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Closed loop (compensated)
| Primary Current, Measuring Range | −600 ... 600 A |
| Supply Voltage | 14.25 ... 15.75 V |
| Operating Temperature Range | −40 ... 85 °C |
| Isolation Test Voltage | 4.95 kV |
| Primary Nominal RMS Current (IPN) | −400 ... 400 A |
| Current Consumption (IC) | 0.387 A |
Feedback element in high performance gradient amplifiers for MRI, Feedback element in high-precision, high-stability power supplies, Calibration unit, Energy measurement, Medical equipment. Standards IEC 61010-1 EMC:, IEC 61000-6-2: 2016, IEC 61000-6-3: 2006 + A1 (2010) Safety:, IEC 61010-2-030: 2017, IEC 61010-1:2010/AMD1: 2016. Application Domains, Industrial, Laboratory, Medical.
The IN 400-S is a closed loop (compensated) current transducer from LEM for the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation.
It offers low temperature drift and wide frequency bandwidth. Typical applications include Feedback 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: operating temperature −40 ... 85 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | IN |
| Product Reference | IN 400-S |
| Primary Nominal Current | −400 ... 400 A |
| Supply Voltage | 14.25 ... 15.75 V |
| Measurement | current: DC, AC, pulsed... |
| Mounting | Busbar Mount |
| Application Domain | Industrial, Laboratory, Medical |
| Electrical Data — IN 400-S | |
|---|---|
| Primary Nominal RMS Current (IPN) | −400 ... 400 A |
| Primary Current, Measuring Range (IPM) | −600 ... 600 A |
| Supply Voltage (UC) | 14.25 ... 15.75 V |
| Current Consumption (IC) | 0.387 A |
| Accuracy & Dynamic Performance | |
|---|---|
| Response Time to 90 % of IPN Step | 200 ns |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 4.95 kV |
| Impulse Withstand Voltage (1.2/50 µs) UNi | 8 kV |
| Creepage Distance (dCp) | 11.2 mm |
| Clearance (dCI) | 11.2 mm |
| Comparative Tracking Index (CTI) | 600 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 ... 85 °C |
| Ambient Storage Temperature (TA st) | −40 ... 85 °C |
| Mass (m) | 305 g |
| Standards & Certifications | |
|---|---|
| IEC 61010-1 | Compliance |
Note: Specifications are taken from the official IN 400-S datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the IN 400-S.
Outline dimensions, pin layout and connection diagrams of the IN 400-S are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 305 g |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the IN 400-S.
The characteristic curves of the IN 400-S from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Response Time to 90 % of IPN Step | 200 ns |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the IN Series share the same measurement principle, mounting concept and output interface family.
