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Siemens FD63B110 Molded Case Circuit Breaker
- 110A
- 3 Pole
- Unit Mount
Siemens
FD63B110
Molded Case Circuit Breaker
Brand
Siemens
SKU
FD63B110
Quantity
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Siemens FD63B110 - 110A 3 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty commercial and industrial power distribution, this 110-amp SENTRON series breaker utilizes an interchangeable thermal-magnetic trip unit. It provides fixed long-time and adjustable instantaneous magnetic protection for precise system coordination. The device installs seamlessly into Siemens P1 through P5 panelboards, switchboards, and motor control centers. With a 35kAIC rating at 480V, it offers standard interrupting capacity for demanding electrical infrastructure.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FD63B110 |
| Series | FD6 |
| Amperage | 110A |
| 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, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| 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 answersWhich Siemens panelboards are compatible with the FD63B110?
This breaker is designed for use in Siemens P1 (as a subfeed breaker), P2, P3, P4, and P5 panelboards. It is also suitable for Siemens switchboards and motor control centers.
What type of mounting does the FD63B110 require?
This is a unit mount circuit breaker. It bolts directly to the mounting pan or enclosure backplate rather than plugging into or bolting onto a panelboard busbar.
How does the adjustable magnetic trip function work on this FD frame breaker?
The thermal element is fixed for long-time overload protection, while the magnetic instantaneous trip is adjustable. This allows electricians to fine-tune the short-circuit response to coordinate with downstream devices or specific load inrush currents.
What are the acceptable wire sizes for the standard load side lugs?
The standard lugs accept 6 AWG to 350 kcmil copper wire, or 4 AWG to 350 kcmil aluminum wire.
Can the Siemens FD63B110 replace older ITE circuit breakers?
Yes, Siemens acquired ITE and continued manufacturing the Sentron family. The FD63B110 is a direct replacement for older ITE FD6 frame breakers with the same specifications.
Is the FD63B110 rated for direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 500VDC, providing an interrupting capacity of 18kA.
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