Siemens FD63T125 125 Amp Molded Case Circuit Breaker Trip Unit – 3 Pole – Interchangeable – Thermal-Magnetic – FD Frame

The Siemens FD63T125 is a 125 Amp, 3-pole interchangeable trip unit designed for compatible Siemens / ITE molded case circuit breaker applications. It features adjustable thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. The compact trip unit is compatible with FD, FXD, HFD, HFXD, HHFD, HHFXD, and CFD frame types.

Specifications

• Manufacturer: Siemens
• Brand: Siemens / ITE
• Product Type: Molded Case Circuit Breaker Trip Unit
• Frame: FD
• Catalog Number / MPN: FD63T125
• Primary Rating: 125 Amp
• Poles / Configuration: 3 Pole
• Trip Type: Thermal-Magnetic
• Trip Unit: Interchangeable
• Trip Functions: LI – Long-Time and Instantaneous
• Trip Adjustment: Adjustable Thermal-Magnetic
• Connection / Mounting: Bolt-On
• Compatible Frames: FD, FXD, HFD, HFXD, HHFD, HHFXD, CFD

Part Numbers & Identification

• Manufacturer: Siemens
• Brand: Siemens / ITE
• Catalog Number: FD63T125
• Frame: FD
• Current Rating: 125 A
• Pole Count: 3 Pole
• Product Type: Interchangeable Thermal-Magnetic Trip Unit
• Trip Functions: LI – Long-Time and Instantaneous
• Compatible Frames: FD, FXD, HFD, HFXD, HHFD, HHFXD, CFD
• UPC: 783643211940

Compatibility

The Siemens FD63T125 is designed for compatible Siemens / ITE FD-frame molded case circuit breakers and is specified for use with FD, FXD, HFD, HFXD, HHFD, HHFXD, and CFD frame types. Verify the specific breaker frame, system voltage, mounting configuration, and trip-unit compatibility before installation.

Returns are easy

You may return items within 10 days of delivery for a refund.

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