Data Sheet for Product

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Siemens HVAC central apartment unit with consumption data acquisition QAX903 CE1N2741en
Building Technologies 2016-01-30
Connection terminals
Q13 Q14
N L
CE- CE+
M
B
2707Z24
KNX
230 V
Q13, Q14 Universal, potential-free relay output
N Operating voltage, neutral conductor AC 230 V
L Operating voltage, phase AC 230 V
CE-, CE+ Connection of data bus KNX TP- and KNX TP+
M Ground for universal input
B Universal input
Connection diagram
N1
L
N
Q
13
B M
AC 230 V
Q14
2 707Z05
2)
1)
N
L
KNX
CE-
CE+
N1 Central apartment unit QAX903
1) Universal input, for temperature measurement/digital input
2) Universal, potential-free relay output, for mains or low voltage
L Phase AC 230 V
N Neutral conductor AC 230 V
CE- / CE+ Connection of wire-bound bus (KNX TP- and KNX TP+)