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Closed loop (compensated)
| Primary Current, Measuring Range | 0 .. ± 800 A |
| Secondary Nominal Current | 0.1 A |
| Operating Temperature Range | −40 … 85 °C |
| Isolation Test Voltage | 3.8 kV |
| Primary Nominal RMS Current (IPN) | 500 A |
| Secondary Nominal RMS Current (ISN) | 0.1 A |
Windmill inverters, Test and measurement, AC variable speed 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 LF 510-S 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, AC variable speed and servo motor drives and Static converters for DC motor drives.
Key characteristics from the official datasheet: linearity error ± 0.1 %; frequency bandwidth 200 kHz; operating temperature −40 … 85 °C; nominal secondary output 0.1 A.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | LF |
| Product Reference | LF 510-S |
| Primary Nominal Current | 500 A |
| Measurement | current: DC, AC, pulsed... |
| Mounting | Panel Mount |
| Application Domain | Industrial |
| Electrical Data — LF 510-S | |
|---|---|
| Primary Nominal RMS Current (IPN) | 500 A |
| Primary Current, Measuring Range (IPM) | 0 .. ± 800 A |
| Secondary Nominal RMS Current (ISN) | 0.1 A |
| 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) | 52.8 Ohm |
| Accuracy & Dynamic Performance | |
|---|---|
| Linearity Error (εL) | ± 0.1 % |
| Electrical Offset Current (IO) | ± 1 A |
| Magnetic Offset Current (IO M) | ± 0.7 A |
| Frequency Bandwidth (BW) | 200 kHz |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 3.8 kV |
| Impulse Withstand Voltage (1.2/50 µs) UNi | 12.5 kV |
| Creepage Distance (dCp) | 15.6 mm |
| Clearance (dCI) | 14.6 mm |
| Comparative Tracking Index (CTI) | 600 |
| Rated Insulation Voltage (basic) | 1000 V |
| Rated Insulation Voltage (reinforced) | 1000 V |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 … 85 °C |
| Ambient Storage Temperature (TA st) | −50 … 90 °C |
| Mass (m) | 240 g |
| Case Material | V0 according to UL 94 |
| Standards & Certifications | |
|---|---|
| IEC 61010-1 | 2010 |
| IEC 61800-5-1 | 2007 |
| IEC 62109-1 | 2010 |
| UL 508 | 2013 |
Note: Specifications are taken from the official LF 510-S datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the LF 510-S.
Outline dimensions, pin layout and connection diagrams of the LF 510-S are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 240 g |
| Resistance of Secondary Winding (RS) | 52.8 Ohm |
| Case Material | V0 according to UL 94 |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the LF 510-S.
The characteristic curves of the LF 510-S from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Linearity Error (εL) | ± 0.1 % |
| 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.
