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Siemens FXD63B150L Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Siemens
FXD63B150L
Molded Case Circuit Breaker
Brand
Siemens
SKU
FXD63B150L
Quantity
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Siemens FXD63B150L - 150A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial power distribution, the Siemens FXD63B150L is a 150A, 3-pole MCCB from the Sentron family. It provides dependable long-time and instantaneous (LI) protection for demanding systems. This FD-frame breaker installs into Siemens P1-P3 panelboards and Sentron switchboards. It includes TA1FD350A line and load lugs, accepting 6 AWG to 350 kcmil conductors for straightforward wiring. Rated 35kAIC at 480V, it handles substantial fault currents and is fully HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FXD63B150L |
| Series | FXD6 |
| Amperage | 150A |
| 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 P1, P2, P3 Panelboards, Sentron Switchboards, Motor Control Centers, Sentron Enclosures |
| Wire Gauge | 6 AWG - 350 kcmil |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Mechanical Interlock |
|---|---|
| Accessories | Line & Load Lugs (TA1FD350A) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
7 answersWhat is the difference between the Siemens FXD63B150 and the FXD63B150L?
The L suffix in the FXD63B150L catalog number indicates that the breaker comes factory equipped with line and load side lugs. The base FXD63B150 model requires lugs to be sourced separately.
Which Siemens panels and enclosures are compatible with the FXD63B150L?
This FD frame breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as Sentron switchboards, motor control centers, and Sentron enclosures.
What wire sizes do the included lugs on this breaker accept?
The factory installed lugs accept wire gauges ranging from 6 AWG to 350 kcmil.
Is the trip unit on the FXD63B150L adjustable?
Yes, this thermal magnetic breaker features a fixed thermal trip for overload protection and an adjustable magnetic trip for short circuit protection.
Can the FXD63B150L be used in DC electrical systems?
Yes, in addition to its AC ratings, this breaker is rated for DC applications. It provides up to 30kAIC at 250VDC and 18kAIC at 500VDC.
How does this breaker mount into the panel?
The FXD63B150L is a unit mount, feed-thru circuit breaker. It is designed to be individually mounted and wired directly via its line and load lugs, rather than plugging directly onto a panelboard bus.
What does the LI trip function code on this breaker indicate?
The LI designation means the breaker includes Long Time and Instantaneous trip functions. The Long Time function handles sustained overloads, while the Instantaneous function clears severe short circuits immediately.
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