Instructions

39
Start-up
5.2 Establish power supply
In order to ensure that the equipment is
electrically safe, the feeding source must be a
safety extra-low voltage.
Please note the insulation stripping length of the
conductor to be connected, indicated on the
device.
Permitted cable cross sections for connecting to the rain
sensor are:
rigid cable [mm
2
] flexible cable without ferrule [mm
2
]
0.2.-1.5 0.2.-1.5
To integrate the rain sensor into your Homematic IP
system, power has to be supplied via an appropriate
power supply unit. Therefore, proceed as follows:
• Loosen the four screws (E) on the back of the
housing using the Torx key supplied (see figure 3).
• Remove the housing cover.
• If necessary, remove the perforated cable
bushing to facilitate installation. Then, lead the
power supply cable through it.
• Unscrew the nut and the locknut of the supplied
cable gland (D) (see figure 4).
• Lead the supply cable through the nut (see figure
5).