EM121 8DI 24VDC
8 digital input,24V DC
Opto-couplers isolation,
Strong anti-interference performance, stable
From bus current consumption |
40mA |
Power loss |
2W |
Number of digital inputs |
8 |
Signal input type· |
PNP/NPN |
Input voltage range |
24VDC,4mA |
Maximum input voltage |
30V DC |
Surge voltage |
35V DC,0.5s |
Logic 0 signal |
0~5V DC |
Logic 1 signal |
15~30V DC |
Input delay(max) |
4.5ms |
Optical isolation(Galvanic) (Field Side to Logic) |
500 V AC for 1 minute |
Premissible leakage current(Bero) |
1mA |
Cable Length |
500m(Shielded ) 300m(Unshielded) |
Dimensions(W x H x D)(mm) |
46×80×62 |
20 years experience
3-year warranty
Support free sample test

- Shenzhen Unimat Automation Technology Co., Ltd., established in 2005, is a National High-Tech Enterprise, a Specialized and Innovative Enterprise, and a participant in the development of the national standard for Programmable Controllers, specializing in industrial automation control.
- The company's products include PLCs, HMIs, VFDs, and Industrial Internet of Things systems, all of which have complete independent intellectual property rights.
As of December 2023, UniMAT PLC sales have exceeded 2,000,000 units.