Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D Miniature Circuit Breaker: 20 A, 277/480V AC, Single 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: 20 A, 277/480V AC, Single Phase, 18kA at 277/480V AC

The SQUARE D EDB24020SA is a 20 A, single-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-22460

Brand
SQUARE D
Item
Miniature Circuit Breaker: 20 A, 277/480V AC, Single Phase, 18kA at 277/480V AC
Category
EDB & EGB Series, Bolt-On Square D Miniature Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
EDB24020SA
Type
Single Phase, 18kA at 277/480V AC
AC
277/480V
Amps
20 A
Phase
Single
Poles
2
For Use With
Square D NF Panelboards
Max. AIR Rating
18kA at 277/480V AC
AC Voltage Rating
277/480V AC

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SQUARE D EDB24020SA is a 20 A, single-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 2-pole breaker is intended for use with Square D NF Panelboards.

Frequently Asked Questions

What is the SQUARE D EDB24020SA miniature circuit breaker used for?

The SQUARE D EDB24020SA is a 20 A, single-phase miniature circuit breaker used for overcurrent protection in commercial and industrial electrical panels. It is designed for bolt-on installation in Square D NF Panelboards, protecting circuits rated up to 277/480V AC with an 18kA interrupting capacity.

What are the specifications of the SQUARE D EDB24020SA?

The SQUARE D EDB24020SA is a 2-pole miniature circuit breaker rated at 20 A, single-phase, with an AC voltage rating of 277/480V AC. It has a maximum AIR rating of 18kA at 277/480V AC and is part of the EDB & EGB Series. It is designed for use with Square D NF Panelboards.

Where to buy the SQUARE D EDB24020SA worldwide?

You can source the SQUARE D EDB24020SA through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide this Square D miniature circuit breaker to procurement teams globally.

How to install the SQUARE D EDB24020SA miniature circuit breaker?

To install the SQUARE D EDB24020SA, ensure the panel is de-energized. Align the breaker's bolt-on tabs with the bus bar in a Square D NF Panelboard, then tighten the mounting screws to the manufacturer's torque specification. Connect line and load wires to the terminals, verifying polarity and phase. 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
SQUARE D Miniature Circuit Breaker: 20 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles (MPN EDB14020SA)
SQUARE D
SQUARE D Miniature Circuit Breaker: 20 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles (MPN EDB14020SA)
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24070SA)
SQUARE D
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24070SA)
SQUARE D Miniature Circuit Breaker: 40 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24040SA)
SQUARE D
SQUARE D Miniature Circuit Breaker: 40 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24040SA)
SQUARE D Miniature Circuit Breaker: 50 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24050SA)
SQUARE D
SQUARE D Miniature Circuit Breaker: 50 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24050SA)
SQUARE D Miniature Circuit Breaker: 20 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles (MPN EDB14020EPD)
SQUARE D
SQUARE D Miniature Circuit Breaker: 20 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles (MPN EDB14020EPD)
SQUARE D Miniature Circuit Breaker: 35 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24035)
SQUARE D
SQUARE D Miniature Circuit Breaker: 35 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24035)

More from SQUARE D

View all SQUARE D parts
SQUARE D Miniature Circuit Breaker: 80 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24080)
SQUARE D
SQUARE D Miniature Circuit Breaker: 80 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24080)
SQUARE D Miniature Circuit Breaker: 100 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34100)
SQUARE D
SQUARE D Miniature Circuit Breaker: 100 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34100)
SQUARE D Miniature Circuit Breaker: 100 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24100)
SQUARE D
SQUARE D Miniature Circuit Breaker: 100 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24100)
SQUARE D Miniature Circuit Breaker: 40 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles, Std (MPN EDB14040)
SQUARE D
SQUARE D Miniature Circuit Breaker: 40 A, 277V AC, Single Phase, 18kA at 120/240V AC, 1 Poles, Std (MPN EDB14040)
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Three Phase, 35kA at 277/488V AC, 3 Poles (MPN EGB34070)
SQUARE D
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Three Phase, 35kA at 277/488V AC, 3 Poles (MPN EGB34070)
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24070)
SQUARE D
SQUARE D Miniature Circuit Breaker: 70 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24070)
SQUARE D Miniature Circuit Breaker: 35 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34035)
SQUARE D
SQUARE D Miniature Circuit Breaker: 35 A, 277/480V AC, Three Phase, 18kA at 277/480V AC, 3 Poles (MPN EDB34035)
SQUARE D Miniature Circuit Breaker: 90 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24090)
SQUARE D
SQUARE D Miniature Circuit Breaker: 90 A, 277/480V AC, Single Phase, 18kA at 277/480V AC, 2 Poles (MPN EDB24090)