EC155 Power Control System
Issue 2
Page 1 of 11
June 2013
Important Version Identification
Please be aware that there are two revisions of the EC5x series control panels.
The older revision 1 panels have a green power LED and a black circuit board and are covered by the old
issue 1 instructions (see www.sargentltd.co.uk).
These issue 2 instructions only apply to the later revision 2 control panels which have a blue power LED
and a green circuit board.
1 Key Features
150W (~12A) combined Power Converter / Battery Charger - Converts the 230V mains supply into 12V
DC power to run the leisure equipment and charge the battery.
Low current switching reduces voltage drop in the circuit and improved circuit fusing provides better
protection for the harness and equipment.
Links to the EC5x series LED Control Panel to provide simple but intelligent control of the 12V
equipment and built in over discharge software protects the leisure and vehicle batteries.
2 System Overview
The following diagram shows the typical configuration of the EC155 system. The key component is
the EC155 power supply unit (PSU), which is the hub of the system and provides connectivity to the
ancillary components and the EC5x series control panel.
EC50 / 51 Control Panel
12v LEISURE
BATTERY
12v VEHICLE
BATTERY
12v
EQUIPMENT
230v
EQUIPMENT
230v
IN
SENSOR
INPUTS
M
ai
ns
C
o
nt
ro
l
E
q
ui
pm
e
nt
EC155 Power Supply Unit
150W
Charger /
Power Supply
Relay Module
EC51 Model Only
12v LEISURE
BATTERY
12v LEISURE
BATTERY
12v VEHICLE
BATTERY
12v VEHICLE
BATTERY
12v
EQUIPMENT
230v
EQUIPMENT
230v
IN
230v
IN
SENSOR
INPUTS
M
ai
ns
C
o
nt
ro
l
E
q
ui
pm
e
nt
EC155 Power Supply Unit
150W
Charger /
Power Supply
Relay Module
EC51 Model Only
