Our close collaboration with Siemens

Siemens as the world leader in the automation technology is forced to their products up-to-date. This is the reason why the renovation of existing products gets quicker and quicker. The manufacturer needs to sell and establish new products in the market to replace the obsolete products. Very often that is not possible because of prices or to technical reasons. SINTRONICS is your partner who either repairs your used components or who replaces the obsolete products from their own stock.

Due to this long-lasting cooperation SINTRONICS was officially allowed to use the SIEMENS-logo on their website.

Parts Catalogue SIEMENS


ASIsafe extended Safety monitor 2 F-RO 2 enabling circuits IP2, with screw terminal removable terminals Safe output relay Response time maximum 4 ms Monitor type 4, Version 3 Can be used up to Category 4 (EN954-1) up to PL E (EN ISO 13849-1) up to SIL 3 (IEC 6158)
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Choose the condition of the spare part or desired service

Price (EUR):

Weight: 691 kg

Goods Number: 85389099

24 month warranty for the whole module.

Secure transaction

All items are completely overhauled and fully tested

The part with the number 8UD1851-3AD05 from the product group SIEMENS is a proven component in industry processes. You can count on the performance and quality of your spare or new part: SINTRONICS does not only deliver, but as well offers the full service.

Multiple Checks

We check for your component's functionality and condition at several points during our internal service chain.

Safe Storage

SINTRONICS takes thorough care of every single component. Our products are stored in warehouses with a special air and climatic conditioning in order to keep high temperatures or inappropriate humidity from reducing your component's lifetime or quality.


Entrust your industry component 8UD1851-3AD05 from SIEMENS to us for any repair. We will try everything possible to make it work again before thinking of selling you something new.

You can also send the defective part to us for repair.