ZIV 7IRD-A - Power Supply Voltage; Protection Subsystem; Power Supply Burden; Current Analog Inputs

Chapter 2. Technical Data
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
2-2
2.1 Power Supply Voltage
Value selectable according to model
24-48 Vdc (±20%)
110-125 Vdc (±20%)
220-250 Vdc (±20%)
90-250 Vdc/ac (±20%)
Note: in case of an auxiliary power supply voltage failure, terminal units can tolerate a maximum interruption
of 100ms at 110Vdc.
2.2 Protection Subsystem
2.2.1 Power Supply Burden
Quiescent 7 W
Maximum 20 W
2.2.2 Current Analog Inputs
Nominal Value In = 5A or 1A
(depending on the model)
Thermal Withstand Capability 4 In (continuously)
50 In (for 3 s)
100 In (for 3 s)
Dynamic Limit 240 In
Current Circuit Burden In = 5A <0.2VA
In = 1A <0.05VA
2.2.3 Measurement Accuracy
Current < 5 % or 20 mA (the greater)
for In = 1A or 5A
2.2.4 Accuracy of Time Measurement
Definite Time and Inverse Time E = 5 % or 25 ms (the greater)
(UNE 21-136 and IEC 255)