Compatibility and CT Requirements
| Type | Inverter type of application | CT requirement |
|---|---|---|
| S100 | SG2/2.5/3K-S, SG3/5/8K-D, SH5K-20, SH5K-30 | No, S100 itself owns CT. |
| DTSU666 | SG2/2.5/3K-S, SG3/5/8K-D, SH5K-20, SH5K-30, SG5/10KTL-MT, SG15/20KTL-M, SG30CX, SH5.0/8.0/10RT | No, this meter integrated CT inside. |
| T65 | SH5.0/8.0/10RT | No, this meter integrated CT inside. |
| DTSD1352-C/1(6)A | SG30CX*, SG50CX, SG110CX. * only applicable for the phase current>80A | Yes, Sungrow meters are compatible with CTs as below: IPD CTME-3 Series for Single Turn Primary a. 150A, CTME3150 b. 200A, CTME3200 c. 300A, CTME3300 d. 400A, CTME3400 e. 500A, CTME3500 SOCOMEC TCA 21/TCA14 SERIES a. 75A, TCA21-75/5 b. 80A, TCA21-80/5 c. 100A, TCA21-100/5 d. 125A, TCA21-125/5 e. 150A, TCA21-150/5 f. 200A, TCA21-200/5 SOCOMEC TCB 18 - 20 SERIES a. 100A, 192T3310 b. 150A, 192T3315 c. 200A, 192T3320 d. 250A, 192T3325 |
CT Selection Criteria
Above CTs are only recommended for customers. Customers also can select the CTs by themselves.
Primary current
The CT's primary current should be equal to or greater than the maximum expected AC current from the grid, per phase. The closer the expected AC current is to the chosen primary current value, the more precise the measurement will be.
Secondary current
5 A
Accuracy class
Class 0.5 or better (Class 0.2, etc.) is recommended. Class 0.5 is equivalent to a deviation of ± 0.5% of the secondary current at maximum power.
Sungrow Energy Meter Specifications
S100 Single-phase Smart Energy Meter
A compact, DIN-rail mountable single-phase energy meter with a display screen and connection terminals.
| Electrical Parameter | Value |
|---|---|
| Type designation | S100 |
| Nominal voltage | 240 Vac |
| Input voltage range | 180 Vac - 286 Vac |
| Power consumption | <2W (10 VA) |
| Max. operating current | 100 A |
| Grid frequency | 50 Hz |
| Measurement accuracy | Class 1 |
| Interface and communication | RS485 |
| Ingress protection rating | IP20 |
| Operating ambient temperature | -25 to 75 °C |
| Relative humidity | 0 - 95 % |
| Dimensions (W * H * D) | 181 * 117 * 65 mm |
| Weight | 0.2 kg |
| Installation | 35 mm DIN-rail |
T65 Three-phase Smart Energy Meter
A three-phase energy meter designed for DIN-rail mounting, featuring a display and multiple input/output terminals labeled L1, L2, L3, N.
| Electrical Parameter | Value |
|---|---|
| Type designation | T65 |
| Nominal voltage | 230 Vac / 400 Vac |
| Input voltage range | 180 Vac - 286 Vac |
| Power consumption | <2W (10 VA) |
| Max. operating current | 65 A |
| Grid frequency | 50 Hz |
| Measurement accuracy | Class 1 |
| Interface and communication | RS485 |
| Ingress protection rating | IP20 |
| Operating ambient temperature | -25 to 70 °C |
| Relative humidity | 0 - 95 % |
| Dimensions (W * H * D) | 85 * 72 * 72 mm |
| Weight | 0.4 kg |
| Installation | 35 mm DIN-rail |
DTSU666 Three-phase Smart Energy Meter
A three-phase smart meter with a digital display, multiple indicator LEDs, and connection terminals. It is designed for DIN-rail mounting.
| Electrical Parameter | Value |
|---|---|
| Type designation | DTSU666 |
| Nominal voltage | 230 Vac / 400 Vac |
| Input voltage range | 57.7 / 100 Vac - 265 / 460 Vac |
| Power consumption | < 1.5W (6 VA) |
| Max. operating current | 80 A |
| Grid frequency | 50/60 Hz |
| Measurement accuracy | Class 1 |
| Interface and communication | RS485 |
| Ingress protection rating | IP20 |
| Operating ambient temperature | -30 °C - +60 °C |
| Relative humidity | 75 % |
| Dimensions (W * H * D) | 72 * 65* 100 mm |
| Weight | 0.4 kg |
| Installation | 35 mm DIN-rail |
DTSD1352-C/1 (6)A Three-phase Smart Energy Meter
* DTSD1352-C/1 (6)A needs to be used with CT externally.
A three-phase smart energy meter with a digital display and connection terminals, requiring external CTs. It is designed for DIN-rail mounting.
| Electrical Parameter | Value |
|---|---|
| Type designation | DTSD1352-C/1 (6)A |
| Nominal voltage | 230 Vac / 400 Vac |
| Input voltage range | 57.7 / 100 Vac - 268 / 464 Vac |
| Power consumption | <2W (10 VA) |
| Max. operating current | 3×1 (6) A (via CTs) |
| Grid frequency | 50 Hz / 60 Hz |
| Measurement accuracy | Class 0.5 (Active) |
| Interface and communication | RS485 |
| Ingress protection rating | IP20 |
| Operating ambient temperature | -25 to 55 °C |
| Relative humidity | 0 - 95 % |
| Dimensions (W * H * D) | 126 * 91 * 74 mm |
| Weight | 0.35 kg |
| Installation | 35 mm DIN-rail |
