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Square D QO340 - Mini circuit breaker, QO, 40A, 3 pole, 120/240VAC, 10kA, plug in | Schneider Electric

Cat No.	QO340
Category	MCB
Stock	Back Ordered
Condition	Brand New, Sealed Packaging
Product Type	MCB

Please contact us for the exact delivery timeline

Back Ordered

$143.07

Lead Time: 25 Working Days.

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Technical Specification

Schneider QO340 MCB Technical Specification

MCB
Breaking Cap	10kA
Curve	Not Applicable
Model	qo3
No of pole	3P
Range of Product	—
Rating	40A

Product Details

Square D Schneider Electric QO340 - QO and QOB one, two and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. These circuit breakers have an over center, trip free toggle mechanism with quick make, quick break action and positive handle indication. They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. This 3 pole QO circuit breaker is rated at 40A at 120/240VAC. This unit provides 10kA breaking capacity and plug in mounting. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555. We are dedicatedly involved in providing an excellent quality products at Electrihub.

Product Dimensions

Schneider QO340 dimensions and weight

Dimensions (L × W × H)

Length 8.64 cm

Width 8.13 cm

Height 5.84 cm

Weight

Net Weight 0.5 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Product Overview

Frequently Asked Questions for QO340

Schneider MCB QO340 offers high breaking capacity depending on its pole and rating. You can check exact kA rating using ElectriHub MCB filters such as poles, current rating, and curve type.

Yes, Schneider MCB QO340 is designed for home distribution systems and ensures protection against overload and short circuits. Select your pole and ampere rating from the ElectriHub MCB filter.

Schneider MCB QO340 is available in B, C, and D curve options depending on the application. Use the curve filter on ElectriHub to verify available options.

To select the right ampere rating for Schneider MCB QO340, check your load requirement and matching poles. ElectriHub rating filter helps you choose from 1A to 63A.

Yes, Schneider MCB QO340 supports standard DIN rail mounting for easy installation in all household and industrial panels.

Every Schneider QO340 MCB purchased from Electrihub is 100% genuine, brand new, and supplied in original sealed packaging ‚Äî ensuring top performance and reliability. We source all products from trusted Schneider supply channels, so you can buy with complete confidence.
Electrihub offers competitive pricing, fast delivery, and expert support to help you select the right MCB for your application. Whether for industrial automation, electrical panels, or control systems, you can rely on Electrihub for authentic Schneider products that deliver consistent quality and safety.

Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.

Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.

Reviews & Ratings

3.8

5 reviews

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Dmitry Mueller Apr 7, 2026

Excellent quality Schneider MCB. The QO340 works perfectly for my distribution board. Thanks Electrihub for the fast shipping.

Pierre Popov Apr 7, 2026

The QO340 is a solid breaker. Electrihub's price was the most competitive I found. Highly recommend this store.

Andrej Fernandez Apr 7, 2026

Genuine Schneider product. I was looking for the QO340 everywhere and finally found it on Electrihub. Very reliable.

Miguel Al-Farsi Apr 7, 2026

Replaced an old unit with this QO340. Works as expected. The packaging from Electrihub was very professional.

Sanjay Dubois Apr 7, 2026

Top notch performance from this Schneider unit. Easy to install and secure. Electrihub is my go-to for electrical supplies.

Related Categories

Home Distribution Products Distribution Board Loadcentre MCB MCB Accessories Plug & Socket RCBO Breaker RCCB/ELCB Surge Protection Accessories Surge Protection and Power Conditioning Surge Protection Device Switches and Sockets

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Square D QO340 - Mini circuit breaker, QO, 40A, 3 pole, 120/240VAC, 10kA, plug in | Schneider Electric

Technical Documents

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Technical Specification

Product Details

Product Dimensions

Related Products

Frequently Bought Together

Product Line Card

No Data Available

Alternate Products

Product Overview

Frequently Asked Questions for QO340

Reviews & Ratings

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