Bosch DiBos Micro Installation Guide Page 8

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8 en | Safety Notes DiBos/DiBos Micro
F.01U.033.308 | V7 | 2009.09 Installation Guide Bosch Sicherheitssysteme GmbH
10. Power source
The device must only be operated with the power source indicated on the label. If you are
not sure whether you can operate the device with a specific power source, ask the dealer
from whom you bought the device or your electricity provider.
You will find more information on devices that can be operated with batteries in the
operating manual.
For devices that are operated using external power units, only recommended and tested
power units should be used.
For devices that are operated using power units with limited power, the power unit must
conform to the EN 60950 standard. Other replacement power units may damage the
device and lead to fire or electric shock.
For devices that are operated using 24 V AC, the normal input voltage is 24 V AC. The
input voltage to the device should not exceed 30 V AC. The wiring provided by the
customer for connecting the power source to the device (24 V AC) must conform to
electrical codes (Class 2 power stages). The power source (24 V AC) must not be
grounded at the connectors or the power supply connections on the device.
11. Coax grounding
If a cable system is connected to the device for outside use, ensure that the cable system
is grounded. Only for models available in the USA: Section 810 of the National Electrical
Code, ANSI/ NFPA No.70-1981, contains information on the correct grounding of the
mounting, coax grounding at a discharge device, the size of the ground conductors, the
location of the discharge device, connection to discharge electrodes and requirements
regarding the discharge electrodes.
12. Grounding or polarizing
This device may have a polarized AC plug (a plug with one pin broader than the other).
With this protection system, the plug can only be inserted into a socket in one way. If you
are unable to insert the plug fully into the socket, rotate it and try again. If you are still
unable to insert the plug, ask an electrician to replace the socket with a later model. Do
not attempt to bypass the polarized plug.
Alternatively, the device may have a 3-phase ground plug with a third (grounding) pin.
With this protection system, the plug can only be inserted into a grounded socket. If you
are unable to insert the plug into the socket, ask an electrician to replace the socket with
a later model. Do not attempt to bypass the grounded plug.
13. Lightning
For added protection of the device during a storm, or when it is not used for a lengthy
period of time, unplug the device from the mains and disconnect the cable system. This
prevents the device being damaged by lightning or a power surge.
14. The installation location should be quiet and have only limited access.
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