Yueqing Lovadon Electric Co., Ltd.

Performance Characteristics

High precision measurement of single/three phase voltage,

three phase current, active power, reactive power, apparent

power, power factor, frequency

Provide the digital tube display, local data query

Programmable PT/CT ratio

Support for RS-485 communication, modbus-RTU protocol

Support for switch input, output, analog transmitting output

Auxiliary power supply: AC/DC 80-270V, AC 220V, AC 380V,

AC 100V

A variety of dimensions to meet the different requirements

of the electric distribution box

Technical Index Accuracy of Measurement

Accuracy of measurement

Voltage: level 0.5

Current :level 0.5

Active power: level 0.5

Reactive power: level 0.5

Power factor: level 0.5

Frequency:±0.02Hz

Signal Input

Connection Mode: signal phase two wires, three phase

four wires, three phase three wires

Rated Voltage: AC 57.7V, AC 100V, AC 220V, AC 380V

Rated Current: AC 1A, AC5A

Voltage:1.2 times(continued),

2 times/1second(instantaneous)

Current: 1.2 times(continued), 10 times/5second

Accessory Power Supply

Working Range: AC/DC 80-270V, AC 220V, AC 380V,

AC 100V

Power Consumption:<4VA

Function Module

Communication Interface:1 way RS-485 communication,

modbus-RTU protocol

Baud Rate:2400~9600bps,the default is 9600bps

Switch Input:4 ways

Switch Onput:3 ways(capacity:AC 250V/1A,DC 30V/5A)

Transmission Onput:3 ways(analog Onput:0/4~20mA or 0~5/10V) 

Work environment

Working Temperature:-10℃~+55℃

Storage Temperature：-25℃~+70℃

Relative Humidity:≤93℃, no corrosive gas

Altitude:≤2500m

Safety

Insulation Resistance:>100MΩ

Ac Electric: AC 2KV

Emc Performance

ESD Electrostatic Discharge: class 4

Electrical Fast Transient Burst: class 4

Surge(impact): class 4

Overall dimensions

Frame Size(mm):120*120,96*96,80*80,72*72

Hole Size(mm):111*111,92*92,767*6,68*68

Technical Parameters

LST96-UIF signal connection diagram

LST96-UIF  three phase UIF combined

LST96-UIF terminal figure 1

LST96-UIF terminal figure 2