Product Overview
The LEM AKR-C420L AC Current Transducer is designed for electronic measurement of AC current with galvanic separation between the primary and secondary circuits. It features jumper-selectable ranges and a True RMS measurement capability, making it ideal for accurately measuring distorted AC waveforms in applications with nonlinear loads or noisy power environments. The transducer offers a 4-20 mA current output and is loop-powered, simplifying installation. Key advantages include a large aperture, high insulation, and easy panel mounting. It is suitable for VFD controlled loads, SCR silicon controlled loads, switching power supplies, and electronic ballasts, with an application domain in Renewable Energies and Power Supplies.
Product Attributes
- Brand: LEM International SA
- Product Series: AKR-C420L
- Certifications: IEC 61010-1: 2001, EN 61326-1: 2005
- Mounting Type: Panel mounting
- Primary Aperture: 19 mm
- Primary Conductor Temperature Limit: 60 C
Technical Specifications
| Specification | Details |
|---|---|
| Models | AKR 5 C420L, AKR 50 C420L, AKR 200 C420L |
| Primary Nominal Current (IP N) | 2, 5, 10, 20, 50, 100, 150, 200 A (Jumper selectable) |
| Analog Output (Iout) | 4-20 mA |
| Supply Voltage (Loop Powered) | 24 V DC |
| Load Resistance (RL) | See power supply diagram |
| Accuracy (tot @ IP N, TA = 25 C) | 1 % |
| Delay Time (tD 90) | < 600 ms (for IP N step) |
| Frequency Bandwidth (BW) | 10-400 Hz |
| Ambient Operating Temperature (TA) | -20 +50 C (0-95 % RH) |
| Ambient Storage Temperature (TA st) | -20 +85 C |
| Mass (m) | 90 g |
| Insulation Test Voltage (Ud RMS) | 3 kV AC (50 Hz, 1 min) |
| Rated Insulation Voltage (UNm) | 150 V AC (CAT III, PD2) |
| Panel Mounting Holes | 2 holes 4.5 mm, 78 mm distance between centers |
| Connections | 2 UNC8 Cylindric head (Captive screw terminals, 12-22 AWG solid or stranded) |
| Output Saturation (4-20 mA model) | No saturation up to 23 mA |
2411192347_LEM-AKR200C420L_C5942590.pdf
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