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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 HED42B125 is a 125 A ED-Frame molded case circuit breaker 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…

SKU 3G-OTH-22354

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
HED42B125
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 HED42B125 is a 125 A ED-Frame molded case circuit breaker 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 HED42B125 molded case circuit breaker used for?

The SIEMENS HED42B125 is an ED-Frame molded case circuit breaker used for overcurrent protection in industrial power distribution panels, motor control centers, and switchboards. It handles up to 125 A and provides a 42kA interrupting rating at 480V AC, making it suitable for commercial and light industrial applications.

What are the specifications of the SIEMENS HED42B125?

The SIEMENS HED42B125 is a 125 A ED-Frame molded case circuit breaker from the HED4 series. It has a fixed instantaneous trip, a maximum AIR rating of 42kA at 480V AC, ABC phase connection, and load side lug terminals. The manufacturer part number is HED42B125.

Where to buy the SIEMENS HED42B125 worldwide?

3G Electric supplies the SIEMENS HED42B125 molded case circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this HED4 series breaker.

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 HED42B125), the maximum interrupting rating (42kA at 480V AC), phase connection (ABC), and terminal type (load side lug). Ensure the frame size (ED-Frame) matches your panelboard or switchgear requirements.

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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