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Closed loop (compensated) current transducer using the Hall effect
| Primary Current, Measuring Range | 0 … ±40 A |
| Supply Voltage | +24 V |
| Operating Temperature Range | (continuous) −25 |
| Frequency Bandwidth (BW) | DC … 1 kHz |
| Creepage Distance (dCp) | 12 mm |
| Clearance (dCI) | 10 mm |
Points condition monitoring, Signal light indication, Battery supplied applications, Uninterruptable Power Supplies (UPS). Application Domain(s), Track side. Notes: out conductor in the center the test IEC 61000-4-3 @ 20V/m between 500 MHz and 1 GHz.
The PCM 20-P is a closed loop (compensated) current transducer from LEM.
It offers excellent accuracy and very good linearity. Typical applications include Points condition monitoring, Signal light indication, Battery supplied applications and Uninterruptable Power Supplies (UPS). Application Domain(s).
Key characteristics from the official datasheet: frequency bandwidth DC … 1 kHz; operating temperature (continuous) −25.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | PCM |
| Product Reference | PCM 20-P |
| Supply Voltage | +24 V |
| Measurement | — |
| Mounting | Panel Mount |
| Application Domain | — |
| Electrical Data — PCM 20-P | |
|---|---|
| Primary Current, Measuring Range (IPM) | 0 … ±40 A |
| Supply Voltage (UC) | +24 V |
| Accuracy & Dynamic Performance | |
|---|---|
| Frequency Bandwidth (BW) | DC … 1 kHz |
| Insulation Coordination | |
|---|---|
| Creepage Distance (dCp) | 12 mm |
| Clearance (dCI) | 10 mm |
| Comparative Tracking Index (CTI) | 175 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | (continuous) −25 |
| Ambient Storage Temperature (TA st) | −25 … +85 °C |
| Mass (m) | 130 g |
| Case Material | Insulating plastic case recognized according to UL 94-V0 |
| General Tolerance | ±0.5 mm |
| Standards & Certifications | |
|---|---|
| : E lectrically driven points machine BS | |
Note: Specifications are taken from the official PCM 20-P datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the PCM 20-P.
Outline dimensions, pin layout and connection diagrams of the PCM 20-P are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±0.5 mm |
| Mass | 130 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 PCM 20-P.
Characteristic curve diagrams are not included in the PCM 20-P datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Frequency Bandwidth (BW) | DC … 1 kHz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the PCM Series share the same measurement principle, mounting concept and output interface family.
