# Current Transducer, AC, AKR Series, Solid Core, 50A, 1 %, 4-20 mA Output, 24 Vdc

![Product image](https://novapart.co/image/farnell:2146881/)

**URL**: https://novapart.co/products/AKR%2050%20C420L/current-transducer-ac-akr-series-solid-core-50a-1
**SKU**: AKR 50 C420L
**Manufacturer**: LEM
**Category**: Sensors & Transducers || Sensors || Current Sensors
**Price**: €526.8300
**Stock**: 10+
**Lead Time**: 57 days (indicative)

## Description

Sensor Output:Current; Supply Voltage DC Min:24V; Supply Voltage DC Max:-; Current Measuring Range DC:-; Current Measuring Range AC:-; Response Time:-; Accuracy %:1%; Product Range

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Accuracy % | 1% |
| Product Range | AKR Series |
| Sensor Output Type | Current |
| Supply Voltage Dc Min | 24V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2146881/)

## **AC Current transducer AKR-C420L** 

## **I = 2..200A PN** 

Transducer for the electronic measurement AC waveforms current, with galvanic isolation between the primary (High power) and the secondary circuits (Electronic circuit). Jumper selectable ranges and True RMS 4-20mA current output. ~~ce~~ A) ES 

## **Electrical data** ~~C~~ T 

Primary Nominal CurrentAnalogue Output Signal[1)] Type RoHS IPN (A.t.RMS) IOUT (mA) Date Code 2,5 4-20 **AKR 5 C420L** JULY 2006 10,20,50 4-20 **AKR 50 C420L** planned 100,150,200 4-20 **AKR 200 C420L** JULY 2006 

Vc Supply voltage (Loop powered) 24 V DC RL Load resistance see power supply diagram **V** b Rated voltage (CAT III, PD2) 150 VAC Vd RMS Isolation voltage test, 50 Hz, 1mn 3 kV AC f Frequency bandwith 10-400 Hz 

## **Features** 

- VFD and SCR waveforms current measurement 

- True RMS responding 

- 4-20 mA Current output 

- Loop powered transducers 

- Panel mounting 

- Accurate 

- Jumper selectable ranges 

## **Advantages** 

- Large aperture 

## **Accuracy - Dynamic performance data** 

X Accuracy @ IPN, TA=25°C ± 1 % tr Response time @ 90% of IPN < 600 mS **General data** LC TA Ambient operating temperature (0-95% RH) -20 ..+ 50 °C TS Ambient storage temperature -20 ..+ 85 °C m Mass 90 g Safety IEC 61010-1 EMC EN 61326 

- Note: 1) For 4-20mA output model, no saturation output up to 23 mA. 

## **Selecting the transducer** 

VFD (Variable Frequency Drive) and SCR (Semi Conductor Rectifier) output waveforms are rough approximations of a sine wave. There are numerous spikes and dips in each cycle. AKR transducers use a mathematical  algorithm called “True RMS,” which integrates the actual waveform over time. True RMS is the only way to accurately measure distorted AC waveforms. _Select AKR transducers for nonlinear loads or in “noisy” power environments._ 

- High isolation between primary and secondary circuits 

- Easy to mount 

## **Applications** 

- VFD Controlled Loads: 

VFD output indicates how the motor and attached load are operating. 

- SCR Controlled Loads: 

   - Acurate measurement of phase angle fired or burst fired (time proportioned) SCRs. 

- Switching Power Supplies and Electronic Ballasts: 

   - True RMS sensing is the most accurate way to measure power supply or ballast input power. 

## **Options on request** 

- DIN mounting 

081107/7 Page 1/2 

LEM  reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 

LEM 

www.lem.com 

## **Dimensions AKR-C420L** (unit : mm,  1mm = 0.0394 inch) 

**==> picture [355 x 323] intentionally omitted <==**

**----- Start of picture text -----**<br>
61.0<br>19<br>Iv [ [i] |<br>23.5 23.7<br>88.9<br>i<br>i<br>i<br>4.5<br>l<br>||.| jee<br>a 39 i<br>|<br>| 78<br>a<br>55.4<br>49<br>24.5<br>3.2<br>5<br>1<br>**----- End of picture text -----**<br>


## **Mechanical characteristics** 

- General tolerance ± 1 mm • Primary aperture 19 mm • Panel mounting 2 holes ∅ 4.5mm Distance between holes 78 mm 

## **Power Supply diagram** 

## **Connections** 

- 2 x UNC8 Cylindric Head 

## **Remark** 

- Temperature of the primary conductor should not exceed 60°C. 

081107/7 

Page  2/2 

LEM  reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 

LEM 

www.lem.com 



## Links

- [View this product on Novapart](https://novapart.co/products/AKR%2050%20C420L/current-transducer-ac-akr-series-solid-core-50a-1)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/lem/akr-50-c420l/current-transducer-50a-ac-4-20ma/dp/2146881)
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