CTEK D250S Dual User Manual

6
INSTALLATION OF UNIT
1. Attach the temperature sensor holder on a flat surface on one Service battery. Position it as
close as possible to a positive post.
2. Use the included drill template. Wiring is simplified if the units are installed according to the
drill template, but other setups are possible.
3. Install the unit(s) on a surface where it can be properly fixed and where the unit is not
exposed to fuels, oils or splashes of dirt.
4. Mount the unit with screws intended for the surface and attach it with one screw in each of the
four holes in the corners of the unit. See picture 1. Mount the unit with M4 or ST4.2 screws.
The required torque depends on the surface for mounting. Fig. 1 shows a CTEK D250S. The
same procedure is used for all devices.
5. Attach the cables and mount the cable screws with a torque of 7 Nm. Use tool – hand power
without tools is not enough.
INSTALLATION OF CABLES
Figure 1
Figure 2
2Nm
7Nm
Allen key
DRILL TEMPLATE
90,6mm
120mm
210,6mm
2
5
R
,4
168mm

CTEK D250S Dual Specifications

General

Charging Current	20 A
Operating Temperature	-20°C to +50°C
Protection Class	IP65
Battery Capacity	40–300 Ah
Battery Types	Lead-acid (Wet, MF, AGM, GEL)
Protection Features	Reverse polarity protection, over temperature protection
Input Voltage	11.5-23V, DC
Charging Stages	5-stage, Automatic