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 system protection with the Siemens Automatic Fuse 45A 3P, part number A9B00017979. This essential component is engineered for robust performance in demanding industrial automation environments, offering superior overcurrent protection for critical machinery and control systems. Its design prioritizes safety and operational continuity.
The Siemens A9B00017979 fuse is specifically built for applications requiring precise electrical management. It integrates seamlessly into Siemens control systems and wind turbine setups, providing steadfast defense against electrical faults. This device is ideal for maintaining the integrity of complex industrial power distribution networks.
Key Features:
Technical Specifications:
Trust in the advanced engineering of Siemens for your industrial automation needs. The Siemens Automatic Fuse 45A 3P A9B00017979 offers unparalleled reliability and performance. Explore our range of industrial protection solutions today.
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.