CN300 Series Power Meter is a multi-functional instrument for electrical parameter monitoring. It accurately measures three-phase voltage, current, power, power factor, frequency and energy, with 0.5-class precision for voltage and current. Supporting 3-phase 3-wire / 3-phase 4-wire wiring, it offers optional RS485 communication (Modbus-RTU) and digital I/O. Featuring wide-range auxiliary power supply and reliable EMC performance, it operates stably at -10℃~+55℃. Widely used in power distribution cabinets and automation systems for power monitoring and data acquisition.
Sample Display
Technical Parameters
CN300 Series Power Meter www.renhemeter.com
Technical Parameters
Measurement Accuracy
◎ Voltage:0.5 Class
◎ Current:0.5 Class
◎ Active Power(Watt):1.0 Class
◎ Reactive Power(var):1.0 Class
◎ Power Factor: 1.0 Class
◎ Frequency: ±0 .2Hz
◎ Active Energy(kwh): 1.0 Class
◎ Reactive Energy(kvarh): 2.0 Class
Auxiliary Power Supply
◎ Working Range:AC220V or AC85V~265V/DC100V-300V
◎ Power Consumption:<4VA
Environment
◎ Working Temperature:-10℃+55℃
◎ Storgage Temperature:-25℃+70℃
◎ Relative Humidity:≤93%, place without corrosive gas
◎ Altitude:s2500m
Safety
◎ Insulation Resistance: >100MΩ
◎ AC Withstand Voltage:AC 2KV
Signal Input
◎ Wiring Mode:3 Phase 4 Wires/3 Phase 3 Wires
◎ Related Current:AC1A/AC5A
◎ Related Voltage:AC57 .7V,AC100V,AC220V,AC380V
◎ Overload Capability
Voltage:1.2 times(continuous),2 times/1 second(instantaneous)
Current:1.2 times(continuous),10 times/5 seconds(instantaneous)
◎ Power Consumption
Voltage:<1VA/Phase Current:<0 .4VA/Phase
◎ Impedance
Voltage: <400kΩ Current: <20mΩ
◎ Frequency: 45-65Hz
Optional Extended Function
◎ Communication Port:1 Loop Rs485, Modbus-RTU Protocol
Baud Rate: 1200~38400bps,the factory default is 9600bps
◎ Switching Input: Passive dry contact
◎ Switching Output Capacity:AC250V/5A, DC30V/5A
EMC Performance
◎ Electrostatic Discharge:4 Class
◎ Electrical F ast Transient/Burst:4 Class
◎ Surge:4 Class