Jet Tools -20QT-3 用户手册
8
Models JWBS-18-3, -20QT-3, -20QT-5
Band saw models JWBS-18QT-3, JWBS-20QT-
3 and JWBS-20QT-5 are wired from the factory
for 230 volt operation only. Refer to
Specifications for phase and HP ratings.
3 and JWBS-20QT-5 are wired from the factory
for 230 volt operation only. Refer to
Specifications for phase and HP ratings.
A plug is not included. You may either install a
plug or “hard-wire” the band saw directly to a
control panel.
plug or “hard-wire” the band saw directly to a
control panel.
If connecting a plug, use a proper UL/CSA listed
2-pole, 3-wire grounding plug suitable for 230V
operation.
2-pole, 3-wire grounding plug suitable for 230V
operation.
If the band saw is to be hard-wired to a panel,
make sure a disconnect is available for the
operator. During hard-wiring of the band saw,
make sure the fuses have been removed or the
breakers have been tripped in the circuit to
which the band saw will be connected. Place a
warning placard on the fuse holder or circuit
breaker to prevent it being turned on while the
machine is being wired.
make sure a disconnect is available for the
operator. During hard-wiring of the band saw,
make sure the fuses have been removed or the
breakers have been tripped in the circuit to
which the band saw will be connected. Place a
warning placard on the fuse holder or circuit
breaker to prevent it being turned on while the
machine is being wired.
Circuit Information
The Band Saw should be connected to a
dedicated circuit with a circuit breaker or time
delay fuse with the appropriate amperage rating.
See Table 1 for recommended circuit sizes.
NOTE: These are recommendations only – all
local codes must be given priority.
dedicated circuit with a circuit breaker or time
delay fuse with the appropriate amperage rating.
See Table 1 for recommended circuit sizes.
NOTE: These are recommendations only – all
local codes must be given priority.
Extension cords
The use of an extension cord is not
recommended for this band saw. Try to position
your machine within reach of the power supply.
If an extension cord becomes necessary, make
sure the cord rating is suitable for the amperage
listed on the machine’s motor plate. An
undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
recommended for this band saw. Try to position
your machine within reach of the power supply.
If an extension cord becomes necessary, make
sure the cord rating is suitable for the amperage
listed on the machine’s motor plate. An
undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
Use the chart in Table 2 as a general guide in
choosing the correct size cord. If in doubt, use
the next heavier gauge. The smaller the gauge
number, the heavier the cord.
choosing the correct size cord. If in doubt, use
the next heavier gauge. The smaller the gauge
number, the heavier the cord.
Model Voltage
Recommended
Circuit*
JWBS-18QT
710750B
115V 40A
230V 20A
JWBS-18QT-3
710751B
230 30A
JWBS-20QT-3
708754B
230 30A
JWBS-20QT-5
708755B
230 50A
* Local codes take precedence over recom-
mendations.
mendations.
Table 1
Recommended Gauges (AWG) of Extension Cords
Amps
Extension Cord Length *
25
feet
50
feet
75
feet
100
feet
feet
150
feet
feet
200
feet
feet
<
5
16 16 16 14 12 12
5
to
8 16 16 14 12 10 NR
8
to
12 14 14 12 10 NR NR
12
to
15 12 12 10 10 NR NR
15 to 20
10
10
10
NR
NR
NR
21
to
30 10 NR NR NR NR NR
*based on limiting the line voltage drop to 5V at 150% of the
rated amperes.
NR: Not Recommended.
rated amperes.
NR: Not Recommended.
Table 2