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.

Enhance your industrial control systems with the Siemens 3TH2040-0BB4 a reliable contactor relay designed for efficient DC operation. This component is crucial for applications requiring precise switching and dependable performance in demanding environments. It offers a robust solution for automating processes and ensuring operational continuity.
Engineered for 24 VDC power systems the Siemens 3TH2040-0BB4 provides essential control functionality. Its screw terminal connections ensure secure and straightforward integration into existing automation setups and control panels. This relay is built to withstand continuous operation making it ideal for critical industrial automation tasks.
What sets this Siemens contactor relay apart is its straightforward integration and robust build quality. It is perfect for automation engineers and maintenance professionals who need dependable components for their control circuits. Reliable switching ensures your automated processes run smoothly.
Trust in Siemens for your automation needs. The Siemens 3TH2040-0BB4 contactor relay offers the performance and dependability you expect for your industrial automation systems. Secure yours today to ensure operational excellence.
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.