![](https://pimcore-acc.eleq.com/Products/GSA/GSA_GSL.jpg)
GSA 135
![](https://pimcore-acc.eleq.com/_default_upload_bucket/Aafje%20Heinhuis_1.jpg)
For the customized design of your ELEQ GSA transformer the following information is required:
Mandatory
• Rated primary current
• Rated secondary current
• Rated output
• Accuracy class
• Frequency
Optional
• Multi-core transformers
• Terminal box sealable
• Other relevant requirements