SQUARE D Miniature Circuit Breaker: 40 A, 120/208V AC, Three Phase, 10kA at 208/120V AC
The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB340GFI) is a 40 A, three-phase, bolt-on breaker rated for 120/208V AC with a maximum AIR rating of 10kA at 208/120V AC. It is designed for use with QO Load…
SKU 3G-OTH-23073
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
Need installation or engineering help?
Ask a question
Product Description
The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB340GFI) is a 40 A, three-phase, bolt-on breaker rated for 120/208V AC with a maximum AIR rating of 10kA at 208/120V AC. It is designed for use with QO Load Centers and NQ Panelboards.
Frequently Asked Questions
What is the SQUARE D QOB340GFI miniature circuit breaker used for?
The SQUARE D QOB340GFI is a 40 A, three-phase, bolt-on miniature circuit breaker rated for 120/208V AC. It provides overcurrent and ground-fault protection in QO Load Centers and NQ Panelboards, commonly used in commercial and industrial electrical distribution systems.
What are the specifications of the SQUARE D QOB340GFI?
The SQUARE D QOB340GFI is a 40 A, three-phase, bolt-on breaker with an AC voltage rating of 120/208V AC and a maximum AIR rating of 10kA at 208/120V AC. It is designed for use with QO Load Centers and NQ Panelboards. The manufacturer part number is QOB340GFI.
Where to buy the SQUARE D QOB340GFI worldwide?
3G Electric supplies the SQUARE D QOB340GFI 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 QOB340GFI breaker.
How to install the SQUARE D QOB340GFI breaker?
Install the SQUARE D QOB340GFI by bolting it into a compatible QO Load Center or NQ Panelboard. Ensure the panel is de-energized, then torque the bolt-on connections per the manufacturer's specifications. Always follow local electrical codes and use appropriate personal protective equipment.
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.
