The multi-function relay is suitable for use in the following SMA inverters:


• SB 3000TL-21, SB 3600TL-21, SB 4000TL-21, SB 5000TL-21

• WB 3000TL-21, WB 3600TL-21, WB 4000TL-21, WB 5000TL-21

• SB 2500TLST-21, SB 3000TLST-21

• STP 8000TL-10, STP 10000TL-10, STP 12000TL-10, STP 15000TL-10, STP 17000TL-10

• STP 15000TLHE-10, STP 20000TLHE-10, STP 15000TLEE-10, STP 20000TLEE-10


Please check out our other listings


International shipping available.


Why buy from us?

- We are a registered company & provide technical assistance by phone or email.

- We provide VAT invoices with all purchases

- Our business is setup to primarily recycle used solar equipment which in turn helps the environment!  

- All items are tested & inspected in our workshop using specialist test equipment 

- All items include a 3 month warranty unless stated otherwise

- You are welcome to call us for help with setting up your unit or to discuss an item you are looking at.


THANK  YOU FOR LOOKING AT OUR STORE!