Electrical Connections; Connection Rules - Siemens RMB795B Basic Documentation

Terminal connection
concept
Note
Connection procedure
with spring cage
terminals
Procedure
134 / 144
Siemens
Building Technologies
18

Electrical connections

18.1

Connection rules

The following illustration shows the terminal base of the RMB795B central control
unit including the connections:
• Extra low-voltage side at the top
• Mains voltage side at the bottom
Passive sensor /
signal source /
Konnex bus
contact sensing
CE- CE- M M M M
CE+ CE+ X1 X2 G1 X3 X4 G1 X5
Q24
Q12 Q14
Q11 Q11 Q23 Q23
2-speed fan
Each terminal (cage terminal) can accommodate only 1 solid wire or 1 stranded
wire.
1.
1. Strip wire (length 7...8 mm; with module connector RMZ780 8...9 mm).
2. Have wire and screwdriver in place (size 0 to 1; with module connector size 0).
3. Apply pressure with the screwdriver while inserting the wire
4. Remove screwdriver
Central control unit RMB795B
Electrical connections
Active sensor / Actuator
signal source DC 0...10 V
M M G1
X6 G1 Y1
Q34 Q54
Q33 Q33 Q53 Q53
Auxiliary terminals
in the control panel
N
Pump
2.
Power supply
AC 24 V
Y2 G0 G0 G0
G0 G G
Low-voltage side
Mains voltage side
L
PE
Power supply
PE
AC 230 V
N
3.
CE1P3122en
Double terminal
with internal
connection
18.01.2012