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Open loop transducer using Hall effect
| Primary Current, Measuring Range | ±300 A |
| Output Voltage (Analog) @ IPN | ±4 V |
| Supply Voltage | ±15 V |
| Accuracy @ IPN | ±1 % of IPN |
| Operating Temperature Range | −25 ... +85 °C |
| Isolation Test Voltage | 4.0 kV |
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 100-S is an open loop current transducer from LEM for the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation, delivering an instantaneous output voltage of ±4 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 ... 50 kHz; operating temperature −25 ... +85 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | HTA |
| Product Reference | HTA 100-S |
| Primary Nominal Current | 100 A |
| Supply Voltage | ±15 V |
| Measurement | currents: DC, AC, pulsed... |
| Mounting | Panel Mount |
| Application Domain | Industrial |
| Electrical Data — HTA 100-S | |
|---|---|
| Primary Nominal RMS Current (IPN) | 100 A |
| Primary Current, Measuring Range (IPM) | ±300 A |
| Output Voltage (Analog) @ IPN | ±4 V |
| Load Resistance (RL) | > 1 kΩ (TA = 0 ... +70 °C); > 3 kΩ (TA = −25 ... +85 °C) |
| Supply Voltage (UC) | ±15 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 |
| Magnetic Offset Voltage (VO M) after an overload of 3 × IPN | ±10 mV |
| Temperature Coefficient of VO E (−25 ... +85 °C) | < ±1 mV/K |
| Temperature Coefficient of Vout (−25 ... +85 °C) | < ±0.05 %/K |
| Frequency Bandwidth (−3 dB) | DC ... 50 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 ... +85 °C |
| Ambient Storage Temperature (TA st) | −25 ... +85 °C |
| Mass (m) | 230 g |
| Case Material | Insulating plastic case recognized according to UL 94-V0. |
| General Tolerance | ±1 mm |
| Standards & Certifications | |
|---|---|
| EN 50178 | 1997 |
Note: Specifications are taken from the official HTA 100-S datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the HTA 100-S.
Outline dimensions, pin layout and connection diagrams of the HTA 100-S are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±1 mm |
| Mass | 230 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 100-S.
Characteristic curve diagrams are not included in the HTA 100-S 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 |
| Temperature Coefficient of Vout (−25 ... +85 °C) | < ±0.05 %/K |
| Frequency Bandwidth (−3 dB) | DC ... 50 kHz |
| Reference Conditions | |
|---|---|
| Ambient Temperature (TA) | 25 °C, unless otherwise noted |
| Output Load Resistance (RL) | > 1 kΩ (TA = 0 ... +70 °C); > 3 kΩ (TA = −25 ... +85 °C) |
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.
