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EQJW146F002 EN 149
Appendix
13.4 Technical data
Inputs 8 inputs for Pt 1000, PTC or Ni 1000 temperature sensors and 2 binary
inputs, terminal 11 as 0 to 10 V input (e.g. for external demand or out-
door temperature signal)
Outputs*
* Switch-on surge,
max. 16 A
2 x three-step signal: load max. 250 V AC, 2 A*, alternatively 2 x on/off
signal: load max. 250 V AC, 2 A*
3 x pump output: load max. 250 V AC, 2 A*, all outputs are relay outputs
with varistor suppression
Terminal 11 as 0 to 10 V output (e.g. for continuous closed loop control,
outdoor temperature, signal for external demand or pump speed control),
load >5 kΩ
Interfaces
M-bus for max. 3 M-bus units, protocol according to EN 1434-3
Optional interfaces 1 x Modbus RS-485 interface for two-wire bus using RS-485 communica-
tion module (Modbus RTU protocol, data format 8-N-1, RJ-45 connector
socket at the side)
Operating voltage 85 to 250 V, 48 to 62 Hz, max. 1.5 VA
Ambient temperature 0 to 40 °C (operation), –10 to 60 °C (storage and transport)
Degree of protection IP 40 according to IEC 529
Class of protection II according to VDE 0106
Degree of contamination 2 according to VDE 0110
Overvoltage category II according to VDE 0110
Humidity rating F according to VDE 40040
Noise immunity According to EN 61000-6-1
Noise emission According to EN 61000-6-3
Weight Approx. 0.5 kg
Compliance ·
* For systems with one control circuit, a maximum of four pumps are available.