Yueqing Lovadon Electric Co., Ltd.

Performance Characteristics

High precision measurement of three phase AC/DC current

Provide the digital tube display, local data query

Programmable 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

Current :level 0.5

Signal Input

Connection Mode: three phase four wires, three phase three wires

Rated Current: AC 1A, AC5A

Overload:1.2 times(continued), 10 times/5second(instantaneous)

Power Consumption:<0.4VA per phase

Impedance: <20mΩ

Frequency: 45~60Hz

Accessory Power Supply

Working Range: AC/DC 80-270V, AC 220V, AC380V, AC100V

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*92,76*76,68*68.

Technical Parameters

LST192 (ND194) LST96-3A signal connection diagram

LST192 (ND194) LST96-3A terminal diagram 1

LST192 (ND194) LST96-3A terminal diagram 1