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Siemens Molded Case Circuit Breaker: 90 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: 90 A Amps, 42kA at 480V AC, Fixed, Load Side Lug

The SIEMENS Molded Case Circuit Breaker is an ED-Frame device rated for 90 A Amps, part of 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-22031

Brand
Siemens
Item
Molded Case Circuit Breaker: 90 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
HED43B090
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 an ED-Frame device rated for 90 A Amps, part of the HED4 series. It features a fixed instantaneous trip, a maximum AIR rating of 42kA at 480V AC, and ABC phase connection. The breaker includes load-side lug terminal connections and is identified by manufacturer part number HED43B090.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS HED43B090 molded case circuit breaker used for?

The SIEMENS HED43B090 is an ED-frame molded case circuit breaker rated for 90 A amps with a 42kA interrupting rating at 480V AC. It is used for overcurrent protection in industrial power distribution panels, motor control centers, and switchboards requiring ABC phase connection and fixed instantaneous trip settings.

What are the specifications of the SIEMENS HED43B090 circuit breaker?

The SIEMENS HED43B090 is a 90 A amp ED-frame breaker from the HED4 series. It has a maximum AIR rating of 42kA at 480V AC, ABC phase connection, fixed instantaneous trip, and load-side lug terminal connections. The manufacturer part number is HED43B090.

Where to buy the SIEMENS HED43B090 circuit breaker worldwide?

3G Electric supplies the SIEMENS HED43B090 molded case circuit breaker worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this HED4 series breaker.

How to select the correct SIEMENS molded case circuit breaker for an application?

To select the correct SIEMENS ED-frame breaker like the HED43B090, verify the continuous current rating (90 A), maximum interrupting rating (42kA at 480V AC), phase connection (ABC), and terminal type (load-side lug). Ensure the fixed instantaneous trip matches your system coordination requirements. Consult a licensed engineer for proper sizing.

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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SIEMENS Molded Case Circuit Breaker: 70 A Amps, 42kA at 480V AC, Fixed, Load Side Lug, Any, HED4 (MPN HED42B070). Key specifications — Phase Connection: Any; Instantaneous Trip: Fixed; Terminal Connection: Load Side Lug; Series: HED4; Max. AIR Rating: 42kA at 480V AC.
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