SQUARE D Miniature Circuit Breaker: 90 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QOB390 is a 90 A, three-phase miniature circuit breaker from the QOB Series, designed for bolt-on installation. It has an AC voltage rating of 120/240V AC and a maximum AIR rating of 10kA at 120/240V AC…
SKU 3G-OTH-23418
Also listed as: QOB 390 · QOB-390
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 QOB390 is a 90 A, three-phase miniature circuit breaker from the QOB Series, designed for bolt-on installation. It has an AC voltage rating of 120/240V AC and a maximum AIR rating of 10kA at 120/240V AC. This 3-pole breaker is intended for use with Square D NQOD panelboards.
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 QOB390 miniature circuit breaker used for?
The SQUARE D QOB390 is a 90 A, three-phase miniature circuit breaker designed for bolt-on installation in Square D NQOD panelboards. It protects electrical circuits from overloads and short circuits in commercial and industrial applications, providing reliable overcurrent protection at 120/240V AC.
What are the specifications of the SQUARE D QOB390 circuit breaker?
The SQUARE D QOB390 is a 3-pole, 90 A miniature circuit breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is a three-phase, bolt-on type from the QOB Series, designed for use with Square D NQOD panelboards.
Where to buy the SQUARE D QOB390 circuit breaker worldwide?
3G Electric supplies the SQUARE D QOB390 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this genuine Square D QOB Series breaker for your NQOD panelboard needs.
How to install the SQUARE D QOB390 circuit breaker?
The SQUARE D QOB390 is a bolt-on circuit breaker for Square D NQOD panelboards. Ensure the panel is de-energized before installation. Align the breaker with the bus bar, tighten the bolt securely, and verify torque 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 qob 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.
