Need More Details?
If you’d like to check stock availability, request the latest price, or view more product images, simply click the "Request for Price" button and our team will assist you promptly.

Ensure reliable electrical protection with the SIEMENS Q340M 3-POLE 40A CIRCUIT BREAKER. This essential component is designed for robust industrial automation applications, providing superior safeguarding against overcurrents and short circuits. Its three-pole configuration makes it ideal for three-phase systems, offering comprehensive safety for machinery and equipment. Designed for demanding environments, the SIEMENS Q340M delivers peace of mind through its dependable performance.
Engineered for consistent operation within complex control systems, the SIEMENS Q340M circuit breaker features a 40A current rating suitable for a wide range of industrial power distribution needs. Its advanced tripping mechanism ensures rapid response to fault conditions, minimizing downtime and preventing damage to sensitive electrical apparatus. This breaker integrates seamlessly into existing SIEMENS automation infrastructure, guaranteeing compatibility and ease of installation for facility managers and electrical engineers seeking efficient power management solutions.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.