SQUARE D Miniature Circuit Breaker: 80 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QO Series Miniature Circuit Breaker (MPN QO3801021) is a three-phase, 80 A, plug-in unit rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and…
SKU 3G-OTH-22361
Also listed as: QO 3801021 · QO-3801021
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The SQUARE D QO Series Miniature Circuit Breaker (MPN QO3801021) is a three-phase, 80 A, plug-in unit rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ Panelboards, this 3-pole breaker provides overcurrent protection in commercial and industrial electrical distribution systems.
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 SQUARE D QO3801021 miniature circuit breaker used for?
The SQUARE D QO3801021 is a three-phase, 80 A miniature circuit breaker used for overcurrent protection in commercial and industrial electrical distribution systems. It is designed to plug into QO Load Centers and NQ Panelboards, safeguarding branch circuits against overloads and short circuits at 120/240V AC.
What are the specifications of the SQUARE D QO3801021?
The SQUARE D QO3801021 is a 3-pole, 80 A miniature circuit breaker rated for 120/240V AC, three-phase, with a maximum AIR rating of 10kA at 120/240V AC. It is a plug-in QO Series unit for use with QO Load Centers and NQ Panelboards, providing reliable overcurrent protection.
Where to buy the SQUARE D QO3801021 worldwide?
3G Electric supplies the SQUARE D QO3801021 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 three-phase, 80 A breaker for QO Load Centers.
How to install the SQUARE D QO3801021 circuit breaker?
To install the SQUARE D QO3801021, ensure the panel is de-energized, then align the breaker's plug-in base with the bus bar in a QO Load Center or NQ Panelboard. Press firmly until it snaps into place. Verify torque on the terminal screws per manufacturer guidelines. Always follow local electrical codes and use qualified personnel.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D qo series, plug-in square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
