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Siemens Molded Case Circuit Breaker: 90 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: 90 A Amps, 18kA at 480V AC, Fixed, Load Side Lug

The SIEMENS Molded Case Circuit Breaker is an ED-Frame, ED4-series device rated for 90 A with a maximum AIR rating of 18kA at 480V AC. It features a fixed instantaneous trip and accepts any phase connection, with…

SKU 3G-OTH-22027

Brand
Siemens
Item
Molded Case Circuit Breaker: 90 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
ED42B090
Series
ED4
Type
18kA at 480V AC, Fixed, Load Side Lug, Any, ED4
Max. AIR Rating
18kA at 480V AC
Phase Connection
Any
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, ED4-series device rated for 90 A with a maximum AIR rating of 18kA at 480V AC. It features a fixed instantaneous trip and accepts any phase connection, with load-side lug terminals for wiring. This product is identified by manufacturer part number ED42B090.

Frequently Asked Questions

What is the SIEMENS ED42B090 molded case circuit breaker used for?

The SIEMENS ED42B090 is an ED4-series molded case circuit breaker rated for 90 A with an 18kA interrupting rating at 480V AC. It is used for overcurrent protection in industrial power distribution panels, motor control centers, and branch circuits where fixed instantaneous trip and load-side lug wiring are required.

What are the specifications of the SIEMENS ED42B090 circuit breaker?

The SIEMENS ED42B090 is an ED-Frame, ED4-series molded case circuit breaker rated for 90 A with a maximum AIR rating of 18kA at 480V AC. It features a fixed instantaneous trip, accepts any phase connection, and uses load-side lug terminals. The manufacturer part number is ED42B090.

Where to buy the SIEMENS ED42B090 circuit breaker worldwide?

3G Electric supplies the SIEMENS ED42B090 molded case circuit breaker worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this ED4-series 90 A breaker.

How to select the correct SIEMENS ED4 circuit breaker for my application?

To select the correct SIEMENS ED4 circuit breaker, verify your system voltage (480V AC max), required interrupting rating (18kA for this model), and continuous current (90 A). Ensure the fixed instantaneous trip matches your load characteristics and that load-side lug terminals suit your wiring method. Consult a licensed electrician for code compliance.

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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