage Rating: 480V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Commercial spaces—offices, retail environments, and small data centers—where reliable 3‑phase protection is essential.
• Light industrial facilities with 480V distribution needing compact, OEM-compatible breakers for seamless panel upgrades.
• Panel replacements or upgrades in space-constrained installations where maximizing panel capacity is a priority.

Choosing the Siemens FD63T110 means selecting a trusted, high-performance protection solution that aligns with Siemens load centers for a clean, reliable, long-lasting distribution system. It’s the practical, purpose-built choice for safeguarding circuits, keeping downtime to a minimum, and ensuring consistent operation across your commercial and light industrial infrastructure.