True RMS Current Sensor, AC/DC 1mA-5A Input, DC 0-10V Output

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$177.79

The TRMS sensor offers a wide input range including 1mA, 5mA, 20mA, 50mA, 75mA, 0.2A, 0.5A, 1A, 2A, and 5A, which can be expanded using an external shunt resistor. With auxiliary power options of DC +12V or +24V and has a static current consumption of ≤34mA. It has an enclosure protection rating of IP20, offering protection against dust and moisture in typical environments. The enclosure is made from flame-retardant ABS material, ideal for use in industrial equipment, power distribution systems, renewable energy systems, and automated control panels.

Input Current *
Output *

SKU: ATO-CUS-125S01

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Delivery date: 6-12 days

Overview

True RMS sensor supports input from 1mA to 5A (expandable with a shunt resistor) and operates on DC +12V or +24V with ≤34mA static current. Its IP20-rated flame-retardant ABS enclosure provides dust and moisture protection, making it ideal for industrial, power, renewable energy, and control systems.

Specification

Model	ATO-WBI125S01
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 0~5V; 0~10V (when powered by +24V) (optional)
Accuracy Class	0.5
Load Capacity	5mA
Response Time	< 250ms
Temperature Drift	250 x 10⁻⁶/°C
Other parameters
Auxiliary Power	DC +12V，+24V
Static Current	≤33mA
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

Accurate RMS Measurement: Measures both AC and DC currents with true RMS conversion, providing precise DC voltage output.
Wide Frequency Range: Supports a broad frequency range and is suitable for measuring distorted waveforms, including square, triangular, and sawtooth waves.
High Isolation & Fast Response: Features linear optoelectronic isolation and quick response time for real-time current monitoring.
Low Power Consumption & Wide Temperature Range: Operates efficiently with low power consumption and a wide temperature range of -25°C to +70°C.
Easy Installation: Modular design with terminal connections for straightforward installation in various applications.

Size (Unit: mm)

Wiring Method

True RMS current sensor 0-10V wiring method

Application

True RMS current sensor application

Tips: What is a True RMS Current Sensor?

A True RMS Current Sensor is a device used to measure the root mean square (RMS) value of an electrical current, providing accurate readings regardless of the waveform shape. Unlike traditional sensors that may only accurately measure sinusoidal AC currents, a True RMS sensor can measure both AC and DC currents, including non-sinusoidal waveforms such as those found in modern electronic devices and industrial machinery. By calculating the RMS value, which represents the effective value of the current, this sensor offers precise measurements that reflect the real power consumption or load, making it ideal for applications where the current waveform is irregular or fluctuating.

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