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°. |