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AC Current Transducer
| Supply Voltage | (Loop powered) 24 V DC |
| Operating Temperature Range | (0-95 % RH) −20 … |
| Isolation Test Voltage | 3 kV |
| Frequency Bandwidth (BW) | 10-400 Hz |
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 3 kV |
| RMS voltage for AC insulation test 1), 50 Hz (U) | 1 min 3 kV |
VFD Controlled Loads VFD output indicates how the motor and attached load are operating, SCR Silicon Controlled Loads Accurate measurement of phase angle fired or burst fired (time proportioned) SCRs, Switching Power Supplies and Electronic Ballasts True RMS sensing is the most accurate way to measure power supply or ballast input power. Options on request, DIN mounting
The AKR 50 C420L is a None current transducer from LEM.
Since it cannot saturate, very high and short-circuit currents are measured without degradation. Typical applications include VFD Controlled Loads VFD output indicates how the motor and attached load are operating, SCR Silicon Controlled Loads Accurate measurement of phase angle fired or burst fired (time proportioned) SCRs, Switching Power Supplies and Electronic Ballasts True RMS sensing is the most accurate way to measure power supply or ballast input power. Options on request and DIN mounting.
Key characteristics from the official datasheet: frequency bandwidth 10-400 Hz; operating temperature (0-95 % RH) −20 ….
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | AKR |
| Product Reference | AKR 50 C420L |
| Supply Voltage | (Loop powered) 24 V DC |
| Measurement | — |
| Mounting | Panel Mount |
| Application Domain | Renewable Energies and |
| Electrical Data — AKR 50 C420L | |
|---|---|
| Supply Voltage (UC) | (Loop powered) 24 V DC |
| Supply voltage (Loop powered) (U) | 24 V |
| Accuracy & Dynamic Performance | |
|---|---|
| Frequency Bandwidth (BW) | 10-400 Hz |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 3 kV |
| RMS voltage for AC insulation test 1), 50 Hz (U) | 1 min 3 kV |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | (0-95 % RH) −20 … |
| Ambient Storage Temperature (TA st) | −20 … +85 °C |
| Mass (m) | 90 g |
| General Tolerance | ±1 mm |
| Ambient operating temperature (0-95 % RH) −20 … (T) | +50 °C |
| Ambient storage temperature −20 … (T) | +85 °C |
| Sandards Safety IEC 61010-1: | 2001 |
| EMC EN 61326-1: | 2005 |
Note: Specifications are taken from the official AKR 50 C420L datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the AKR 50 C420L.
Outline dimensions, pin layout and connection diagrams of the AKR 50 C420L are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±1 mm |
| Mass | 90 g |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the AKR 50 C420L.
Characteristic curve diagrams are not included in the AKR 50 C420L datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Frequency Bandwidth (BW) | 10-400 Hz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the AK Series share the same measurement principle, mounting concept and output interface family.
