IN Series Current Sensor
The IN Series current sensors are designed for accurate and stable current measurement in advanced power analysis applications. Using a closed-loop, zero-flux measurement principle, they deliver high accuracy across DC and high-frequency AC signals, even in electrically noisy environments. With high peak current capability, wide bandwidth, and excellent EMC immunity, the IN Series is well suited for power electronics testing in EV systems, renewable energy infrastructure, and data center power architectures.
The IN Series are high-precision, closed-loop (zero-flux) current sensors designed for demanding power analysis applications. Their compensated measurement principle delivers excellent linearity, very low electrical offset, and high long-term stability, enabling accurate DC and wide-bandwidth AC current measurements.
A rugged metal housing improves EMC immunity and thermal performance, making the sensors well suited for electrically noisy environments. Large apertures allow direct measurement of cables and busbars without system disruption, while integrated protection, status output, and an LED indicator simplify installation and diagnostics. With bandwidths up to 2.5 MHz (±3 dB) and an operating range from −40 °C to +85 °C, the IN Series supports precise, repeatable measurements across a wide range of power electronics test conditions.
| Parameter | Specification |
|---|---|
| Nominal current (AC) | 1000 A rms (continuous) |
| Nominal current (DC) | ±1000 A (continuous) |
| Measuring range (peak) | ±1500 A |
| Primary / secondary ratio | 1500:1 |
| Bandwidth | 230 kHz (±1 dB), 440 kHz (±3 dB) |
| Total accuracy | ±1 ppm linearity, ±10 ppm offset (25 °C) |
| RMS noise (0–10 Hz) | 0.1 ppm (referred to primary) |
| Offset temperature coefficient | ±0.3 ppm/K |
| Supply voltage | ±15 V DC (±14.25 to ±15.75 V) |
| Output interface | Current output (secondary winding) |
| Manufacturer | LEM |
*These Current Transducers are manufactured by LEM Instruments and sold by Yokogawa Corporation of America. All data is in accordance with manufacturers specifications and is subject to change and correction.mode
| Parameter | Specification |
|---|---|
| Nominal current (AC) | 2000 A rms (continuous) |
| Nominal current (DC) | ±2000 A (continuous) |
| Measuring range (peak) | ±3000 A |
| Primary / secondary ratio | 2000:1 |
| Bandwidth | 130 kHz (±1 dB), 140 kHz (±3 dB) |
| Total accuracy | ±2 ppm linearity, ±10 ppm offset (25 °C) |
| RMS noise (0–10 Hz) | 0.1 ppm (referred to primary) |
| Offset temperature coefficient | ±0.1 ppm/K |
| Supply voltage | ±15 V DC (±14.25 to ±15.75 V) |
| Output interface | Current output (secondary winding) |
| Manufacturer | LEM |
These Current Transducers are manufactured by LEM Instruments and sold by Yokogawa Corporation of America. All data is in accordance with manufacturers specifications and is subject to change and correction.mode