Siemens FD63W225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Quantity
Siemens FD63W225 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for circuit protection, the Siemens FD63W225 is a molded case circuit breaker with standard protection. It is rated for 225A and 600V, with 3 poles for 3-phase operation. This breaker is part of the FD series and uses bolt-on mounting. It is UL Listed and CSA Certified, and its weight is 1.29 lb.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FD63W225 |
| Series | FD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC |
| Phase | 3 |
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| 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 answersHow should I use the 225A rating when selecting the Siemens FD63W225?
The 225A rated current is a selection point for coordinating the breaker with the circuit load and conductor ampacity. Check both when sizing circuit protection rather than choosing by load alone.
How does the 600V rating guide circuit selection?
The 600V rating sets the breaker's rated voltage limit. Select it for a circuit whose operating voltage is within that rating.
Why choose a three-pole breaker for a three-phase circuit?
This breaker has three poles for a three-phase application, placing the three phase conductors under one breaker's protection. Match the pole count and phase arrangement to the circuit being protected.
What does bolt-on mounting mean for installation?
Bolt-on mounting requires bolted attachment rather than a plug-in mounting method. Plan for secure attachment and proper tightening of the mounting hardware during installation.
How do UL Listed and CSA Certified approvals help with selection?
These approvals indicate evaluation against applicable product safety requirements. They help when selecting a breaker for work that requires UL listing or CSA certification.
What does molded-case construction mean for this breaker?
A molded-case breaker encloses its switching and protective components in an insulating housing. This construction makes it a self-contained circuit-protection device, with current, voltage and pole ratings guiding selection.
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