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Siemens FD63B225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Siemens
FD63B225
Molded Case Circuit Breaker
Brand
Siemens
SKU
FD63B225
Quantity
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Siemens FD63B225 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Siemens FD63B225 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | FD63B225 |
| Series | FD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 18kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 (Subfeed), P2, P3, P4, P5 Panelboards, Switchboards, Motor Control Centers |
| 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included, 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, Interchangeable Trip Unit |
Quantity
Siemens FD63B225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | FD63B225 |
| Series | FD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 18kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 (Subfeed), P2, P3, P4, P5 Panelboards, Switchboards, Motor Control Centers |
| 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included, 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, Interchangeable Trip Unit |
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Description
Built for heavy-duty commercial use, the Siemens FD63B225 is a 3-pole, 225A molded case circuit breaker. It utilizes proven thermal-magnetic trip technology to provide long-time and instantaneous (LI) protection. Designed as a unit mount MCCB, it installs into Siemens P1 subfeed, P2, P3, P4, and P5 panelboards, as well as MCCs. It can substitute for FXD63B225 breakers. This Sentron series breaker is rated 35kAIC at 480VAC and features an interchangeable trip unit for adaptable performance.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FD63B225 |
| Series | FD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 18kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P1 (Subfeed), P2, P3, P4, P5 Panelboards, Switchboards, Motor Control Centers |
| 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included, 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, Interchangeable Trip Unit |
Product FAQs
6 answersWhat is the difference between the Siemens FD63B225 and the FXD63B225?
The FD63B225 features an interchangeable trip unit and ships unassembled with line and load lugs included. The FXD63B225 has a non-interchangeable trip unit and ships fully assembled from the factory without lugs.
Are lugs included with the FD63B225 circuit breaker?
Yes, the FD63B225 ships with TA1FD350A line and load lugs included. The breaker frame, trip unit, and lugs are shipped unassembled and must be put together in the field.
Which Siemens panelboards are compatible with the FD63B225?
This unit mount breaker is designed for use in Siemens P1 subfeed applications, as well as P2, P3, P4, and P5 panelboards. It is also compatible with Siemens switchboards and motor control centers.
Can the Siemens FD63B225 be reverse fed?
No. Under UL 489 requirements, circuit breakers with interchangeable trip units like the FD63B225 cannot be reverse fed and are marked with LINE and LOAD. If your application requires reverse feeding, you must use the non-interchangeable trip version, catalog number FXD63B225.
What does the LI trip function mean on this breaker?
The LI designation indicates the thermal magnetic trip unit provides Long-Time and Instantaneous protection. The long-time function protects against sustained overloads with a fixed thermal element, while the instantaneous function protects against short circuits using an adjustable magnetic trip.
What is the difference between the FD63B225 and the FD63F250?
The FD63B225 is a complete 225A breaker kit that includes the frame, a 225A trip unit, and lugs. The FD63F250 is the bare 250A maximum FD frame only, which requires a separate trip unit and lugs to operate.
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