Return Merchandise Authorization

We always strive for delivering the highest possible quality in our products and our service.
However, sometimes things go wrong, and we need to assess it in order to be able to assist you and to prevent it from happening again in the future.

Please fill out the form below to the best of your ability if you have an RMA request.

Products damaged during transport should be reported to SMS within three working days of the delivery. For more information regarding this procedure, contact us.


Electrical products
We offer a 2-year warranty for manufacturing- and/or material errors on all our electrical products unless otherwise stated.

Non-electrical products
We offer a 5-year warranty for manufacturing- and/or material errors for all our non-electrical products.

We take full responsibility for the transportation of our products sent with freight terms DAP.
All other modes of transportation are not SMS responsibility.

SMS warranty does not cover damage caused by: 

  • Failure to utilize proper packaging or SMS original packaging when returning the product. 
  • Incorrect installation or the failure to follow SMS instructions or warnings when installing, using or storing the product. 
  • Misuse or accident, in transit or otherwise, including cases of third-party actions and in the case of a force majeure.  
  • SMS warranty does not cover corrosion or rust resulting from damaged, scratched or chipped paint or other surfaces.

  • Please enter the following Information if you wish to proceed with your RMA claim
  • Contact information

  • Product details

  • RMA description

  • Photo documentation

    We require photo documentation of possible product damages, the packaging and the packaging label to be able to process your RMA. We suggest using a reference object such as a ruler or a pencil when documenting so we can assess the damage.  Photos of pallets, boxes and damaged products are mandatory for a valid RMA Request. 
  • Please attach the following images:
  • Drop files here or
    Max. file size: 10 MB, Max. files: 10.
    • Drop files here or
      Max. file size: 10 MB, Max. files: 10.
      • Drop files here or
        Max. file size: 10 MB, Max. files: 10.