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MVSI-E
The MVSI-E series has been designed for use in industrial
processes in environments with a potentially explosive
atmosphere, due to the presence of explosive gas and dust,
in compliance with ATEX Directive (94/9/CE).
In particular, the MVSI-E series can be used in areas 1 and 2
(gas) and in areas 21 and 22 (dusts) according to the layout
and following features:
Technical features
Power supply Protection against mechanical impacts Terminal box
Three-phase voltage from 220V to 690V, IK 08 according to IEC 68, EN 50102. Large fixed electrical connections. Special
50Hz or 60Hz; suitable for use with an shaped terminals allow to fix the power
inverter from 20Hz to the base frequency Insulation class supply cable, protecting it from loose-
with constant torque load profile tipo Class F (155°C). ning.
PWM.
Tropicalization Electric motor
Polarity Standard on all vibrators, with vacuum Three-phase asynchronous type. Desig-
2, 4, 6 and 8 poles. encapsulation up to size AF 33 and 35, ned for maximum starting torques and
with “drop by drop” trickle system for torque curves specific to requirements of
Conformity with European Directives larger sizes. vibrating machines. Insulated windings
ATEX 94/9/EC; Low voltage 2006/95/EC. using vacuum encapsulating up to size 35;
Ambient temperature using the “drop by drop” trickle system
Reference Regulations From -20°C to +40°C, on request it is pos- with class H resin for larger sizes.
IEC/EN 60079-0, IEC/EN 60079-7, sible to have vibrators for max. ambient The rotor is die cast aluminium.
IEC/EN 60079-31, EN 60034-1. temperatures of +55°C.
Casing
Controls Vibrator thermal protection In high-tensile aluminium alloy up to size
The components that affect protection are Standard PTC rated thermistor heat detec- 60, in spheroidal cast iron for larger sizes.
100% accurately controlled and recorded. tors 130°C (DIN 44081-44082) from size 70, Patented shape that improves heat disper-
on request for smaller sizes. On request, sion and lowers normal working tempe-
Functioning thermistors with different temperatures rature at full load. An external earthing
Continual service (S1) at maximum decla- and anti-condensation heaters. screw is located on the casing as prescri-
red centrifugal force and electric power. bed by Regulation IEC/EN 60079-0.
Fixing of the vibrator
Centrifugal force In all positions and therefore without Bearing flange
Range extended up to 11160 Kgf. (109 KN), restriction. Constructed in cast iron (spheroidal or
adjustable in a continuous linear mode grey) or in aluminium with steel bearing
with variation of the position of the eccen- Lubrication seat. The geometry of the flange transmits
tric weights. All vibrators are lubricated in the factory the load to the casing uniformly.
and do not require further lubrication if
Mechanical protection used in normal operating conditions (“FOR N
IP 66 according to IEC 529, EN 60529. LIFE” lubrication). In heavy duty operating
conditions periodical re-lubrication may Bearings
be applied to size 35 and larger. Custom made with particular geometry,
especially designed for Italvibras, suitable
to support both high radial and axial
loads.
B
24
H
