Sargent EC400 Series System Instructions page 8

EC400 / EC450 series Power Control System
Voltage
Battery
cut off
Vehicle 10.9v
Leisure 9v
3.5 12 Volt DC Fuses
When replacing fuses always replace a fuse with the correct value. NEVER replace with a higher value /
rating as this could damage the wiring harness. If a replacement fuse 'blows' do not keep replacing the
fuse as you could damage the wiring harness. Please investigate the fault and contact your dealer.
The following table shows the fuse allocation for the 15 fuses fitted to the PSU. Please note that fuses
are dependant on PSU versions, so not all fuses may be present.
Fuse Rating
1 20 Amps
2 15 Amps
3 7.5 Amps
4 15 Amps
5 10 Amps
6 10 Amps
7 10 Amps
8 10 Amps
9 15 Amps
10 10 Amps
11 10 Amps
12 5 Amps
13 5 Amps
14 10 Amps
15 25 Amps
* Where Applicable / When
Fitted
Issue 1
Action after cut off
Battery selection is
changed from Vehicle
battery to Leisure
battery. If the leisure
battery is below 9v then
a further warning will
occur (see below).
Power is turned off
WARNING
Fuse Colour
Yellow * Motorhome Fridge 12V
Blue * Motorhome Towing
Brown * Motorhome Marker Lights
Blue * Motorhome Fridge D+
Red Extractor Fans / Heating Systems
Red 12V Sockets / TV Amp / ***Radio
Red Front Internal Lights
Red Water Pumps / Toilet
Blue * Electric Step
Red * Motorhome Tank Heaters
Red ** Auxiliary Supplies
Tan Electronics / Fridge / Alarm
Tan Oven Ignition / * Water Heater
Red Rear Internal Lights
Clear Charger (fitted internally to PSU)
** Motorhome Awning / Entry lights / Map
lights / Enroute Heating / Compressor
Fridge / Travel Skts / Bathroom lights
Page 8 of 13
Notes
This cut off level is designed to protect the vehicle
battery from over discharge. The 10.9v level
ensures there is sufficient power in the battery to run
the vehicle electronics and start the vehicle. This
cut off only applies to power drawn from the battery
by the leisure equipment; it will not protect the
battery if you leave vehicle circuits switched on,
such as the road lights.
This is an emergency cut off level to protect the
battery from severe damage. You should not rely on
this cut off level during normal operation, but
manage your power consumption to a discharge
level of 10v.
This cut off only applies to power drawn from the
battery by the leisure equipment that is controlled by
the control panel power switch; it will not protect the
battery from discharge by permanently connected
equipment.
Description
*** Caravan Radio Supply /
Motorhome Bathroom lights
th
12 June 2011