Terminal Connection Diagram - BADU BNR 300 Montage & Betriebsanleitung

D. Terminal connection diagram
Low voltage
S4 --
S4 --
max. 12 V
Low voltage max. 12 VAC/DC
Terminal: Connection for:
S1 (2x) Level switch
S2 (2x) Level switch 1/water detector
S3 (2x) Level switch 2/water detector
-- (2x) not used
S4 (2x) Level switch 3/water detector
Installation
S3
S3 S2 S2 S1 S1
NO
Mains voltage 230 VAC
Mains voltage 230 VAC 50-60 Hz
Terminal:
N
R1
N
L
NC
C
NO
The PE protective conductor must be con-
nected to the PE metal terminal block!
If the potential-free contact R3 is used a
bridge is to be provided between the two
PE metal terminal blocks!
Relay Mains
C NC L
Connection for:
Magnet valve (alarm signal) N
Magnet valve (alarm signal) L
Mains neutral conductor N
Mains phase conductor L
Normally closed R3
Magnet valve (alarm signal)
Normally open R3
N R1 N
11