SEM-3 - RS485 Modbus Electricity Meter - Three Phase

£118.00

(£141.60 Inc. VAT)

6 in stock, immediate despatch

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The SEM-3 is a three phase Electricity Meter communicating over RS485 with the Modbus RTU protocol. The SEM-3 can measure current from 80A to 250A with the appropriate additional current sensor and can provide up to 12 power related parameters such as Active and Reactive power, Current, Power factor, frequency etc.

Current Transducers available separately - see "Related Products" section.

Input voltage: 110 - 264 Vac
Frequency: 47 - 63 Hz
Measured Parameters;
- Active power
- Reactive power
- Apparent power
- Power factor
- Cos φ
- Frequency
- Active energy
- Inductive reactive energy
- Capacitive reactive energy
- Maximum demand
- Apparent energy
RS-485 three wires
Modbus RTU protocol
Baud rate 9600 / 19200 / 38400 / 57600 / 115200 bps configurable
Data bits 8
Parity Without parity / Even configurable
Stop bits 1 / 2 configurable
Security CAT III 300 V under EN 61010
Protection class Class II
External current transformers Series TRC and TRA (In / 0,250 A)
Unit dimensions (Width x Height x Length): 18 x 70 x 109 mm
DIN rail mount
Temperature range -10 to +60ºC
Humidity range 5 to95%