The HS Grup ST20C is a compact current transformer for measuring primary currents from 40 to 300 A. Its Ø20 mm aperture suits cable installations where space is limited. Available secondary outputs include 5 A, 1 A, 333 mV, and 100/150 mV, with accuracy class and burden selected to match the application.
| Technical detail | Listed options |
|---|---|
| Primary current | 40–300 A |
| Secondary output | 5 A; 1 A; 333 mV; 100 mV; 150 mV |
| Accuracy class | 0.5; 1; 3 |
| Burden for current-output versions | 1–5 VA; 2.5–10 VA; 5–15 VA |
| Cable aperture | Ø20 mm |
| Maximum system voltage shown | 0.72 / 3 kV |
