RS485 Modbus CT Type Din Rail Single Phase MID Energy Meter

Electrical Characteristics

Type of Measurement

RMS on single phase AC system (1P+N)

Measurement Accuracy

Power

1% of range maximum

Active Energy

IEC 62053-21 Class 1.0/ EN50470-1/3 Class B

Reactive Energy

IEC62053-23 Class 2, IEC 61557-12 Class 2

Frequency

0.2% of mid-frequency

Current

0.5% of range maximum

Voltage

0.5% of range maximum

Power Factor

1% of unity (0.01)

Input & Output 

Input

Current

CT Primary

1-9999A

CT Secondary

1A/5A

Min Current

0.25A

Starting Current

10mA

Voltage

Rated Voltage (Un)

230V

Operational Voltage

80%~120% of Un

Output

SDM120CTP

2 Pulse Output for imp/exp. energy

SDM120CTM

2 Pulse Output + RS485 Modbus

SDM120CTMB

2 Pulse Output + M-bus EN13757-3

Modbus Communications

Interface Standard and Protocol

RS485 and MODBUS RTU

Communication Address

1~247

Transmission Distance

1000m Maximum

Baud Rate

1200bps~9600bps

Parity

None (default), Odd, Even

Stop Bits

1 or 2

Response Time

<100 mS

M-Bus EN13757-3 Communications

Communication Address

1~250

Transmission Distance

1000m Maximum

Transmission Speed

300bps~9600bps

Parity

None (default), Odd, Even

Stop Bits

1 or 2

Response Time

<100 mS