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Closed loop (compensated)
| Primary Current, Measuring Range | −400 ... 400 A |
| Supply Voltage | ±15 V |
| Operating Temperature Range | 10 ... 50 °C |
| Primary Nominal RMS Current (IPN) | −400 ... 400 A |
| Current Consumption (IC) | 80 mA |
| Response Time to 90 % of IPN Step | 1 µs |
Feed back element in high performance gradient amplifiers for MRI, Feedback element in high-precision, high-stability power supplies, Calibration unit, Energy measurement, Medical equipment.
The IT 400-S is a closed loop (compensated) current transducer from LEM.
It offers wide frequency bandwidth. Typical applications include Feed back element in high performance gradient amplifiers for MRI, Feedback element in high-precision, high-stability power supplies, Calibration unit and Energy measurement.
Key characteristics from the official datasheet: frequency bandwidth 0 ... 150 kHz; operating temperature 10 ... 50 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | IT |
| Product Reference | IT 400-S |
| Primary Nominal Current | −400 ... 400 A |
| Supply Voltage | ±15 V |
| Measurement | — |
| Mounting | Busbar Mount |
| Application Domain | Industrial, Laboratory, Medical |
| Electrical Data — IT 400-S | |
|---|---|
| Primary Nominal RMS Current (IPN) | −400 ... 400 A |
| Primary Current, Measuring Range (IPM) | −400 ... 400 A |
| Supply Voltage (UC) | ±15 V |
| Current Consumption (IC) | 80 mA |
| Accuracy & Dynamic Performance | |
|---|---|
| Response Time to 90 % of IPN Step | 1 µs |
| Frequency Bandwidth | 0 ... 150 kHz |
| Insulation Coordination | |
|---|---|
| Impulse Withstand Voltage (1.2/50 µs) UNi | 9.9 kV |
| Creepage Distance (dCp) | 11 mm |
| Clearance (dCI) | 11 mm |
| Comparative Tracking Index (CTI) | 600 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | 10 ... 50 °C |
| Ambient Storage Temperature (TA st) | −20 ... 85 °C |
| Mass (m) | 300 g |
| Standards & Certifications | |
|---|---|
| EN 61000-6-2 | 2005 / AC: |
| EN 61000-6-3 | 2007 / A1: 2011 / AC: |
| EN 61010-1 | 2010 / A1:2019 / AC: 2019-04 |
| EN IEC 61010-2-030: 2021 / A11: 2021. | |
Note: Specifications are taken from the official IT 400-S datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the IT 400-S.
Outline dimensions, pin layout and connection diagrams of the IT 400-S are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 300 g |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the IT 400-S.
The characteristic curves of the IT 400-S from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Response Time to 90 % of IPN Step | 1 µs |
| Frequency Bandwidth | 0 ... 150 kHz |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the IT Series share the same measurement principle, mounting concept and output interface family.
