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Siemens Molded Case Circuit Breaker: 125 A Amps, 18kA at 480V AC, Fixed, Load Side Lug - ED-Frame Siemens Molded Case Circuit Breakers
SiemensED-Frame Siemens Molded Case Circuit Breakers

Siemens Molded Case Circuit Breaker: 125 A Amps, 18kA at 480V AC, Fixed, Load Side Lug

The Siemens ED-Frame Molded Case Circuit Breaker (SKU 6FNC8, MPN ED42B125) is a 125 A rated device from the ED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 18kA at 480V AC, and ABC phase…

SKU 3G-OTH-22119

Brand
Siemens
Item
Molded Case Circuit Breaker: 125 A Amps, 18kA at 480V AC, Fixed, Load Side Lug
Category
ED-Frame Siemens Molded Case Circuit Breakers
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Technical Specifications

Siemens
Manufacturer Part Number
ED42B125
Series
ED4
Type
18kA at 480V AC, Fixed, Load Side Lug, ABC, ED4
Max. AIR Rating
18kA at 480V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
Load Side Lug
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens ED-Frame Molded Case Circuit Breaker (SKU 6FNC8, MPN ED42B125) is a 125 A rated device from the ED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 18kA at 480V AC, and ABC phase connection with load side lug terminals.

Frequently Asked Questions

What is the Siemens ED42B125 molded case circuit breaker used for?

The Siemens ED42B125 is a 125 A molded case circuit breaker from the ED4 series, used for overcurrent protection in industrial power distribution panels, motor control centers, and branch circuits. It is suitable for applications requiring a fixed instantaneous trip and ABC phase connection, with a maximum AIR rating of 18kA at 480V AC.

What are the specifications of the Siemens ED42B125 circuit breaker?

The Siemens ED42B125 is a 125 A molded case circuit breaker from the ED4 series. It has a fixed instantaneous trip, a maximum AIR rating of 18kA at 480V AC, ABC phase connection, and load side lug terminals. The manufacturer part number is ED42B125, and it is an ED-frame device.

Where to buy the Siemens ED42B125 circuit breaker worldwide?

You can source the Siemens ED42B125 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; we provide reliable sourcing for this ED4 series breaker.

How to select the correct Siemens ED4 circuit breaker for your application?

To select the correct Siemens ED4 circuit breaker, verify the continuous current rating (125 A for the ED42B125), the maximum AIR rating (18kA at 480V AC), and the phase connection (ABC). Ensure the fixed instantaneous trip matches your system's coordination requirements. Consult the Siemens ED4 series documentation for application-specific guidelines.

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 ed-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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