CURRENT TRANSFORMER – xxxA / 5A

BUS BAR CURRENT TRANSFORMERS.

Ready for DIN rail mounting
Primary current  from 50 A to 4000 A
Secondary  5 A (1 A on request)
Class  0.5/1

 

Main features:

ABS CASE  Self-extinguishing
CURRENT TO THE SECONDARY   5 A (1 A on request)
SAMPLING FREQUENCY   40-60 Hz
DYNAMIC NOMINAL CURRENT OF SHORT CIRCUIT (Idin)  2.5 Iter for 1 sec – Max peak value that the CT can bear when the secondary is in short circuit
THERMAL NOMINAL CURRENT OF SHORT CIRCUIT (Iter)  40-80 Ipn for 1 sec – Max effective value with the secondary in short circuit
STANDING OVERCURRENT  1.2 In
VOLTAGE INSULATING REFERENCE  0.72 kV max voltage value
TESTING VOLTAGE  3 kV at 50 Hz for 1 min., max voltage value between primary and secondary
SAFETY FACTOR  N <= 5
Saturation factor (Sf) or ratio between the primary current value, that causes magnetic core saturation, and the nominal current value. The lower the N value, the higher the instrument protection
WORKING TEMPERATURE  -25°…+50°C
STORAGE TEMPERATURE   -40°…80°C
MAXIMUM TEMPERATURE OF CABLE  70°C
RELATIVE HUMIDITY  90% max, not condensing
INSULATION in air  class E
DEGREE OF PROTECTION  IP 30
CONSTRUCTION According to standards CEI 38-1, IEC185, VDE 0414, EN60044-1, EN60044-1°.