Installation guide
Mounting 
14 
Siemens Building Technologies   
Fire Safety & Security Products    09.2008
5.5  Connecting to the Power Supply 
IMPORTANT 
Please read the ‘Safety’ section on Page 
5 before connecting to the Power 
Supply. 
IMPORTANT 
All wiring must be installed to local and national standards. Ensure all SELV and 
signal wiring is kept away from live parts and is suitably protected from live parts 
by double insulation. 
CAUTION 
A readily accessible all-pole disconnect device with at least 3 mm contact 
separation shall be incorporated in the building installation wiring. As part of the 
building installation, protect the unit via a fuse or circuit breaker rated at 2 A for 
CHSL4010 110 – 230 V AC units and 5 A for CHSL4011 12 – 24 V AC units. 
  NOTE 
Use only cable suitable for the application and that meets the standards required by the installation. 
The conductor size for power cable(s) must be at least 0.75 mm
2
. The maximum recommended 
conductor size is 1.5 mm
2
. 
1.  Select the most suitable cable gland entry, (see section 3.1 for sizes) and 
remove the blanking plug supplied in the gland (A) (See 
Fig. 7). 
2.  Insert the mains cable and clamp it securely using one of the cable anchors 
(B). The central anchor point is for larger cables, the two outer ones are for 
smaller cables. Do not overtighten the screws as this may damage the cable. 
3.  Connect to the input supply on terminal board (C). 
Indicator Description 
L Live (Brown) 
N Neutral (Blue) 
E Earth (Green/Yellow) 
4.  Tighten all glands/conduits (A) securely to prevent water ingress. 
C
A
B
Fig. 7  Power cable entry 










