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Closed loop (compensated)
| Primary Current, Measuring Range | 0 .. ± 2700 A |
| Supply Voltage | ±14.25 .. ±25.2 V |
| Operating Temperature Range | −40 … 85 °C |
| Turns Ratio (NP/NS) | 1 : 5000 |
| Current Consumption (IC) | 44 + IS mA @ ±UC = ±15 V / 49 + IS mA @ ±UC = ±24 V |
| Resistance of Secondary Winding (RS) | 29.9 Ohm |
Windmill inverters, Test and measurement, Substations, AC variable speed and servo motor drives, Statics converters for DC motors drives, Battery supplied applications, Uninterruptible Power Supplies (UPS), Switched Mode Power Supplies (SMPS), Power supplies for welding applications.
The LF 1010-S/SPA3 is a closed loop (compensated) current transducer from LEM for the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation.
Typical applications include Windmill inverters, Test and measurement, Substations and AC variable speed and servo motor drives.
Key characteristics from the official datasheet: linearity error ± 0.15 %; frequency bandwidth 200 kHz; operating temperature −40 … 85 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | LF |
| Product Reference | LF 1010-S/SPA3 |
| Supply Voltage | ±14.25 .. ±25.2 V |
| Measurement | current: DC, AC, pulsed... |
| Mounting | Panel Mount |
| Application Domain | — |
| Electrical Data — LF 1010-S/SPA3 | |
|---|---|
| Primary Current, Measuring Range (IPM) | 0 .. ± 2700 A |
| Turns Ratio (NP/NS) | 1 : 5000 |
| Supply Voltage (UC) | ±14.25 .. ±25.2 V |
| Current Consumption (IC) | 44 + IS mA @ ±UC = ±15 V / 49 + IS mA @ ±UC = ±24 V |
| Resistance of Secondary Winding (RS) | 29.9 Ohm |
| Accuracy & Dynamic Performance | |
|---|---|
| Linearity Error (εL) | ± 0.15 % |
| Electrical Offset Current (IO) | ± 1 A |
| Magnetic Offset Current (IO M) | ± 1 A |
| Frequency Bandwidth (BW) | 200 kHz |
| Insulation Coordination | |
|---|---|
| Impulse Withstand Voltage (1.2/50 µs) UNi | 16 kV |
| Comparative Tracking Index (CTI) | 600 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 … 85 °C |
| Ambient Storage Temperature (TA st) | −50 … 90 °C |
| Mass (m) | 435 g |
| Standards & Certifications | |
|---|---|
| EN 50178 | 1997 |
| UL 508 | 2010 |
Note: Specifications are taken from the official LF 1010-S/SPA3 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the LF 1010-S/SPA3.
Outline dimensions, pin layout and connection diagrams of the LF 1010-S/SPA3 are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 435 g |
| Resistance of Secondary Winding (RS) | 29.9 Ohm |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the LF 1010-S/SPA3.
The characteristic curves of the LF 1010-S/SPA3 from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Linearity Error (εL) | ± 0.15 % |
| Frequency Bandwidth (BW) | 200 kHz |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the LF Series share the same measurement principle, mounting concept and output interface family.
