Huaqingjun 16-Channel RS485 Ethernet AC Current Voltage Transformer Detect Module Modbus RTU TCP Acquisition Module

Product Description

Special functions	Supports conventional AC current measurement; supports chopper-regulated AC current measurement
Communication interface	RS485 hardware isolation
Communication protocol	Standard RS485 Modbus RTU, Modbus TCP protocol
Communication baud rate	1200/2400/4800/960/19200/38400/57600/115200bps
Communication data format	7/8 data bits, 1/2 stop bits, parity, no parity can be set
AC input withstand voltage	470 VAC
Operating temperature	-37-75°℃
485 Communication	Multi-station number networking supports cascading: Supports 0 to 255 station numbers
Loop AC cement measurement	0-420 VAC
Installation method	Standard 35mm U-rail

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Company Introduction

Packing&Shipping

PACKING
Packaging Details: standard paper box

DELIVERY
Delivery Time: 3-5 days after payment for sample order
                        10-25 days after payment for big order

FAQ

Q1. What advantages do you have

A: We have independent products, good quality products, excellent technical support and service

Q2. How long is the quality guarantee

A: Product quality warranty is one year

Q3. What is the delivery time

A: Normally, it is about 3-5 days after payment. It needs to be negotiated to special requirement orders

Q4. How about the quality of your product

A: Before shipping out, we will check for quality, including check the function of products, the appearance, the packing, the necessary accessories and power adapter plug standard

Q5. How do you keeping our long-term business and good relationship

A:1. We keep good quality and competitive price to ensure our customers benefit

2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from

Qingjun Huaqingjun 16-Channel RS485 Ethernet AC Current Voltage Transformer Detect Module — a robust, easy-to-integrate acquisition solution designed for reliable measurement and monitoring of electrical systems. Built for industrial and commercial use, this module supports simultaneous measurement across 16 channels, offering accurate, continuous sensing of AC current and voltage signals through transformer inputs. Whether upgrading an existing control system, implementing a new energy monitoring solution, or integrating into building management and automation projects, this module delivers straightforward connectivity, accurate data acquisition, and strong compatibility with standard industrial protocols

Key features begin with broad channel capability: 16 independent input channels allow multiple circuits or points to be monitored with a single compact device. Each channel accepts signals from current transformers (CTs) and voltage transformers (VTs), making the module well suited for three-phase systems, multi-load panels, sub-metering, and distributed sensor networks. The module conditions transformer outputs and converts them into standardized digital data, removing the need for many separate sensors and reducing wiring complexity

Connectivity is flexible and modern. The module supports RS485 serial communication using the widely adopted Modbus RTU protocol for simple integration into legacy systems and PLCs. For networks that require IP-based communication, the module also offers Ethernet with Modbus TCP support, enabling remote monitoring, data logging, and integration with SCADA systems, HMIs, and building automation platforms. This dual-protocol approach ensures the device can fit into diverse infrastructures without requiring protocol converters or extra gateways

Accuracy and stability are central to the module’s performance. Qingjun implements quality analog-to-digital conversion and signal filtering to provide stable readings even in noisy electrical environments. The result is dependable measurements suitable for real-time display, long-term trend analysis, load balancing, and fault detection. Built-in calibration options allow installers to tune channel readings to match CT/VT ratios and compensate for installation variances, ensuring measured values reflect actual field conditions

Installation and setup are straightforward. The module is designed for DIN-rail mounting to fit standard electrical cabinets, control panels, and enclosures. Clear screw terminal labeling for CT/VT inputs and communication ports simplifies wiring. A compact footprint helps save space inside control rooms and panels. For commissioning, the module offers straightforward configuration via serial or Ethernet interfaces, and it supports common software tools and standard register maps for Modbus, speeding integration and reducing engineering time

Safety and reliability are emphasized in the physical design. The module includes isolation between input channels and communication interfaces, protecting control systems from transient spikes and electrical noise. Industrial-grade components and thermal design ensure long operational life even under continuous load. The module is designed to meet common industrial specifications for EMC and insulation, delivering dependable performance in demanding environments

Data management and system integration benefits are significant. With Modbus RTU and Modbus TCP compatibility, the Qingjun module connects easily to SCADA systems, energy management software, data loggers, and IoT gateways. This makes it simple to collect measurements for energy accounting, predictive maintenance, power quality monitoring, and operational analytics. System integrators and facility managers can aggregate data from multiple modules to create a unified view of energy consumption, load distribution, and equipment health, enabling better decision-making and cost savings

Use cases span multiple industries and applications. In utility and power distribution, the module can monitor feeders, transformers, and distribution panels to help utilities and operators detect overloads, unbalanced loads, and anomalous conditions. In manufacturing and industrial facilities, it supports energy efficiency projects by tracking machine-level consumption and identifying opportunities for load shifting or equipment upgrades. In commercial buildings, the module aids in tenant billing, energy monitoring, and BAS integration to optimize HVAC and lighting control. Renewable energy installations can use the device to monitor inverter outputs, battery systems, and grid interactions

Maintenance and diagnostics are made easier with helpful features. The module can provide channel-level status and diagnostics to quickly identify wiring issues, sensor faults, or abnormal readings. Clear error reporting through Modbus registers allows remote fault detection and timely intervention without requiring physical inspection. Regular firmware updates and support from Qingjun help ensure long-term support and compatibility with evolving systems

From an economic standpoint, consolidating 16 channels into one module reduces the need for multiple individual meters and communication gateways, lowering hardware and installation costs. The versatile communication options reduce integration time, and the ability to connect directly to higher-level systems eliminates intermediate converters and simplifies architecture. For projects requiring scalability, multiple modules can be networked together to cover hundreds of measurement points while maintaining a consistent interface

The Qingjun Huaqingjun 16-Channel RS485 Ethernet AC Current Voltage Transformer Detect Module comes with comprehensive documentation, including wiring diagrams, Modbus register maps, configuration guides, and troubleshooting tips. Technical support from Qingjun ensures integrators and technicians can deploy the module efficiently and resolve issues quickly. The product package typically includes the module unit, terminal connectors, and basic installation instructions to get systems running rapidly

The Qingjun Huaqingjun 16-Channel RS485 Ethernet AC Current Voltage Transformer Detect Module offers a compact, reliable, and flexible solution for multi-channel electrical measurement. With support for CT/VT inputs, Modbus RTU and Modbus TCP communication, robust construction, and easy integration into industrial and commercial systems, it addresses the needs of energy monitoring, power management, and control applications. For organizations seeking a dependable, scalable way to collect and transmit current and voltage data across many points, this Qingjun module provides a practical, cost-effective choice engineered for real-world operation