SQUARE D Miniature Circuit Breaker: 40 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
The SQUARE D QOU140 is a 40 A, single-phase, unit-mount miniature circuit breaker from the QOU Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with air conditioning…
SKU 3G-OTH-23182
Also listed as: QOU 140 · QOU-140
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
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Product Description
The SQUARE D QOU140 is a 40 A, single-phase, unit-mount miniature circuit breaker from the QOU Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with air conditioning and refrigeration equipment, this 1-pole breaker provides overcurrent protection in a compact unit-mount form factor.
Frequently Asked Questions
What is the SQUARE D QOU140 miniature circuit breaker used for?
The SQUARE D QOU140 is a 40 A, single-phase miniature circuit breaker designed for overcurrent protection in air conditioning and refrigeration equipment. It is part of the QOU Series and rated for 120/240V AC with a 10kA interrupting capacity.
What are the specifications of the SQUARE D QOU140?
The SQUARE D QOU140 is a 1-pole, 40 A miniature circuit breaker rated for 120/240V AC, single-phase, with a maximum AIR rating of 10kA at 120/240V AC. It is designed for use with air conditioning and refrigeration equipment and has the MPN QOU140.
Where to buy the SQUARE D QOU140 worldwide?
You can source the SQUARE D QOU140 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.
How to select the SQUARE D QOU140 for an HVAC application?
To select the SQUARE D QOU140, verify your system voltage is 120/240V AC single-phase and the load current does not exceed 40 A. Ensure the interrupting capacity of 10kA meets your fault current requirements. This breaker is specifically designed for air conditioning and refrigeration equipment.
Used in
Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D qou series, unit-mount square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
