13
Bandsaw
N3700 e-classic / N3800 / N4400
4.3 Operation and storage conditions
4.4 Electrical connection
The following electrical requirements must be fulfilled:
*) S6 = operation under load and intermittent service; 40% = relative operating factor
• Earth the machine using an electrical conductor.
• The voltage regulation in the electricity network must
not exceed ± 10% of the rated voltage.
• The current supply has to be protected against da-
mages e.g. armoured conduit.
• Connected vacuum hoses have to be earthed to
avoid electrostatic charges.
The electrical connection may only be carried out by
a competent and qualified person with the appropri-
ate training.
Ensure that the mains supply is correct for the machine
and use connecting cables with a cross-section appropri-
ate to the power consumption of the drive motor.
The minimum conductor cable size is 2,5 mm for a
400V supply. If the mains voltage is 230V or has a
rated current above 15 A, it is necessary to use higher
capacity cabling.
Connect the 3 phases with the R-S-T clamps (L1-L2-
L3) and the yellow-green electrical conductor with the
earthing clamp (Pe).
When the machine is first switched on, check the rotati-
onal direction and if incorrect, exchange two phases in
the connection box.
The rotational direction of one phase motors has been
set correctly by the manufacturer.
After connection, check that the connection box and
cable gland have been screwed tightly.
The dust extractor has to be connected to the machine in
such a way as to be operating automatically when the
bandsaw is switched on.
This can be achieved for example by an induction
switch in the machine supply line.
Attention! All operations may only be executed by an authorised electrical technician!
Safeguarding: see the wiring diagram
Specifications
Operating/room temperature
+10 to +40 °C
Storage temperature
–10 to +50 °C
N3700/N3800
Wechselstrommotor
Drehstrommotor
Motor voltage
1x 230 V
3x 400 V
motor frequency
50/60 Hz
50/60 Hz
Motor power S6-40 %*)
1,5 kW
1,5 kW
System of protection
IP 55
IP 55
N4400
Wechselstrommotor
Drehstrommotor
Motor voltage
1x 230 V
3x 400 V
motor frequency
50/60 Hz
50/60 Hz
Motor power S6-40 %*)
2,5 kW
2,5 kW
System of protection
IP 55
IP 55
