Siemens FXD63B250L Molded Case Circuit Breaker – 250A – 3-Pole / 3-Phase – 600V – 35kA @ 480V – Bolt-On – Sentron FXD Series

The Siemens FXD63B250L is a 250A, 3-pole, 3-phase molded case circuit breaker from the Siemens Sentron Type FXD Series. It features thermal-magnetic protection with a non-interchangeable trip and Long-Time and Instantaneous (LI) trip functions.

The FXD63B250L is rated for 600V and provides a 35kA interrupting rating at 480V with standard interrupting capacity. It uses a bolt-on mounting configuration, is rated for operation at 40°C, and is UL Listed for reverse-fed applications. No lugs are installed.

Specifications:

• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Product Family: Sentron
• Series: FXD
• Type: FXD
• Catalog No.: FXD63B250L
• Current Rating: 250A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 600V
• Interrupting Rating: 35kA @ 480V
• Interrupting Capacity: Standard
• Protection Type: Thermal-Magnetic
• Trip Type: Non-Interchangeable
• Trip Functions: Long-Time and Instantaneous (LI)
• Mounting Type: Bolt-On
• Breaker Configuration: Complete Breaker
• Lugs: Not Installed
• Temperature Rating: 40°C
• Reverse Feed: UL Listed for Reverse-Fed Applications
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Siemens

Part Numbers & Identification:

• Manufacturer Part Number (MPN): FXD63B250L
• Catalog Number: FXD63B250L
• Model: FXD63B250L
• Product Family: Siemens Sentron Circuit Breakers
• Series: FXD
• Type: FXD
• Brand: Siemens
• Manufacturer: Siemens
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 250A
• Trip Configuration: Non-Interchangeable LI Trip
• UPC:783643006126

Compatibility:

Designed for use with compatible Siemens Sentron FXD Series electrical distribution equipment that accepts FXD Series bolt-on molded case circuit breakers. The FXD63B250L provides 250A, 3-pole thermal-magnetic overcurrent protection for compatible 600V electrical distribution applications.

The breaker features a non-interchangeable LI trip, bolt-on mounting, and no installed lugs. It is also identified as UL Listed for reverse-fed applications. Always verify the specific panelboard or electrical equipment model, approved breaker type, system voltage, available fault current, pole configuration, trip-unit requirements, lug selection, mounting arrangement, and installation requirements before installation.

Certifications:

• UL Listed for Reverse-Fed Applications
• Siemens Sentron FXD Series
• 250A Rated
• 3-Pole / 3-Phase
• 600V Rated
• 35kA @ 480V Interrupting Rating
• Standard Interrupting Capacity
• Thermal-Magnetic Protection
• Non-Interchangeable Trip
• Long-Time and Instantaneous (LI) Trip Functions
• Bolt-On Mounting
• Lugs Not Installed
• 40°C Rated

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