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Hall effect measuring principle
| Output Voltage (Analog) @ IPN | ±10 V |
| Accuracy @ IPN | ±1 % of IPN |
| Operating Temperature Range | −25 ... +70 °C |
| Isolation Test Voltage | 4.0 kV |
| Current Consumption (IC) | < 25 mA |
| Insulation Resistance (RINS) | > 500 MΩ |
AC variable speed drives and servo motor drives, Static converters for DC motor drives, Battery supplied applications, Uninterruptible Power Supplies (UPS), Switched Mode Power Supplies (SMPS), Power supplies for welding applications.
The HTA 250-S/SP3 is a None current transducer from LEM for the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation, delivering an instantaneous output voltage of ±10 V.
It offers very good linearity, low temperature drift and wide frequency bandwidth. Typical applications include AC variable speed drives and servo motor drives, Static converters for DC motor drives, Battery supplied applications and Uninterruptible Power Supplies (UPS).
Key characteristics from the official datasheet: linearity error ±0.5 %; frequency bandwidth DC ... 25 kHz; operating temperature −25 ... +70 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | HTA |
| Product Reference | HTA 250-S/SP3 |
| Measurement | currents: DC, AC, pulsed... |
| Mounting | Panel Mount |
| Application Domain | Industrial |
| Electrical Data — HTA 250-S/SP3 | |
|---|---|
| Output Voltage (Analog) @ IPN | ±10 V |
| Current Consumption (IC) | < 25 mA |
| Insulation Resistance (RINS) | > 500 MΩ |
| Accuracy & Dynamic Performance | |
|---|---|
| Accuracy @ IPN, TA = 25 °C, ±15 V | ±1 % of IPN |
| Linearity Error (εL) (0 ... ±IPN) | ±0.5 % |
| Electrical Offset Voltage (VO E) @ IP = 0, TA = 25 °C | < ±10 mV |
| Temperature Coefficient of VO E (−25 ... +85 °C) | < ±1 mV/K |
| Frequency Bandwidth (−3 dB) | DC ... 25 kHz |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 4.0 kV |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −25 ... +70 °C |
| Ambient Storage Temperature (TA st) | −25 ... +85 °C |
| Mass (m) | 300 g |
| Case Material | Insulating plastic case recognized according to UL 94-V0. |
| General Tolerance | ±0.5 mm |
| Standards & Certifications | |
|---|---|
| EN 50178 | 1997 |
Note: Specifications are taken from the official HTA 250-S/SP3 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the HTA 250-S/SP3.
Outline dimensions, pin layout and connection diagrams of the HTA 250-S/SP3 are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±0.5 mm |
| Mass | 300 g |
| Case Material | Insulating plastic case recognized according to UL 94-V0. |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the HTA 250-S/SP3.
Characteristic curve diagrams are not included in the HTA 250-S/SP3 datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Accuracy @ IPN, TA = 25 °C, ±15 V | ±1 % of IPN |
| Linearity Error (εL) (0 ... ±IPN) | ±0.5 % |
| Temperature Coefficient of VO E (−25 ... +85 °C) | < ±1 mV/K |
| Frequency Bandwidth (−3 dB) | DC ... 25 kHz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the HTA Series share the same measurement principle, mounting concept and output interface family.
