Window-type current transformer with sealable terminal cover,
suitable for primary currents from 40A to 600A AC;
available in 1A or 5A AC secondary current;
and accuracy classes 0.5S, 0.5 , 1.0 or Class 3.0.
Code: TK30405901
TK30 | ||||
CURRENT RATIO | Class 3 | Class 1 | Class 0.5 | Class 0.5S |
40/5 | 1 VA | - | - | - |
50/5 | 1 VA | 1 VA | - | - |
60/5 | 1 VA | 1 VA | - | - |
75/5 | 1 VA | 1 VA | - | - |
80/5 | 1.5 VA | 1 VA | - | - |
100/5 | 1.5 VA | 1 VA | 1 VA | - |
125/5 | 2.5 VA | 1.5 VA | 1 VA | - |
150/5 | - | 2.5 VA | 2.5 VA | 1 VA |
160/5 | - | 2.5 VA | 2.5 VA | 1.5 VA |
200/5 | - | 2.5 VA / 5 VA | 2.5 VA / 5 VA | 1.5 VA |
250/5 | - | 5 VA / 10 VA | 5 VA / 10 VA | 2.5 VA |
300/5 | - | 5 VA / 10 VA | 5 VA / 10 VA | 3.75 VA |
400/5 | - | 5 VA / 10 VA | 5 VA / 10 VA | 5 |
500/5 | - | 5 VA / 10 VA | 5 VA / 10 VA | 5 |
600/5 | - | 10 | 10 | 10 |
Current Transformers Coding Map

Parameter | Value |
Standards | IEC 60044-1, IEC 61869-2, VDE 0414-1, DIN57414, BS3938, BS7626, EN 61869-2 |
CT Ratio | From 40A to 600A |
Rated Power | Up to 12.5VA |
Accuracy class | Class 0.5S, Class 0.5, Class 1.0 or Class 3.0 |
Terminal | Integral terminal cover, high cross section brass terminal for extra safety |
Case | Non-flammable self-extinguishing ABS/PC |
Mounting | Various mounting options |
Ambient temperature (operation) | -25 C ~ +85 C |
Primary conductor | 30 x 10 mm |
Round conductor | Ø 26 mm |
Number of input | 1 |
Thermal rated short-time current | Ith = 60 * In |
Thermal rated continuous current | Id = 1.2 * In |
Rated frequency | 50 Hz … 60 Hz |
Surge current limitation factor | FS 5 |
Test voltage | 3 kV for 1 min |
Max system voltage | 0.72 kV |