SQUARE D Miniature Circuit Breaker: 40 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
The SQUARE D QOU240 is a 40 A, single-phase, 2-pole 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 heating applications…
SKU 3G-OTH-23191
Also listed as: QOU 240 · QOU-240
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SQUARE D QOU240 is a 40 A, single-phase, 2-pole 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 heating applications, this unit-mount breaker is manufactured by SQUARE D under part number QOU240.
Frequently Asked Questions
What is the SQUARE D QOU240 miniature circuit breaker used for?
The SQUARE D QOU240 is a 40 A, 2-pole miniature circuit breaker designed for heating applications in single-phase systems. It provides overcurrent protection at 120/240V AC with a 10kA interrupting rating. This unit-mount breaker is part of the QOU Series and is suitable for residential or light commercial heating circuits.
What are the specifications of the SQUARE D QOU240?
The SQUARE D QOU240 is a 40 A, single-phase, 2-pole miniature circuit breaker rated for 120/240V AC. It has a maximum AIR rating of 10kA at 120/240V AC and is designed for use with heating equipment. The manufacturer part number is QOU240, and it belongs to the QOU Series unit-mount breakers.
Where to buy the SQUARE D QOU240 worldwide?
3G Electric supplies the SQUARE D QOU240 miniature circuit breaker worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this QOU Series breaker for your heating application needs.
How to select the SQUARE D QOU240 for a heating circuit?
To select the SQUARE D QOU240, verify your circuit voltage is 120/240V AC single-phase and the load current does not exceed 40 A. Ensure the available fault current is below 10kA at 120/240V AC. This unit-mount breaker from the QOU Series is designed specifically for heating applications. Consult a licensed electrician for proper sizing.
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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.
