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Closed loop (compensated) current transducer using the Hall effect
| Primary Current, Measuring Range | 0 .. ± 600 A |
| Supply Voltage | ± 15 V |
| Operating Temperature Range | - 40 .. + 70 °C |
| Isolation Test Voltage | 6 kV |
| Current Consumption (IC) | 20 + I mA A |
| Primary nominal current rms (I) | 300 A |
Single or three phase inverter, Propulsion and braking chopper, Propulsion converter, Auxiliary converter, Battery charger. Application Domain, Traction. Page 1/3 prior notice. www.lem.com
The LA 205-S/SP33 is a closed loop (compensated) current transducer from LEM.
It offers excellent accuracy, very good linearity, low temperature drift and wide frequency bandwidth. Typical applications include Single or three phase inverter, Propulsion and braking chopper, Propulsion converter and Auxiliary converter.
Key characteristics from the official datasheet: linearity error < 0.1 %; frequency bandwidth DC .. 100 kHz; operating temperature - 40 .. + 70 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | LA |
| Product Reference | LA 205-S/SP33 |
| Primary Nominal Current | 300 A |
| Supply Voltage | ± 15 V |
| Measurement | — |
| Mounting | Busbar Mount |
| Application Domain | Traction |
| Electrical Data — LA 205-S/SP33 | |
|---|---|
| Primary Current, Measuring Range (IPM) | 0 .. ± 600 A |
| Supply Voltage (UC) | ± 15 V |
| Current Consumption (IC) | 20 + I mA A |
| Primary nominal current rms (I) | 300 A |
| Primary current, measuring range (I) | 0 .. ± 600 A |
| Measuring overload (Î) | 600 A |
| Secondary nominal current rms | 150 mA |
| Supply voltage (± 5 %) | ± 15 V |
| Current consumption | 20 mA |
| Accuracy & Dynamic Performance | |
|---|---|
| Linearity Error (εL) | < 0.1 % |
| Frequency Bandwidth (BW) | DC .. 100 kHz |
| Linearity error | < 0.1 % |
| Temperature variation of I (I) | - 40°C .. + 70°C ± 0.20 ± 0.50 mA |
| Response time 3) to 90 % of I step (t) | < 1 µs |
| BW Frequency bandwidth (- 3 dB) | DC .. 100 kHz |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 6 kV |
| Creepage Distance (dCp) | 32.8 mm |
| Rms voltage for AC isolation test, 50 Hz (V) | 1 min 6 kV |
| Rated isolation voltage rms 4), reinforced isolation (V) | 1625 V |
| CTI Comparative Tracking Index (group IIIa) | 225 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | - 40 .. + 70 °C |
| Ambient Storage Temperature (TA st) | - 50 .. + 95 °C |
| Mass (m) | 190 g |
| Ambient operating temperature (T) | - 40 .. + 70 °C |
| Ambient storage temperature (T) | - 50 .. + 95 °C |
| Standards & Certifications | |
|---|---|
| EN 50155 | Compliance |
| Standards EN 50155: | 1995 |
Note: Specifications are taken from the official LA 205-S/SP33 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the LA 205-S/SP33.
Outline dimensions, pin layout and connection diagrams of the LA 205-S/SP33 are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 190 g |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the LA 205-S/SP33.
Characteristic curve diagrams are not included in the LA 205-S/SP33 datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Linearity Error (εL) | < 0.1 % |
| Frequency Bandwidth (BW) | DC .. 100 kHz |
| Linearity error | < 0.1 % |
| Response time 3) to 90 % of I step (t) | < 1 µs |
| BW Frequency bandwidth (- 3 dB) | DC .. 100 kHz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the LA 205 305 -S -T share the same measurement principle, mounting concept and output interface family.
