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Siemens Molded Case Circuit Breaker: 45 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: 45 A Amps, 42kA at 480V AC, Fixed, Load Side Lug

The SIEMENS Molded Case Circuit Breaker is a 45 A ED-Frame unit from the HED4 series, rated for a maximum AIR of 42kA at 480V AC. It features a fixed instantaneous trip, ABC phase connection, and load-side lug…

SKU 3G-OTH-22707

Brand
Siemens
Item
Molded Case Circuit Breaker: 45 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
HED43B045
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 Molded Case Circuit Breaker is a 45 A ED-Frame unit from the HED4 series, rated for a maximum AIR of 42kA at 480V AC. It features a fixed instantaneous trip, ABC phase connection, and load-side lug terminals (MPN HED43B045).

Frequently Asked Questions

What is the Siemens HED43B045 molded case circuit breaker used for?

The Siemens HED43B045 is a 45 A ED-frame molded case circuit breaker used for overcurrent protection in industrial power distribution systems. It is suitable for applications requiring a 42kA interrupting rating at 480V AC and ABC phase connection, such as motor control centers and panelboards.

What are the specifications of the Siemens HED43B045 circuit breaker?

The Siemens HED43B045 is a 45 A ED-frame MCCB from the HED4 series with a maximum AIR rating of 42kA at 480V AC. It features a fixed instantaneous trip, ABC phase connection, and load-side lug terminals. The manufacturer part number is HED43B045.

Where to buy the Siemens HED43B045 circuit breaker worldwide?

3G Electric supplies the Siemens HED43B045 molded case circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this ED-frame MCCB.

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

To select the correct Siemens MCCB, verify the continuous current rating (45 A for HED43B045), interrupting capacity (42kA at 480V AC), phase connection (ABC), and trip type (fixed instantaneous). 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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