Authorized Distributor
?
Current Transducer
| Primary Current, Measuring Range | 2500 A |
| Supply Voltage | 1) +20 ... 50 V DC |
| Operating Temperature Range | −40 … +70 °C |
| Isolation Test Voltage | 5.8 kV |
| Primary Nominal RMS Current (IPN) | 1500 A |
| Current Consumption (IC) | 30 mA + I |
AC power supplies or Motors: True RMS current sensing - the most accurate way to monitor power supply or motor input power, VFD Controlled Loads: VFD output current monitoring attached load are operating, SCRs or Swith-mode Rectifiers: Accurate measurement of output current, Renewable Energy Installations Continuous condition minitoring allowing automatic failure detection/ anticipation.
The AHR 1500 B420 is a None current transducer from LEM.
Typical applications include AC power supplies or Motors: True RMS current sensing - the most accurate way to monitor power supply or motor input power, VFD Controlled Loads: VFD output current monitoring attached load are operating, SCRs or Swith-mode Rectifiers: Accurate measurement of output current and Renewable Energy Installations Continuous condition minitoring allowing automatic failure detection/ anticipation.
Key characteristics from the official datasheet: frequency bandwidth DC 20 … 6000 Hz; operating temperature −40 … +70 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | AHR |
| Product Reference | AHR 1500 B420 |
| Primary Nominal Current | 1500 A |
| Supply Voltage | 1) +20 ... 50 V DC |
| Measurement | — |
| Mounting | Panel Mount |
| Application Domain | Energy solutions |
| Electrical Data — AHR 1500 B420 | |
|---|---|
| Primary Nominal RMS Current (IPN) | 1500 A |
| Primary Current, Measuring Range (IPM) | 2500 A |
| Supply Voltage (UC) | 1) +20 ... 50 V DC |
| Current Consumption (IC) | 30 mA + I |
| Accuracy & Dynamic Performance | |
|---|---|
| Frequency Bandwidth (BW) | DC 20 … 6000 Hz |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 5.8 kV |
| Creepage Distance (dCp) | 11.9 mm |
| Clearance (dCI) | 11.9 mm |
| Comparative Tracking Index (CTI) | 225 |
| Rated Insulation Voltage (basic) | 1000 V |
| Rated Insulation Voltage (reinforced) | 500 V |
| Overvoltage Category / Pollution Degree | Over voltage category OV · Pollution degree PD2 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 … +70 °C |
| Ambient Storage Temperature (TA st) | −40 … +85 °C |
| Mass (m) | 650 g |
| Case Material | Insulating plastic case recognized according to UL 94-V0. |
| General Tolerance | ±1.0 mm |
| Standards & Certifications | |
|---|---|
| EN 50178 | 1997 |
Note: Specifications are taken from the official AHR 1500 B420 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the AHR 1500 B420.
Outline dimensions, pin layout and connection diagrams of the AHR 1500 B420 are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±1.0 mm |
| Mass | 650 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 AHR 1500 B420.
Characteristic curve diagrams are not included in the AHR 1500 B420 datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Frequency Bandwidth (BW) | DC 20 … 6000 Hz |
Note: For the full set of performance data, refer to the datasheet.
Other models of the AHR Series share the same measurement principle, mounting concept and output interface family.
