Siemens FXD63A250 - 250 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Siemens FXD63A250 is a 3-pole bolt-on molded case circuit breaker rated at 250 A and 600 V, built to deliver dependable branch circuit protection for panelboards and load centers.

Engineered for reliability in demanding environments, the secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight even in busy electrical spaces. Its thermal-magnetic trip unit delivers stable, repeatable protection: the thermal element handles sustained overloads while the magnetic element reacts swiftly to short circuits, helping minimize damage to wiring and equipment.

This breaker is designed to work seamlessly with matching OEM Siemens load centers and panelboards, ensuring proper fit, reliable coordination, and straightforward integration into existing or new installations. It’s an excellent choice for residential, commercial, and light industrial applications where robust 3-phase protection is essential.

Key features

• Bolt-on mounting for a secure, vibration-resistant bus connection.
• Thermal-magnetic trip provides stable overload protection with fast short-circuit interruption.
• 250 A, 600 V, 3-pole performance suited for demanding branch circuits.
• Molded case construction designed for durability in panelboards and load centers.
• OEM compatibility ensures reliable fit and coordination with Siemens load centers.
• Ideal for residential, commercial, and light industrial electrical systems requiring dependable protection for 3-phase circuits.

Use scenarios

• Retrofits or new installations where a 3-pole, 250 A solution is needed to protect large branch circuits and motor loads.
• Control panels and distribution panels in commercial spaces and light industrial environments requiring robust, reliable protection with a secure mounting method.

Tips for optimal results

• Verify panelboard and bus compatibility with the FXD63A250 before installation to ensure proper fit and coordination.
• Follow all applicable electrical codes and the manufacturer’s installation instructions to maintain warranty and safety.

Technical at a glance

• Manufacturer: Siemens
• Part Number: FXD63A250
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection