Dutypoint VT Booster Set, O & M Manual

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English (GB)
4
5. Electrical connection - single-phase motors
5.1 Mains switch
The motor must be connected to an external all-pole mains switch
with a contact separation of at least 3 mm in each pole according
to IEC 364.
5.2 Protection against electric shock - indirect contact
Protective earth conductors must always have a yellow/green
(PE) or yellow/green/blue (PEN) colour marking.
5.3 Additional protection
If the motor is connected to an electric installation where an earth
leakage circuit breaker is used as additional protection, this
circuit breaker must be marked with the following symbol:
The leakage current of the motor can be found in section
17.2 Leakage current
.
5.4 Motor protection
The motor requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking (IEC 34-11: TP 211).
5.5 Protection against mains voltage transients
The motor is protected against mains voltage transients in
accordance with EN 61800-3.
5.6 Supply voltage
• 1 x 230-240 V ± 10 %, 50/60 Hz, PE.
• 1 x 200-220 V ± 10 %, 50/60 Hz, PE.
The supply voltage and frequency are marked on the motor
nameplate. Please make sure that the motor is suitable for the
electricity supply on which it will be used.
The wires in the motor terminal box must be as short as possible.
Excepted from this is the protective earth conductor which must
be so long that it is the last one to be disconnected in case the
cable is inadvertently pulled out of the cable entry.
For maximum backup fuse, see section
17.1 Supply voltage .
Fig. 6 Example of a mains-connected motor with mains
switch, back-up fuses and additional protection
Fig. 7 Mains connection
5.7 Start/stop of motor
If a higher number of starts and stops is desired, the input for
external start/stop must be used when starting the motor.
When the motor is started via an external on/off switch, it will start
immediately.
Caution
The user or the installer is responsible for the
installation of the correct earthing and protection
according to valid national and local standards.
All operations must be carried out by a qualified
electrician.
Warning
All electric supply circuits must always be
interrupted before working in the motor terminal
box.
Warning
Never make any connections in the motor
terminal box unless the electricity supply has
been switched off for at least 5 minutes.
Warning
The motor must be earthed and protected against
indirect contact in accordance with national
regulations.
Note
When an earth leakage circuit breaker is
selected, the total leakage current of all the
electrical equipment in the installation must be
taken into account.
ELCB
MGE 71 and MGE 80
TM
0
2
0
792
0
101
MGE 71 and MGE 80
T
M
02
13
28
15
0
4
Warning
If the supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer's
service partner or similarly qualified persons in
order to avoid a hazard.
Caution
The number of starts and stops via the mains
voltage must not exceed 4 times per hour.
When the motor is switched on via the mains,
it will start after approx. 5 seconds.
N
PE
L
N
L
PE
ELCB
PE
L
N