Will this work on square d hom panels ?

We do not test our breakers in our competitors panels that's not to say it won't work but it will not be UL listed ~ you can confirm with SQD.

Will this work on a 3 phase wind turbine. 400 watt, 12 volt. Wiring between turbine and controller. 3 wires from turbine to controller.

Unfortunately no. It won’t work. You’ll need a low voltage breaker for that application. Twelve volts isn’t in the parameters of this breaker.

Siemens Q340 40 Amp Three Pole Type Qp Circuit Breaker

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

⚡ Power up your space with Siemens’ triple-threat circuit breaker!

TRIPLE POLE STABILITY - Ensures balanced, reliable power distribution across three circuits—perfect for complex setups.
POWER PACKED 40 AMP CAPACITY - Handles heavy-duty electrical loads with ease for your modern workspace or home.
10 000 AIC INTERRUPTING RATING - Top-tier surge protection that safeguards your system from dangerous electrical faults.
PLUG AND PLAY INSTA WIRE DESIGN - Streamlines installation with Siemens’ exclusive plug-in and Insta-Wire features—save time, avoid hassle.
WARRANTY BACKED SIEMENS QUALITY - Use only genuine Siemens breakers to keep your panel warranty intact and your system future-proof.

The Siemens Q340 is a 40 Amp, three-pole Type QP circuit breaker designed for 240V systems, offering robust overload and short-circuit protection with a 10,000 AIC interrupting rating. Its plug-in Insta-Wire compatibility with Siemens PL and ES load centers ensures quick, reliable installation while maintaining warranty compliance. Ideal for professionals and homeowners seeking dependable, high-capacity electrical safety.

Specifications

ASIN	B0052MCSKG
Best Sellers Rank	#156,652 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #83 in Thermal-Magnetic Circuit Breakers
Brand	SIEMENS
Brand Name	SIEMENS
Circuit Breaker Type	Standard
Current Rating	40 A
Customer Reviews	4.6 out of 5 stars 144 Reviews
Global Trade Identification Number	00783643148420
Included Components	Q340
Item Dimensions D x W x H	30"D x 8"W x 6"H
Item Type Name	Q340 40-Amp Three Pole Type QP Circuit Breaker
Item Weight	14.4 ounces
Manufacturer	Siemens -HI
Model	Q340
Mounting Type	Plug
Number Of Poles	3
Number of Items	1
Number of Poles	3
Part Number	Q340
Product Dimensions	30"D x 8"W x 6"H
UPC	783643148420
Unit Count	1 Count
Voltage	240 volts

Reviews

B**.

Great product

Item exactly as described

21.08.2023

D**A

Breaker

It looks even better than in the photos—I’m very pleased. What delighted me most was that it was delivered two days early. I highly recommend this store, and thanks to the delivery service.

9.07.2026

J**F

good

21.07.2024

M**N

Good product

1.01.2020

J**.

Excelente

17.01.2024

P**E

Four Stars

great

25.05.2018

T**P

Five Stars

Good.

25.04.2018

H**.

Five Stars

Good price and extant breaker

30.07.2016

A**R

Excellent !

Perfect! Fast delivery and great price !

15.03.2019

D**U

works ok as it should be

5.03.2026

P**L

Good Product

New and good condition.

12.09.2019

T**R

Price was decent but...

Everything is fine but delivery or shipping people are dropping these breakers in the bubble envelope and they are chipped or cracked when arriving.

25.10.2021

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

€ 139.46

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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Siemens Q340 40-Amp Three Pole Type QP Circuit Breaker

Details

Details

Description

Specifications

Reviews

Common Questions