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Siemens FXD63B100L Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Siemens
FXD63B100L
Molded Case Circuit Breaker
Brand
Siemens
SKU
FXD63B100L
Quantity
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Siemens FXD63B100L - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens FXD63B100L is a 3-pole, 100A molded case circuit breaker from the Sentron family. It delivers robust long-time and instantaneous (LI) overcurrent protection. This unit-mount breaker integrates into Siemens P1, P2, and P3 panelboards, as well as compatible switchboards. It comes factory-equipped with line and load lugs (TA1FD350A). Rated for 65kAIC at 240VAC, the FD-frame breaker is HACR and reverse-feed rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FXD63B100L |
| Series | FXD6 |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 30kA @ 250VDC, 18kA @ 500VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P1, P2, P3), Switchboards, Enclosures |
| Wire Gauge | 6 AWG-350 kcmil (Cu), 4 AWG-350 kcmil (Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 AWG (Cu), 4 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs (TA1FD350A) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
6 answersWhat is the difference between the Siemens FXD63B100 and FXD63B100L?
The L suffix in the FXD63B100L catalog number indicates that the breaker comes factory-equipped with line and load lugs. The FXD63B100 is the same breaker frame but is supplied without lugs.
Which panelboards are compatible with the FXD63B100L circuit breaker?
This FD frame breaker is designed for installation in Siemens Sentron Series panelboards, specifically Type P1, P2, and P3, as well as compatible Siemens switchboards and standalone enclosures.
What wire sizes are accepted by the standard lugs on the FXD63B100L?
The included lugs accept 6 AWG to 350 kcmil copper wire, or 4 AWG to 350 kcmil aluminum wire.
How is the trip unit adjusted on the FXD63B100L?
This breaker features a thermal magnetic trip unit with a fixed thermal setting of 100A and an adjustable magnetic setting. The instantaneous magnetic trip can be adjusted using the dial on the front of the breaker to coordinate with downstream devices or handle specific inrush currents.
What does the LI trip function code indicate for this breaker?
The LI designation means the breaker provides Long-Time and Instantaneous overcurrent protection. The long-time thermal function protects against sustained overloads, while the instantaneous magnetic function protects against short circuits.
What safety steps are required before installing or servicing the FXD63B100L?
Always ensure the breaker is in the OFF or tripped position and that all power supplying the panelboard or enclosure is completely de-energized and locked out before installing the breaker, terminating wires, or servicing the unit.
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