Aufstellung.pm6.5 - USA
Page 3.8
Installation
BOGE Operating instructions for S 40-2...S 341 / SF 40-2...SF 220 series screw compressors
Electrical connection
DANGER: Voltage!
Ensure that work on the electrical equipment of the compressor is only carried
out by authorized electricians.
When connecting to the power supply, observe the valid regulations or the
local safety regulations.
Also observe the regulations of your local power supply company regarding
the load rating of your power supply.
Main switch
The customer is responsible to provide the following safety measures:
Compressor plants having a drive motor larger than 3 kW and current inten-
sities larger than 16 amperes must be equipped with a lockable main switch
and series fuses.
Please refer to the technical data for the design and fuse rating.
Rated voltage
The data of your mains (operating voltage, control voltage, type of current,
frequency, ...) must coincide with the data on the type plate on the switch
cabinet.
In the event of deviations, please contact the BOGE service or your supplier.
Connecting the leads
– Check to ensure that all terminals in the switch cabinet are firmly tightened.
If necessary, retighten the screw connections.
– Guide the lead cable through the PG screw connection.
– Connect the leads L1, L2, L3, N, Pe (PEN) firmly to the power supply
terminal.
A clockwise rotational field must be created.
– Tighten the electrical connections after the first operating hours.
Drive with frequency converter
According to operational conditions electrical drive systems with frequency
converter may have an earth leakage current above 10 mA.
Therefore the required precautions according to EN 60204-1:2006 and
EN 50178:1997 have to be applied as soon as the compressor is electrically
connected.
A permanently installed connection is required.
One or several of the following qualifications for the protective-conductor
system have to be fulfilled:
1. The protective conductor must have a minimum cross section of 10 mm
2
Cu
along its total length.
2. If the protective conductor has a minimum cross section of less than
10 m m
2
Cu, a second conductor with at least the same cross section has
to be provided up to the point from where the protective conductor has a
minimum cross section of more than 10 mm
2
.
3. Automatic interruption of the supply if the continuity of the protective con-
ductor is lost.
Please observe any additional national rules and regulations.
3.4 Electrical connection
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