Manufacturer: Siemens
Family: SIMATIC S7-200
Type: Digital Input Module
Model: EM 221
MRN: 6ES7221-1BF00-0XA0
Uses: for S7-21X CPUs only
No. of digital inputs: 8
Input voltage: 24 V DC
Response time: 3.5 ms, max. 4.5 ms
Isolation: 500 V AC
Power dissipation: 2 W
Dimensions(LxWxD): 90 x 80 x 62 mm
Weight: approx. 0.20 kg