---
title: Choosing SSR or EMR
description: OptoBlog post helps you choose between solid state relays and electromechanical relays for automation applications.
---

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## Selecting Solid-State or Electromechanical Relays

### Which should you use for your application?

![Opto 22 Solid State Relay](https://info.opto22.com/hs-fs/hubfs/SSR_in_hand.jpg?width=280&name=SSR_in_hand.jpg "Opto 22 Solid State Relay")SSRs replaced EMRs decades ago, but EMRs still have a place in automation. 

Read our new blog post and compare the two. Learn: 

- Causes and effects of leakage current on loads
- Ways to mitigate higher operational temperatures
- How to decrease electrical noise in the system 
- And much more

You'll also gain access to several online resources for more detailed information.

 

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