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AC Current Sensor, 5A/10A/20A/50A/100A/150A to 400A

5 out of 5 based on 2 reviews | Write a review

$69.26

AC current sensor adopts electromagnetic isolation principle, small size, light weight, low price, fast response, high accuracy, good stability, and DIN rail installation. AC current sensor is widely used for AC current measurement of various occasions, especially for sine-wave ac current with power frequency 50Hz.

Measuring Range *
Output Signal *
Power Supply for 0-10V *
Power Supply for 0-20mA *
Power Supply for 0-5V *
Power Supply for 1-5V *
Power Supply for 4-20mA *
Hole Diameter Selection (for 0-5A) *
Hole Diameter Selection (for 0-10A) *
Hole Diameter Selection (for 0-100A) *
Hole Diameter Selection (for 0-150A) *
Hole Diameter Selection (for 0-200A) *
Hole Diameter Selection (for 0-300A) *
Hole Diameter Selection (for 0-400A) *
Hole Diameter Selection (for 0-50A) *

SKU: ATO-CUS-AC400

Qty:

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Delivery date: 6-12 days

Overview
PDF Catalog
Related Video

AC current sensor has measuring range of 5A/10A/20A/40A/50A/100A/150A to 400A.

Specification:

Model	ATO-CURTS-DJIC
Shipping weight	0.5kg
Measuring range of input current *	AC 0-400A
Output signal *	DC 4-20mA, DC 0-20mA, DC 1-5V, DC 0-5V, DC 0-10V (customizable)
Power supply *	DC 24V, DC 12V, AC 220V, AC 110V (customizable)
Accuracy	0.5%F.S.
Isolation voltage	3kV/50Hz/1min
Offset voltage	≤10mV
Temperature drift	≤100PPM/℃
Frequency bandwidth	20~50Hz
Current consumption	＜5mA
Load capacity	Voltage output: 5mA, current output: 6V
Response time	＜250ms
Overload capacity	30 times nominal input
Work temperature	-10~+70℃
Storage temperature	-25~+85℃
measuring method	Through-hole
Hole diameter	22mm
Installation	DIN rail and screw fixation

Dimension and wiring diagram:
AC current sensor 5A to 400A dimension and wiring
Tips: How to improve anti-interference and degauss?
1. Methods of improving anti-interference of ac current sensor

Adjust the direction of current sensor, so that external magnetic field has no effect on sensitive devices of sensors.
Use shielded current sensor or use a shielding case to shield external magnetic.

2. Degauss
If primary side current already exists, while ac current sensor is not equipped with working power supply, or secondary side is in open circuit status. Then the magnetic circuit in current sensor is magnetized and remanence generates, thus affecting the measuring accuracy. In this case, ac current sensor needs to degauss.
The method is as follows:
Don't power on current sensor, but add alternating current with a nominal rated value Ii to the primary side wire, then the current is reduced to zero from the large smoothly, thus completing the demagnetization.

Download ATO current sensor catalog (pdf).

What is a transmitter?

Transmitter is an indispensable part of industrial signal standardization. It can convert non-standard analog signals into standard analog signals such as 4-20mA, 0-20mA, 0-10V, 0-5V, etc.

Existing reviews of AC Current Sensor, 5A/10A/20A/50A/100A/150A to 400A

Highly practical and dependable

This sensor is accurate and stable with fast response. It supports multiple ranges and outputs, easy DIN‑rail installation.

From: Zoe | Date: 03/03/2026

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100A AC current sensors are well used at 8,200 feet

I bought three 100A current sensors last year. And they are well used at 8,200 feet above sea level. The current signal collected by the AC current sensor is very accurate and linear. DIN rail can be easy to install and wire. The 4-20mA current signal is directly inputted to the PLC and then displayed by the upper computer. So I go back to ATO to place another order for the same model.

From: Tristan | Date: 11/07/2019

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