The difference between SPH 3-6K AND SPH 3-6K TL BL UP
- EPS and UPS function
UPS has shorter switch time : < 10ms
EPS has longer switchover time: <0.5s
- ATS function
UP model has added ATS function, you don’t need to install extra ATS device.
- Control board can be used on both SPH 3-6K and SPH 3-6K TL BL UP models
![](https://www.amosplanet.org/wp-content/uploads/2022/05/16528621741-1-768x1024.png)
![](https://www.amosplanet.org/wp-content/uploads/2022/05/16530502151-1-768x1024.png)
- Mainboard and IO board can’t be used on both SPH 3-6K and SPH 3-6K TL BL UP models
![](https://www.amosplanet.org/wp-content/uploads/2022/05/1653471378-1024x767.png)
![](https://www.amosplanet.org/wp-content/uploads/2022/05/16534714961-1024x767.png)