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Siemens CFD63B225L Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Siemens
CFD63B225L
Molded Case Circuit Breaker
Brand
Siemens
SKU
CFD63B225L
Quantity
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Siemens CFD63B225L - 225A 3 Pole Molded Case Circuit Breaker
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Description
Providing reliable overcurrent defense for commercial facilities, the CFD63B225L is a 225A, 3-pole molded case circuit breaker. This Sentron FD frame device features a thermal-magnetic trip unit with adjustable instantaneous magnetic (LI) protection. This unit mount MCCB is designed for integration into Siemens Sentron panelboards, switchboards, and enclosures. Boasting a 200 kAIC rating at 480VAC, this current-limiting breaker is suitable for demanding electrical systems.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CFD63B225L |
| Series | CFD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 100kA @ 600VAC, 30kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, 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 |
| Standards | HACR Rated, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Fuseless |
Product FAQs
5 answersWhich panelboards are compatible with the CFD63B225L?
This breaker is designed for installation in Siemens Sentron panelboards, switchboards, and standalone enclosures. It requires mounting hardware specific to FD frame unit mount breakers.
What is the correct replacement lug kit for this breaker?
The standard replacement lug kit is Siemens part number TA1FD350A. This single conductor lug accepts 6 AWG to 350 kcmil copper or 4 AWG to 350 kcmil aluminum wire.
What does the LI trip function indicate on this model?
The LI code means the breaker uses a thermal magnetic trip unit providing Long-Time (L) and Instantaneous (I) protection. The thermal overload protection is fixed, while the magnetic short circuit trip is adjustable.
How is a unit mount breaker like the CFD63B225L installed?
As a unit mount or feed-thru breaker, it bolts directly to the enclosure backpan or mounting plate. It connects to the power source via cables wired to the line side lugs, rather than plugging directly onto a panelboard busbar.
Is the CFD63B225L a current-limiting circuit breaker?
Yes, the CFD6 series features a fuseless, current-limiting design. This allows the breaker to achieve extremely high interrupting ratings, such as 200kA at 480VAC, to protect downstream equipment from severe fault currents.
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