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Siemens FXD63B125 FD-Frame Molded Case Circuit Breaker, 125A, 600V AC, 22kA - FD-Frame Siemens Molded Case Circuit Breakers
SiemensFD-Frame Siemens Molded Case Circuit Breakers

Siemens FXD63B125 FD-Frame Molded Case Circuit Breaker, 125A, 600V AC, 22kA

The SIEMENS Molded Case Circuit Breaker is an FD-Frame unit rated for 125 A amps and 600V AC, with a maximum AIR rating of 22kA at 600V AC. It features a fixed instantaneous trip, lug terminal connections, and ABC…

SKU 3G-OTH-20657

Brand
Siemens
Item
FXD63B125 FD-Frame Molded Case Circuit Breaker, 125A, 600V AC, 22kA
Category
FD-Frame Siemens Molded Case Circuit Breakers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
FXD63B125
Series
FXD6-A
Type
22kA at 600V AC, Fixed, Lug, ABC, FXD6-A
AC
600V
Max. AIR Rating
22kA at 600V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
Lug

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Molded Case Circuit Breaker is an FD-Frame unit rated for 125 A amps and 600V AC, with a maximum AIR rating of 22kA at 600V AC. It features a fixed instantaneous trip, lug terminal connections, and ABC phase connection, and belongs to the FXD6-A series (MPN FXD63B125).

Frequently Asked Questions

What is the SIEMENS FXD63B125 molded case circuit breaker used for?

The SIEMENS FXD63B125 is an FD-frame molded case circuit breaker used for overcurrent protection in industrial power distribution systems. It is rated for 125 A amps at 600V AC and is suitable for protecting branch circuits, feeders, and equipment in manufacturing plants, commercial buildings, and utility applications.

What are the specifications of the SIEMENS FXD63B125 circuit breaker?

The SIEMENS FXD63B125 is an FD-frame molded case circuit breaker with a 125 A amp rating, 600V AC voltage, and a maximum AIR rating of 22kA at 600V AC. It features a fixed instantaneous trip, lug terminal connections, and ABC phase connection. It belongs to the FXD6-A series with MPN FXD63B125.

Where to buy the SIEMENS FXD63B125 circuit breaker worldwide?

You can source the SIEMENS FXD63B125 molded case circuit breaker through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Siemens FD-frame breaker.

How to select the correct Siemens molded case circuit breaker for your application?

To select the correct Siemens molded case circuit breaker, verify your system voltage (600V AC max), continuous current (125 A), and available fault current (22kA at 600V AC). Ensure the phase connection (ABC), trip type (fixed instantaneous), and terminal connection (lug) match your panel requirements. Consult Siemens documentation for coordination studies.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens fd-frame siemens molded case circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Molded Case Circuit Breaker: 125 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD62B125)
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SIEMENS Molded Case Circuit Breaker: 125 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD62B125)
SIEMENS Molded Case Circuit Breaker: 50 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B050)
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SIEMENS Molded Case Circuit Breaker: 50 A Amps, 10kA at 240V AC, Fixed, Load Side Lug, ABC, ED2 (MPN ED23B050)
SIEMENS Molded Case Circuit Breaker: 45 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED42B045)
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SIEMENS Molded Case Circuit Breaker: 45 A Amps, 18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4 (MPN ED42B045)
The Siemens ED42B125 is a 125 A molded case circuit breaker from the ED4 series, with a maximum interrupting rating of 18 kA at 480 V AC. It features a fixed instantaneous trip, ABC phase connection, and load side lug terminals. This breaker is used for overcurrent protection in industrial power distribution panels, motor control centers, and branch circuits
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The Siemens ED42B125 is a 125 A molded case circuit breaker from the ED4 series, with a maximum interrupting rating of 18 kA at 480 V AC. It features a fixed instantaneous trip, ABC phase connection, and load side lug terminals. This breaker is used for overcurrent protection in industrial power distribution panels, motor control centers, and branch circuits

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Siemens FXD62B150 is an FD-Frame molded case circuit breaker from the FXD6-A series, rated 150 A with a maximum interrupting rating of 22 kA at 600 V AC. It features a fixed instantaneous trip, lug terminal connections, and ABC phase connection. Suitable for overcurrent protection in electrical distribution systems
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Siemens FXD62B150 is an FD-Frame molded case circuit breaker from the FXD6-A series, rated 150 A with a maximum interrupting rating of 22 kA at 600 V AC. It features a fixed instantaneous trip, lug terminal connections, and ABC phase connection. Suitable for overcurrent protection in electrical distribution systems
Siemens FXD63B200 is a 200A FD-frame molded case circuit breaker from the FXD6-A series. Rated for 600V AC with a maximum interrupting rating of 22kA at 600V AC, it features fixed instantaneous trip, ABC phase connection, and lug terminals. Suitable for overcurrent protection in electrical distribution systems
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Siemens FXD63B200 is a 200A FD-frame molded case circuit breaker from the FXD6-A series. Rated for 600V AC with a maximum interrupting rating of 22kA at 600V AC, it features fixed instantaneous trip, ABC phase connection, and lug terminals. Suitable for overcurrent protection in electrical distribution systems
SIEMENS Molded Case Circuit Breaker: 250 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B250)
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SIEMENS Molded Case Circuit Breaker: 250 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B250)
SIEMENS Molded Case Circuit Breaker: 175 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B175)
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SIEMENS Molded Case Circuit Breaker: 175 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B175)
SIEMENS Molded Case Circuit Breaker: 250 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD62B250)
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SIEMENS Molded Case Circuit Breaker: 250 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD62B250)
SIEMENS Molded Case Circuit Breaker: 100 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B100)
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SIEMENS Molded Case Circuit Breaker: 100 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B100)
SIEMENS Molded Case Circuit Breaker: 150 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B150)
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SIEMENS Molded Case Circuit Breaker: 150 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD63B150)
SIEMENS Molded Case Circuit Breaker: 175 A Amps, 22kA at 600V AC, Fixed, Lug, ABC, FXD6-A, 600V AC (MPN FXD62B175)
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