True RMS Current Sensor, AC/DC 1mA-5A Input, DC 0-20mA Output

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$186.96

True RMS current sensor supports a wide input range from AC/DC 1mA to 5A. Output is a true RMS voltage, with specifications of DC 0~20mA or 4~20mA. The TRMS sensor has an accuracy class of 0.5, a load capacity of 6V, and a response time of less than 250ms. It has a temperature drift of 300 x 10⁻⁶/°C and operates with auxiliary power options of DC +12V or +24V. Ideal for monitoring current in industrial equipment, power distribution systems, renewable energy setups, electric vehicle charging stations, HVAC systems, battery management, and automated control systems.

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Output *
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SKU: ATO-CUS-127S01

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Overview
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The True RMS current sensor measures AC/DC currents from 1mA to 5A, with output options of 0-20mA or 4-20mA. It offers 0.5 accuracy, a 6V load capacity, and a fast response time. Operating on DC +12V or +24V, it’s ideal for monitoring current in industrial, power, renewable energy, electric vehicle, HVAC, and automation systems.

Specification

Model	ATO-WBI127S01
Input
Input Current	AC/DC 1mA, 5mA, 20mA, 50mA, 200mA, 500mA, 1A, 2A, 5A (expandable with external shunt resistor) (optional)
Allowable Overload	10 times the rated input current value, sustained for 1 second, with a 300-second interval, repeatable 5 times
Linear Measurement Range	0%~120% of rated input
Frequency Range	±DC/20Hz ~ 10kHz
Input Impedance	Ri = 50mV/kx (where x represents the measured current)
Output
Output Type	True RMS voltage output
Output Specifications	DC 0~20mA; 4~20mA (optional)
Accuracy Class	0.5
Load Capacity	6V
Response Time	< 250ms
Temperature Drift	300 x 10⁻⁶/°C
Other parameters
Auxiliary Power	DC +12V，+24V
Static Current	≤37mA
Isolation Characteristics	Inputs and outputs isolated, outputs powered
Isolation Withstand Voltage	DC 1.5kV，1min
Operating Temperature	0℃～50℃
Storage Temperature	-25℃～+70℃
Enclosure Protection Rating	IP20
Mean Time Between Failures (MTBF)	＞50000h
Enclosure Material (Acc. to UL94V-0)	Flame retardant ABS
Mounting	Snap-on construction for NS35/7.5, NS35/15 or European standard EN50022 rails or with M3 screws.
Weight	<90g

Note: Other parameters contact customer service.

Feature

Photonic Isolation Principle: Utilizes optical isolation to provide high-precision current measurements for both AC and DC inputs, ensuring safety and signal integrity.
High Accuracy & Wide Frequency Response: Provides precise current measurements across a wide frequency range, ensuring reliable data in applications with both sinusoidal and non-sinusoidal currents.
Low Drift and Low Power Consumption: Designed for minimal temperature drift (300 x 10⁻⁶/°C) and low power usage, making it highly efficient for long-term, continuous monitoring.
Wide Temperature Range: Operates effectively in a broad temperature range from -25°C to +70°C, suitable for use in diverse environmental conditions.
Compact and Simple Design: Features a modular, snap-in design for easy installation, allowing quick integration into existing systems.
Reliable and Easy Wiring: Equipped with PCB-fixed screw terminals for secure and convenient wiring. The terminal design ensures a stable connection, making it ideal for use in systems subject to vibration.
Vibration-resistant: The screw terminal connection and spring-loaded protection system ensure a secure and stable connection even in high-vibration environments.

Size (Unit: mm)

Wiring Method

Application

Tips: What is the temperature drift?

The temperature drift of the sensor is 300 x 10⁻⁶/°C, meaning that for every degree Celsius change in temperature, the sensor’s reading may shift by 0.0003%. This minimal drift ensures stable performance across a wide temperature range, making it reliable even in environments with temperature fluctuations, such as industrial settings or outdoor installations.