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SQUARE D Miniature Circuit Breaker: 90 A, 277/480V AC, Three Phase, 18kA at 277/480V AC - EDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers
SQUARE DEDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers

SQUARE D Miniature Circuit Breaker: 90 A, 277/480V AC, Three Phase, 18kA at 277/480V AC

The SQUARE D EDB34090 is a 90 A, three-phase miniature circuit breaker from the EDB & EGB Series, designed for bolt-on installation. It has an AC voltage rating of 277/480V AC and a maximum AIR rating of 18kA at…

SKU 3G-OTH-22428

Also listed as: EDB 34090 · EDB-34090

Brand
SQUARE D
Item
Miniature Circuit Breaker: 90 A, 277/480V AC, Three Phase, 18kA at 277/480V AC
Category
EDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE D
Manufacturer Part Number
EDB34090
Type
Three Phase, 18kA at 277/480V AC
AC
277/480V
Amps
90 A
Phase
Three
Poles
3
For Use With
Square D NF Panelboards
Max. AIR Rating
18kA at 277/480V AC
AC Voltage Rating
277/480V AC

Technical Documents

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

Product Description

The SQUARE D EDB34090 is a 90 A, three-phase miniature circuit breaker from the EDB & EGB Series, designed for bolt-on installation. It has an AC voltage rating of 277/480V AC and a maximum AIR rating of 18kA at 277/480V AC. This 3-pole breaker is intended for use with Square D NF Panelboards.

Frequently Asked Questions

What is the SQUARE D EDB34090 miniature circuit breaker used for?

The SQUARE D EDB34090 is a 90 A, three-phase miniature circuit breaker used for overcurrent protection in commercial and industrial electrical distribution systems. It is designed for bolt-on installation in Square D NF Panelboards, protecting circuits rated up to 277/480V AC.

What are the specifications of the SQUARE D EDB34090?

The SQUARE D EDB34090 is a 3-pole, three-phase miniature circuit breaker rated 90 A at 277/480V AC. It has a maximum AIR rating of 18kA at 277/480V AC. This EDB & EGB Series breaker is for use with Square D NF Panelboards and features a bolt-on mounting style.

Where to buy the SQUARE D EDB34090 worldwide?

3G Electric supplies the SQUARE D EDB34090 miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Square D breaker.

How to install the SQUARE D EDB34090 miniature circuit breaker?

Install the SQUARE D EDB34090 by mounting it onto a Square D NF Panelboard using the bolt-on mechanism. Ensure the panel is de-energized, torque connections to manufacturer specifications, and verify the breaker's 90 A rating matches the circuit load. Always follow local electrical codes.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D edb & egb series, bolt-on square d miniature 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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SQUARE D Miniature Circuit Breaker: 40 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34040)
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SQUARE D Miniature Circuit Breaker: 50 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34050)
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SQUARE D Miniature Circuit Breaker: 50 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34050)
SQUARE D Miniature Circuit Breaker: 80 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34080)
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SQUARE D Miniature Circuit Breaker: 80 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34080)
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SQUARE D Miniature Circuit Breaker: 45 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34045)
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SQUARE D Miniature Circuit Breaker: 45 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34045)
SQUARE D Miniature Circuit Breaker: 60 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34060)
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SQUARE D Miniature Circuit Breaker: 60 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34060)

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