Technical data

Electrical connections DBW 2010 / 2016
50
Fig. 16: System circuit for DBW 2010 / 2016 with control unit 1553 and timer
Cable cross-sections
Vehicle’s own cable
< 7.5 m
7.5 m–15 m
0.75 mm² 1.0 mm²
0.75 mm² 1.0 mm²
1.0 mm² 1.5 mm²
1.5 mm² 2.5 mm²
2.5 mm² 4.0 mm²
4.0 mm² 6.0 mm²
Item Designation Comment A B C D
9 Plug connection 1-pin 
F2 Fuse 8 A Blade-type fuse DIN 72581 
F3 Fuse 8 A Blade-type fuse DIN 72581 
H1 Light-emitting diode,
green
Indicator (in item P)
H2 Light-emitting diode,
yellow
Ready indicator (in item P) 
H3 Lights Symbol light (in item P)
K9 Relay Only necessary if battery switch
in negative
K10 Relay
P Timer (digital) For programmed operation 
S2 Switch Battery switch 
S3 Switch
on water tap
Contact open when water tap
closed

S4 Switch for on/off,
circulating pump separate

X4 Plug connector,
8-pin
for item P
Key:
A Fitted in heater
B Parts supplied loose
C Only if required
D In vehicle
 Set assignment
 Possible depending on scope of supply or version
1Timer P
with positive at connection 9 = Continuous operation with immediate heating
without positive at connection 9 = Heating duration 1 hour
2 to vehicle terminal 75, if present – otherwise terminal 15
3 Motor vehicle lighting (terminal 58)
NOTE
Sample application in conjunction with
circuit diagram Figures 11 – 13
Cable colours
bl
br
ge
gn
gr
or
rt
sw
vi
ws
blue
brown
yellow
green
grey
orange
red
black
violet
white
1303560C_DBW 2010 EA_degbfr.book Page 50 Tuesday, March 5, 2013 9:05 AM