Busbar tap-off unit
www.janitza.de
52
10. Product description
10.1 Product description and application
areas
The busbar tap-off unit (AKM tap-off unit with
measurement technology) is used for the analysis
of energy efficiency in busbar trunking systems of
the type BD2. The BD2 busbar trunking system is
used for power transmission and distribution with
communication capability in office buildings and
industrial plants.
This supplementary user manual for the busbar
tap-off unit assumes that a BD2 busbar system is
already installed. Variants for other busbar sys-
tems must be evaluated in each individual case.
The implementation depends on technical and
economic boundary conditions.
The busbar tap-off unit for the BD2 busbar trunk-
ing system offers maximum safety through tested
low-voltage switchgear combinations according to
IEC 60439-1 / -21.
The high short-circuit resistance and low fire load
due to the sheet steel housing increase safety for
people and buildings.
In contrast to conventional cable installation,
where electricity can only be tapped at fixed
points, the ready-dimensioned busbar tap-off units
can be used flexibly and varied on the busbar
trunking systems (BD2). The installation is carried
out without any intervention in the connected
consumer (e.g. machine) and the associated loss
of warranty.
The AKM busbar tap-off unit
·is a ready dimensioned system for the con-
nection and energy monitoring of an electrical
consumer (e.g. a machine).
·performs a detailed energy efficiency analysis at
the machine level.
·is a ready dimensioned system which monitors
electrical parameters, such as currents, voltages,
power, power quality, etc. via the built-in mea-
surement device and the associated network
analysis
·can monitor the enclosure temperature and indi-
rectly the entire busbar system.
Various options and design variants of the bus-
bar tap-off unit allow adaptation to the respective
measurement task. This includes, for example, an
extended RCM measurement and the recording of
additional consumption values via pulse inputs.
INFORMATION
Please note!
The size of the busbar tap-off unit depends on the
variants (see „Technical data“ on page 72)!
The feed of the 125 A version of the busbar tap-
off unit is equipped with a cover disconnector,
which disconnects the tap-off unit from the live
busbar system when the cover is opened. This
allows shockproof working on the installed tap-
off unit.
With all other versions of the busbar tap-off
unit, there is no disconnection when the cover
is opened! In this case, a finger-safe design
provides protection against contact.
