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Siemens Molded Case Circuit Breaker: 125 A Amps, 42kA 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, 42kA at 480V AC, Fixed, Load Side Lug

The Siemens ED-Frame Molded Case Circuit Breaker (SKU 6GNC6) is a 125 A rated device from the HED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 42kA at 480V AC, and ABC phase connection…

SKU 3G-OTH-22138

Brand
Siemens
Item
Molded Case Circuit Breaker: 125 A Amps, 42kA 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
HED43B125
Series
HED4
Type
42kA at 480V AC, Fixed, Load Side Lug, ABC, HED4
Max. AIR Rating
42kA at 480V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
Load Side Lug
View Full Spec Sheet

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

Product Description

The Siemens ED-Frame Molded Case Circuit Breaker (SKU 6GNC6) is a 125 A rated device from the HED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 42kA at 480V AC, and ABC phase connection with load-side lug terminals.

Frequently Asked Questions

What is the Siemens HED43B125 molded case circuit breaker used for?

The Siemens HED43B125 is a 125 A molded case circuit breaker used for overcurrent protection in industrial and commercial electrical distribution systems. It is designed for fixed installations with ABC phase connection and load-side lug terminals, suitable for branch circuits and feeder protection in panelboards and switchboards.

What are the specifications of the Siemens HED4 series circuit breaker?

The Siemens HED4 series circuit breaker (MPN HED43B125) is rated 125 A with a maximum AIR rating of 42kA at 480V AC. It features a fixed instantaneous trip, ABC phase connection, and load-side lug terminals. This ED-frame device is part of the HED4 series and is designed for reliable overcurrent protection.

Where to buy Siemens HED43B125 circuit breakers worldwide?

You can source the Siemens HED43B125 circuit breaker from 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 supply genuine Siemens molded case circuit breakers for industrial applications.

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

To select the correct Siemens molded case circuit breaker, verify the continuous current rating (125 A for the HED43B125), the maximum AIR rating (42kA at 480V AC), phase connection (ABC), and terminal type (load-side lug). Ensure the frame size (ED-frame) matches your panelboard or switchboard requirements. Consult a licensed electrician for proper coordination.

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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