6 Channel Through Hole 4-20mA AC Current Data Acquisition Module
Product No.: ZH-40062A-19N1
Available with wide power supply options: DC: 10-30V or 10-55V or AC/DC: 85-265V
Accuracy level: 0.2%, Linear accuracy is better than one thousandth
Current range: 100mA, 500mA, 1A, 5A, 10A, 20A, 30AAC (others can be customized)
Current perforation aperture: 6mm
6-Channel Through-Hole AC Current Data Acquisition Module Modbus RTU RS485 AC Current Transmitter
Product Overview
The ZH-40062A is an industrial-grade 6-Channel AC Current Data Acquisition Module designed for real-time electrical parameter monitoring in automation and energy management systems. Featuring a high-precision 24-bit AD chip and feed-through (perforated) current input design, this module eliminates the need for extra external transformers, significantly saving installation space and wiring costs on-site.
Equipped with an isolated RS485 communication interface using the standard Modbus RTU protocol, the module seamlessly integrates with PLCs, SCADA systems, HMIs, and IoT gateways. With True RMS (TRMS) measurement capabilities, it delivers stable and reliable current and frequency data even under noisy industrial environments.
Model Selection
ZH-40062A-19N1/*A:6 channel current acquisition,85V-265V AC/DC power supply
ZH-40062A-14N1/*A:6 channel current acquisition,10v-30V DC power supply
Key Features
1.The measurement has seven speed settings: 20ms, 40ms, 60ms, 80ms, 100ms, 400ms, and 1000ms.
2.Available with wide power supply options: DC: 10-30V or 10-55V or AC/DC: 85-265V
3.Multiple communication formats such as odd parity, even parity, no parity, and 2-stop bits can be freely set.
4.The communication speed and address have two modes:software or hardware settings, making it easy to use
5.Equipped with a frequency measurement function
6.Equipped with multiple working operation indicator lights, the red light indicates normal operation of the product (measuring speed and flashing time), and the green light indicates product communication
7.Strong anti-interference ability, with input, output, and power ports capable of withstanding surge voltages of up to 2KV or more
8.Can combine any voltage and current input, with a total of 6 channels
9.The power supply, communication, and input are isolated from each other, and the communication uses a dedicated 485 isolation chip,high reliability
Technical Specification
Or special method: no checksum, 9 digits (the 9th digit can be set to 1 or 0)
Parameter
Specification
Accuracy level
0.2% FS
Current range
100mA, 500mA, 1A, 5A, 10A, 20A, 30AAC (others can be customized)
Current perforation aperture
6mm
Frequency response
30Hz-1KHz
Working temperature
-20 ℃~+60 ℃
Temperature drift
≤ 100ppm/℃
Data update time
20ms, 40ms, 60ms, 80ms, 100ms (default), 400ms,1000ms
Isolation voltage withstand
>2500V DC
Auxiliary power supply
+10V~+30VDC or+10V~+55VDC or 85~265VAC
Rated power consumption
< 1W
Output interface
RS485 (standard Modbus RTU communication protocol)
Data output
The effective values of 6 AC sampling data channels and 1 frequency data channel
Communication baud rates
4800, 9600, 19200, 38400, 57600, 115200bps
Data format
no parity/odd parity/even parity, 8 data bits, 1 stop bit
Note: The default factory parameters for this product are: Address 1, baud rate 9600, no checksum, 8 data bits, and 1 stop bit
Application
1.Street Light Monitoring
Monitor current across multiple lighting branches to detect faults and optimize energy usage.
2.Production Automation & Inspection
Simultaneously measure 6 load currents on production lines for go/no-go testing and equipment health checks.
3.LED Aging Test / Burn-in Racks
Track current draw of LED arrays during burn-in cycles to identify premature degradation.
4.PLC & SCADA Data Acquisition Systems
Building Automation Systems (BAS)
FAQ
Q1: How does the feed-through (perforated) design benefit my installation?
A: The feed-through structure with 6mm apertures allows current wires to pass directly through the module. This design eliminates the need for external current transformers (CTs) for lower current ranges, saving panel space, reducing wiring points, and lowering hardware costs.
Q2: Can I adjust the slave address and baud rate via hardware DIP switches?
A: Yes. The ZH-40062A supports dual configuration modes. You can set the address (0–63) and baud rate (up to 115200 bps) via the internal 8-bit DIP switch or configure them using standard Modbus RTU write commands via software.
Q3: Is this current acquisition module compatible with standard PLCs and HMIs?
A: Absolutely. It uses standard Modbus RTU protocol over RS485, making it compatible with major industrial PLCs (Siemens, Schneider, Omron, Delta), HMIs, SCADA platforms, and IoT edge gateways.
Q4: How do the diagnostic LED indicators help in troubleshooting?
A: The module features a RUN LED (red) indicating sampling operation and status, as well as RX (green) and TX (red) LEDs for RS485 communication activity. These LEDs allow field technicians to quickly identify wiring errors, baud rate mismatches, or command faults on-site.
Q5: Does this module support frequency measurement?
A: Yes, in addition to collecting True RMS current across 6 channels, the module includes a dedicated channel for grid/load frequency measurement (30Hz–1kHz, measurable up to 2kHz).
Why Choose Us
1.High-Precision Calibration
Every unit undergoes strict multi-point factory calibration using high-precision standard signal sources to ensure accurate 0.2% FS measurement.
2.Industrial-Grade Reliability
Designed with 3-way galvanic isolation (Power/Input/Communication) and integrated 2KV surge protection to withstand harsh electrical noise and interference.
3.Flexible OEM/ODM Customization
We offer tailored current input ranges, custom power supply requirements, and private label/branding options for system integrators and distributors.
4.Direct Factory Technical Support
Gain direct access to our engineering team for integration assistance, Modbus register troubleshooting, and technical documentation support.
