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Siemens FXD63B080L Molded Case Circuit Breaker
- 80A
- 3 Pole
- Unit Mount
Siemens
FXD63B080L
Molded Case Circuit Breaker
Brand
Siemens
SKU
FXD63B080L
Quantity
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Siemens FXD63B080L - 80A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial distribution, the Siemens FXD63B080L is an 80A, 3-pole molded case circuit breaker. Unlike standard models, this FD-frame breaker comes factory-equipped with line and load lugs (TA1FD350A) for immediate wiring. This unit mount MCCB installs into Siemens Sentron P1, P2, and P3 panelboards, as well as switchboards and enclosures. It provides long-time and instantaneous (LI) protection. Rated 35 kAIC at 480VAC, it features an adjustable magnetic trip.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FXD63B080L |
| Series | FXD6 |
| Amperage | 80A |
| 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, Rotary Handle, Motor Operator |
|---|---|
| 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 |
Product FAQs
6 answersWhat is the difference between the Siemens FXD63B080 and the FXD63B080L?
The L suffix in the FXD63B080L catalog number indicates that the breaker comes factory-equipped with line and load lugs (part number TA1FD350A). The standard FXD63B080 does not include lugs.
Which lugs are included with the FXD63B080L, and what wire sizes do they accept?
This breaker includes TA1FD350A line and load lugs. They accept 6 AWG to 350 kcmil copper wire, or 4 AWG to 350 kcmil aluminum wire.
Can I install the FXD63B080L in Siemens P1, P2, or P3 panelboards?
Yes, this FD frame breaker is compatible with Siemens Sentron P1, P2, and P3 panelboards. However, it requires the appropriate FD frame strap kit or mounting hardware specific to your panelboard type for installation.
How must the FXD63B080L be wired for 500VDC applications?
When applying this 3 pole breaker on 500VDC ungrounded systems, the power supply must be connected in series across the poles. This zig-zag configuration ensures the voltage is uniformly distributed across the breaker terminals.
Is the trip unit on the FXD63B080L adjustable?
The thermal trip function is fixed, but the instantaneous magnetic trip is adjustable to help coordinate with motor inrush currents or other system requirements.
Can the FXD63B080L be reverse fed?
Yes, Siemens FXD6 breakers feature a non-interchangeable trip unit and are UL listed for reverse feed applications.
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