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3 Technical data
Permissible operating conditions
Nominal voltage, nominal frequency:
The mains voltage and the mains frequency must comply with the nominal
voltage and nominal frequency indicated on the type plate.
Series NEA und NEG:
Voltage and frequency: see details on type plate.
Power supply with:
• fixed voltage and frequency or
• frequency converter
The operation of three-phase vibrators of the series NEG with frequency
converters allows rotary speeds > nominal frequency.
If the electric external vibrators are operated with a frequency converter,
compliance with the EMC directive has to be ensured.
In zone 22 the frequency converter may regulate the frequency between 20 Hz
and 50 Hz or 20 Hz and 60 Hz (please check max. frequency on type plate) at
a constant torque load (linear volt-hertz-curve).
Rotary speed ranges:
2-pole 3000 rpm 50 Hz / 3600 rpm 60 Hz
4-pole 1500 rpm 50 Hz / 1800 rpm 60 Hz
6-pole 1000 rpm 50 Hz / 1200 rpm 60 Hz
8-pole 750 rpm 50 Hz / 900 rpm 60 Hz
WICHTIG
Permissible ambient temperature:
-20 °C to 40 °C* or
-20 °C to 55 °C*
The maximum ambient temperature specified on the type plate must not
be exceeded.
These values are valid for operation with an ON-period of 100 %.
Cycled or frequency-controlled operation or synchronous operation is
subject to specific requirements. These must be clarified with
NetterVibration on a case-by-case basis.
These electric vibrators must not be used in environments with a highly
explosive gas atmosphere.
Thermal overload protection:
From housing size 170 upwards with thermistors type PTC 130 °C as
standard.
For smaller vibrators: available on request as initial equipment.
If the vibrator is operated in environments with potentially explosive dust
(zone 22), it is mandatory to connect the PTC-thermistor. This regulation
does not apply if the unit is not equipped with a PTC-thermistor.
Sound level:
Depending on type ≤ 70 dB(A)
The sound level is determined to a great extent by the surface upon
which the vibrator is mounted (e.g. sheet metal). The sound level will be
amplified by non-silenced sheet metal.
*) Higher temperatures are only possible after consultation with and written approval from the application techni-
cians of NetterVibration.
7
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