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Siemens FXD62B125L Molded Case Circuit Breaker
- 125A
- 2 Pole
- Unit Mount
Siemens
FXD62B125L
Molded Case Circuit Breaker
Brand
Siemens
SKU
FXD62B125L
Quantity
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Siemens FXD62B125L - 125A 2 Pole Molded Case Circuit Breaker
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Description
Featuring factory-installed line and load lugs, the Siemens FXD62B125L is a 2-pole, 125A molded case circuit breaker. It is part of the Sentron FD frame family for industrial facilities. This unit mount breaker installs into Siemens Type P1, P2, and P3 panelboards, and compatible switchboards. It accepts 6 AWG to 350 kcmil copper or aluminum wire. With a 35kAIC interrupt rating at 480VAC, it utilizes a non-interchangeable thermal magnetic trip unit. It is HACR and reverse feed rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FXD62B125L |
| Series | FXD6 |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P1, P2, P3), Switchboards, Enclosures |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line & Load Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, Trip-Free Mechanism |
Product FAQs
5 answersWhich Siemens panelboards are compatible with the FXD62B125L circuit breaker?
This Sentron FD-frame breaker is compatible with Siemens Type P1, P2, and P3 panelboards, as well as standard Siemens switchboards and enclosures.
What are the minimum wire size requirements for copper versus aluminum conductors on the FXD62B125L?
The factory lugs accept copper wire as small as 6 AWG, while aluminum wire requires a minimum size of 4 AWG. Both materials support a maximum conductor size of 350 kcmil.
Can the FXD62B125L be used in DC circuits?
Yes, this breaker is rated for direct current applications with an interrupting capacity of 30kA at 250VDC.
What does the LI trip function indicate on the FXD62B125L?
The LI designation means the breaker provides Long-Time and Instantaneous protection. It uses a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection.
What does the unit-mount, feed-thru configuration mean for installation?
This configuration indicates the breaker mounts directly to the enclosure chassis or backpan rather than plugging into a busbar. It relies on standard lug connections for both the line and load sides.
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