Wago
789-621
1 / 2
- Part Number
- 789-621
- Tariff Code
- 85437090300
- UPC
- 4050821204565
- ETIM
- Group Code : EG000026
- Group Description : Sensors
- Class Description : Current value transformer
- Class Code : EC002475
- Version : 7
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Safety And Protection
- Protection type
- IP20
Communication
- Communication
- Modbus® RTU
- Interface
- RS-485
- Transmission channels
- Half duplex; 8-bit data; 1 stop bit
- Number of devices (max.)
- 32
- Bus length (max.)
- ≤ 1200 m
- Baud rate
- 19.2 kBd
- Parity
- Even
- Terminating resistor
- 150 Ω (can be activated via DIP switch 1)
Environmental Requirements
- Ambient temperature (operation)
- -20 … +70 °C
- Ambient temperature (storage)
- -40 … +85 °C
Connection Data
- Feedthrough for measurement conductor
- Ø 15 mm
- Connector
- RJ-45
Signaling And Communication
- Communication
- Modbus® RTU
- Baud rate
- 19.2 kBd
- Number of devices (max.)
- 32
- Terminating resistor
- 150 Ω (can be activated via DIP switch 1)
Supply
- Nominal supply voltage US
- DC 24 V
- Current consumption at nominal supply voltage
- ≤ 8 mA
Physical Data
- Width
- 35 mm / 1.378 inches
- Height
- 90 mm / 3.543 inches
- Depth from upper-edge of DIN-rail
- 55 mm / 2.165 inches
Measurement Error
- Transmission error (typ.)
- ≤ 0.5 % of upper-range value (0 … 80 A; at room temperature); ≤ 1 % of upper-range value (80 … 140 A; at room temperature)
- Temperature coefficient
- ≤ 0.05 %/K (-20 … 60 °C); ≤ 0.1 %/K (60 … 70 °C)
Material Data
- Fire load
- 0.283 MJ
- Weight
- 77.220 g
Input
- Input signal type
- Current
- Input signal (current)
- DC 0 … 140 A
- Resolution [bit]
- 15 bits
Standards And Specifications
- Conformity marking
- CE
- EMC immunity to interference
- EN 61000-6-2
- EMC emission of interference
- EN 61000-6-4
- Standards/specifications
- DIN EN 50178
Mechanical Data
- Mounting type
- DIN-35 rail
Specifications
- Product Group Code
- 0006
Commercial Data
- Packaging type
- Box
- Country of origin
- DE
- GTIN
- 4050821204565
- Customs tariff number
- 85437090300
Output Modbus
- Number of devices (max.)
- 32
- Connector
- RJ-45
- Bus length (max.)
- 1200 m
- Terminating resistor
- 150 Ω (can be activated via DIP switch 1)
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