Through-hole current sensors
ITT-500 and ITT-500R through-hole current sensors are designed for measuring direct, alternating, pulse currents or their combinations and provide galvanic isolation between primary and secondary circuits.
The ITT-500 sensor is built according to a compensation circuit using a Hall sensor.
The ITT-500R sensor is based on Flux Gate technology.
The output signal (secondary current) is proportional to the input signal (primary current).
Sensor features:
- provide the ability to measure both direct and alternating current;
- wide frequency range;
- high accuracy and linearity;
- high galvanic isolation;
- no core saturation effect;
- low phase shift;
- resistance to current asymmetry (ability to measure complex waveform currents — non-sinusoidal, pulsed, with DC component);
- high response speed, allowing detection of rapid current changes, inrush currents, short circuits, and transient processes;
Additional features for ITT-500R:
- low noise level;
- sensitivity to low currents;
- suppression of external magnetic fields.
MAIN SPECIFICATIONS
| Characteristic | ITT-500 | ITT-500R |
|---|---|---|
| Rated primary current Inom, A | 500 | 500 |
| Maximum continuous primary current Imax, A | 1000 | 600 |
| Maximum peak primary current Ipeak, A | 1200 | — |
| Transformation ratio | 1:5000 | 1:2000 |
| Rated secondary current, mA | 100 | 250 |
| Permissible reduced error limit, % | 0.3 or 0.5 (when ordering) | 0.05 |
| Initial output current, max, mA | 0.2 | 0.02 |
| Bandwidth, kHz | 0..100 | 0…100 |
| Load resistance, Ohm (min/max) |
0/60 (500A) 0/10 (1000A) 0/5 (1200A) |
0/5 |
| Supply voltage, V | ±15…18 (±5%) | |
| Current consumption, mA | 20 + output current | |
| Galvanic isolation, kV (50Hz, 1 min) | 6 | |
| Overall dimensions, mm | 90×84.5×28 | |
| Operating temperature, °C | -40…+85 | |
| Storage temperature, °C | -40…+85 | |
| Weight, kg, max | 0.3 | |