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SQUARE D Miniature Circuit Breaker: 125 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: 125 A, 277/480V AC, Three Phase, 18kA at 277/480V AC

The SQUARE D Miniature Circuit Breaker, part of the EDB & EGB Series, is a bolt-on three-phase breaker rated for 125 A at 277/480V AC with a maximum AIR rating of 18kA at 277/480V AC. This 3-pole unit (MPN EDB34125)…

SKU 3G-OTH-22064

Also listed as: EDB 34125 · EDB-34125

Brand
SQUARE D
Item
Miniature Circuit Breaker: 125 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
EDB34125
Type
Three Phase, 18kA at 277/480V AC
AC
277/480V
Amps
125 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 Miniature Circuit Breaker, part of the EDB & EGB Series, is a bolt-on three-phase breaker rated for 125 A at 277/480V AC with a maximum AIR rating of 18kA at 277/480V AC. This 3-pole unit (MPN EDB34125) is designed for use with Square D NF Panelboards.

Frequently Asked Questions

What is the SQUARE D EDB34125 miniature circuit breaker used for?

The SQUARE D EDB34125 is a 125 A, three-phase miniature circuit breaker rated for 277/480V AC. It is designed for bolt-on installation in Square D NF panelboards to protect branch circuits from overloads and short circuits in commercial and industrial electrical distribution systems.

What are the specifications of the SQUARE D EDB34125?

The SQUARE D EDB34125 is a 3-pole, 125 A miniature circuit breaker with an AC voltage rating of 277/480V AC and a maximum AIR rating of 18kA at 277/480V AC. It is part of the EDB & EGB Series and is for use with Square D NF panelboards.

Where to buy the SQUARE D EDB34125 worldwide?

3G Electric supplies the SQUARE D EDB34125 miniature circuit breaker to customers 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 Square D breaker.

How to install the SQUARE D EDB34125 circuit breaker?

The SQUARE D EDB34125 is a bolt-on type breaker designed for Square D NF panelboards. Ensure the panel is de-energized, then align the breaker with the bus stabs and torque the bolt to the manufacturer's specification. Always follow local electrical codes and use proper personal protective equipment.

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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