Energy Meter & Current Transformer
Ct Type Three Phase Rs485 Modbus Multi-function Energy Meter Eastron SEM3-M
- Multi-parameter measurements
- Accuracy Class B active energy
- RS485 Modbus RTU
- 2 measurement modes
- Easy connection solution
- Compact design
- Support 1x3P or 3x1P load measurements
- Package includes 3pcs current transforments
- Phase sequence error warning
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Electrical Characteristics |
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Type of Measurement |
RMS including harmonics on three phase AC system (3P, 3P+N) |
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Measurement Accuracy |
Power |
l±1% EC 61557-12 Class 1 |
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Active Energy |
±1% |
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Reactive Energy |
±2% |
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Frequency |
±0.2% |
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Current |
±0.5% (4A~120A) ±1% (1A~4A) ±3% (0.06A~1A) |
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Voltage |
±0.5% |
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Power Factor |
±0.1 |
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Data Update Rate |
Active power: 50mS (RS485) |
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Input-Voltage
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Un |
3x230V(L-N)/400V(L-L) |
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Working Voltage Range |
90 to 300 Vac L-N 156 to 520 Vac L-L |
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Frequency Range |
50/60 Hz |
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RS485 Communications |
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Protocol |
MODBUS RTU |
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Communication Address |
1~247 |
| Transmission Mode |
Half duplex |
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Data Type |
Floating point |
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Transmission Distance |
1000m Maximum |
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Transmission Speed |
2400bps~115200bps |
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Parity |
None (default), Odd, Even |
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Stop Bits |
1 or 2 |
| Response Time |
＜50mS |
