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AKKU
TEC
2412 VdS
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0812G01B02-160422.docx
3.2
Connection
Prior to connection, the DC voltage supply values must be checked for compliance with the values given on
the label. Connect according to the designations of the connection terminals (see terminal assignment, sec-
tion 3.7 Circuit diagram). Not used connection screws must be tightened.
NOTE
The external energy supply must be connected to a power circuit with its own, individually identi-
fied fuse (16A).
From that fusing, there must be only one more fusing up to the low voltage side supply point on
the electric mains (service entrance box).
The interruption of the power circuit to the external energy supply caused by switching off other
equipment must be excluded.
NOTE
In case of overload, the DC output current is composed of the maximum charge rectifier cur-rent
and the lead accumulator current. The DC output circuit must be fused externally in order to
avoid overload!
If the external power supply is installed as a part of a fire alarm system, the following regulations must be ob-
served in their currently valid version:
DIN 14675
“Fire detection and alarm systems - design and operation”
DIN VDE-0833, part 1 + 2
“Alarm systems for fire, intrusion and hold up“
DIN VDE-0800
“Construction and operation of telecommunication facilities including
information processing facilities”
DIN VDE-0165
“Construction of electrical systems in areas with risk of
explosion”
Guideline VdS-2095
“VdS Guidelines for automatic fire detection and alarm systems,
Planning and Installation
”
VDE 0100
“Installation of power circuits
with nominal voltages up to 1000 V”
EN 60204
“Safety of machinery - Electrical equipment of
machines
“
DANGER
The unit is prepared for degree of protection I (protective earthing). It is obligatory to connect to
operational earth. In case of non-observance, touchable parts may be live. Danger of fatal
electric shocks.