Recommended External Meters

Created by Jorge Ruiz Padilla, Modified on Wed, 25 Sep at 12:58 PM by Jorge Ruiz Padilla

Please, refer to the following table when you are planning on using an External meter as the ones named below are the ones recommended by our team.

External meter	EASTRON SDM 120CT	EASTRON SDM 630 MCT V1
Max. Direct Current Measurement (A)	1-9999A (with CT)	1-9999A (with CT)
Direct Voltage Measurement Between Phases	120-230V	50-950V / 50-550V
Direct Measurement Between Phase and Neutral	120-230V	20-550V
Accuracy Class
Active Power	Class 1	Class 1
Reactive Power	Class 2	Class 2
Power Supply
Power Consumption	≤2W/10VA	≤2W/10VA
AC Power Supply Input Voltage	120-230V	85-275V / 120-380V
AC Power Supply Input Frequency	50/60Hz ±2%	50/60Hz ±2%
Generation Specifications
Dimensions (L/H/W) mm	62x119x17,5	72x119x17,5
Weight (kg)	0,1	0,29
Mounting Options	DIN Rail	DIN Rail
Degree of Protection	IP51	IP51
Display	LCD	LCD
Communication Interface	RS485	RS485
Max. Number of Devices to Connect	32	32
Regulated Working Temperature Range	(-25+55)ºC	(-25+55)ºC
CT Clamp	120A/40mA	150A/1A
Humidity	0-95%, Non-Condensing	0-95%, Non-Condensing

Take in consideration the following information:

- Eastron SDM 120 CT are for single phase inverters.

- Eastron SDM 630 MCT V1 are for both, single phase and three phase inverters.

- When using three single phase inverters on a three phase system you need to use the Eastron SDM 630 MCT V2 and connect each CT to the meter and the RJ45 to the master inverter as if it were a normal three phase inverter.