The Sepam serie 20 includes 5 types of Sepam. One type of Sepam is dedicated to one application.
Characteristics:
-3 type of UMI
-4 current inputs OR 4 voltage inputs.
-10 logic inputs
-8 relay outputs
1 Modbus communication port
-8 temperature sensor inputs.

3 current applications:
S20: substation incomers and feeders protection
T20: transformer protection
M20: motor protection 2 voltage :
1. B21: busbar protection
2. B22: loss of mains protection