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Closed loop (compensated)
| Primary Current, Measuring Range | 0 .. ± 1300 A |
| Conversion Ratio (KN) | 1 : 4000 |
| Secondary Nominal RMS Current (ISN) | 200 mA |
| Response Time to 90 % of IPN Step | < 1 µs |
| Operating Temperature Range | - 40 .. + 85 °C |
| di/dt Accurately Followed | > 50 A/µs |
UNVERIFIED.
The LT 505-T/SP12 is a closed loop (compensated) current transducer from LEM for the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation.
It offers excellent accuracy, very good linearity, low temperature drift and wide frequency bandwidth. Typical applications include UNVERIFIED.
Key characteristics from the official datasheet: linearity error < 0.1 %; frequency bandwidth DC .. 150 kHz; operating temperature - 40 .. + 85.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | LT |
| Product Reference | LT 505-T/SP12 |
| Primary Nominal Current | 800 A |
| Supply Voltage | ± 15 V |
| Measurement | currents: DC, AC, pulsed... |
| Mounting | — |
| Application Domain | — |
| Electrical Data — LT 505-T/SP12 | |
|---|---|
| Primary Nominal RMS Current (IPN) | 800 A |
| Primary Current, Measuring Range (IPM) | 0 .. ± 1300 A |
| Secondary Nominal RMS Current (ISN) | 200 mA |
| Conversion Ratio (KN) | 1 : 4000 |
| Supply Voltage (UC) | ± 15 V |
| Current Consumption (IC) | 24 + I S mA • V N = ± 15 (± 5 %) V |
| Accuracy & Dynamic Performance | |
|---|---|
| Overall Accuracy @ IPN, TA = 25 °C (XG) | ± 0.5 % |
| Linearity Error (εL) | < 0.1 % |
| Offset Current @ IP = 0, TA = 25 °C (IO) | ± 0.5 mA |
| Temperature Variation of IO (Max) | ± 1.0 mA |
| Response Time to 90 % of IPN Step (tr) | < 1 µs |
| di/dt Accurately Followed | > 50 A/µs |
| Frequency Bandwidth (-1 dB) (BW) | DC .. 150 kHz |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | - 40 .. + 85 °C |
| Ambient Storage Temperature (TA st) | - 45 .. + 90 °C |
| Standards & Certifications | |
|---|---|
| EN 50155 | Compliance |
Note: Specifications are taken from the official LT 505-T/SP12 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the LT 505-T/SP12.
Outline dimensions, pin layout and connection diagrams of the LT 505-T/SP12 are shown below.
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the LT 505-T/SP12.
Characteristic curve diagrams are not included in the LT 505-T/SP12 datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Overall Accuracy @ IPN, TA = 25 °C (XG) | ± 0.5 % |
| Linearity Error (εL) | < 0.1 % |
| Response Time to 90 % of IPN Step (tr) | < 1 µs |
| di/dt Accurately Followed | > 50 A/µs |
| Frequency Bandwidth (-1 dB) (BW) | DC .. 150 kHz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the LT Series share the same measurement principle, mounting concept and output interface family.
