Siemens FXD63B110L - 110 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens FXD63B110L, a 3-pole bolt-on molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a 110 A rating and a 600 V maximum, this unit is engineered for residential, commercial, and light industrial applications that demand robust, reliable protection.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for consistent electrical performance in challenging environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding appropriately to both overloads and short circuits.
• 3-pole design tailored for 3-phase systems, helping maintain balanced protection across multiple conductors.
• OEM compatibility designed to pair with matching Siemens loadcenters and panelboards for seamless integration and reliable operation.
• Versatile applications suitable for residential, commercial, and light industrial settings where dependable branch protection is essential.

Technical specifications

• Manufacturer: Siemens
• Part Number: FXD63B110L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 110 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• New or replacement installations in Siemens panelboards and loadcenters requiring robust 3-phase protection.
• Commercial spaces with multiple 3-phase circuits needing reliable protection for distribution panels.
• Light industrial setups where vibration resistance and secure mounting reduce maintenance and downtime.

Why this model matters

The FXD63B110L combines a secure bolt-on connection with a thermal-magnetic trip mechanism, delivering dependable protection that helps prevent equipment damage and electrical fires caused by overloads or short circuits. By aligning with Siemens loadcenters and panelboards, it ensures consistent electrical characteristics and straightforward installation, reducing the guesswork during panel assembly and service upgrades.

In short, the Siemens FXD63B110L is a purpose-built solution for professionals who demand precise, durable protection across 3-phase systems in a variety of environments.