6 Channel Single Phase Power Monitoring Controller with RS485 Modbus RTU Ethernet Modbus TCP
Product No.: ZH-40068
Channels:6 Current Channels + 1 Voltage Input
Communication:RS485 Modbus RTU
Voltage Range:100V/250V/300V/400V
Current Range:100mA/500mA/1A/5A
6 Channel Single Phase Power Monitoring Controller with RS485 Modbus RTU Ethernet Modbus TCP
Product Overview
This product is a real-time measurement and acquisition module designed for 6-channel single-phase current, power, and electrical parameters, featuring programmable relay threshold alarm outputs. It utilizes high-precision sensors for signal isolation and sensing, and employs dedicated high-precision true RMS measurement chips to accurately measure true RMS parameters such as current, voltage, and power across various waveforms. Users can set custom threshold alarm parameters for unguided automatic alarm output. It supports RS485 and Ethernet communication interfaces.
Model Selection
1.ZH-40068-14N2/#V*#A: 6-Channel Single-Phase Power Type, RS485 Interface
2.ZH-40068-34N2/#V*#A: 6-Channel Single-Phase Power Type, Ethernet Interface
3.ZH-40076-14N2/#A: 7-Channel Single-Phase Current Type, RS485 Interface
Note: 220V power supply optional.
Key Features
1.6-Channel Single-Phase & 7-Relay Integration:
Monitors 6 single-phase AC loads using only 1 main line voltage and 6 load currents, backed by 7 independent relay outputs for localized automated control.
2.Advanced Alarm Modes:
Features 4 flexible alarm modes (Undervoltage, Overvoltage, Upper/Lower Limit, Zone Alarm) with custom hysteresis settings and manual relay override commands.
3.True RMS Measurement & High Precision:
Industrial-grade 0.2% accuracy for voltage and current parameters using dedicated true RMS measurement chips.
4.Flexible Dual Communication:
Supports standard RS485 (Modbus-RTU) and Ethernet (Modbus-TCP) protocols with robust >2500V DC galvanic isolation.
Technical Specification
+24V DC (9V–30V) or 220V AC optional.
Power consumption: <3W
7 relay normally open contact outputs,4 programmable alarm modes
(Undervoltage / Overvoltage / Upper & Lower Limit / Zone Alarm),
manual command relay control supported,alarm hysteresis adjustable from 0.2% to 6% of range (factory default 1%)
Applications
Parameter
Specification
Accuracy Class
Voltage, Current: 0.2%
Current Ranges
100mA, 500mA, 1A, 5AAC (Default), etc. (External small precision sensors optional)
Voltage Ranges
100V, 250V, 300V (Default), 400V
Operating Temperature
-40°C to +70°C | Data Update Rate: 250mS
Isolation Withstand Voltage
>2500V DC,Contact Capacity: 5A/250V AC
Auxiliary Power Supply
Output Interface & Protocol
RS485 (Modbus-RTU) or Ethernet (Modbus-TCP,Ethernet outputs also include simultaneous RS485 output)
Data Output
Total voltage, frequency, and per-phase current, active power, reactive power, power factor, energy, etc.
Communication Baud Rate
4800, 9600, 19200, 38400, 57600, 115200 bps
Alarm Functions & Relay Outputs
Dimensions & Weight
145 × 90 × 40 mm
1.Industrial Energy Management
Monitor machine power consumption and optimize energy efficiency.
2.Data Centers
Track server rack and branch circuit energy usage.
3.Manufacturing Automation
Detect abnormal power consumption and equipment failures.
4.Building Energy Monitoring
Analyze HVAC, lighting and distribution panel loads.
5.Renewable Energy Systems
Monitor inverter outputs, power quality and harmonic performance.
FAQ
1.What is a 6-channel power monitoring controller?
6-channel power monitoring controller measures voltage, current, power and energy consumption across six independent electrical loads simultaneously.
2.Does the ZH-40068 support Modbus TCP?
Yes. The Ethernet version supports Modbus TCP and Modbus RTU communications.
3.Can it monitor harmonics?
Yes. The controller supports THD measurement and 2nd to 31st harmonic analysis.
4.What communication protocols are supported?
RS485 Modbus RTU and Ethernet Modbus TCP.
5.Can relay outputs be configured for alarms?
Yes. Seven relay outputs can be configured for upper limit, lower limit, window and range alarms.
6.Is it suitable for energy management systems?
Yes. It is widely used in industrial EMS, BMS and power monitoring platforms.
