Electrical requirements, Phase converter connection – Woodstock W1737 User Manual
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W1737/W1738 Owner's Manual (Mfg. 10/09+)
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ELECTRICAL REQUIREMENTS
220V/440V Operation
The
SHOP FOX
®
Model W1737 has a 10 HP, 220V
single-phase sanding motor, a 1 HP, 220V feed motor,
and a
1
⁄
3
HP table lift motor; the Model W1738 has 15
HP, 220V/440V three-phase sanding motor, a 1 HP,
220V/440V feed motor, and a
1
⁄
4
HP table lift motor.
Note: If you do not have three-phase power available to
supply the Model W1738, you will have to install a phase
converter at the power supply
.
With either machine, you must hard-wire it to your
power panel and install an electrical box with a locking
shut-off lever.
Keep in mind that a circuit being used
by other machines or tools at the same time will add to
the total load being applied. Add up the load ratings of
all machines on the circuit. If this number exceeds the
rating of the circuit breaker or wiring, use a different
circuit.
—For the
Model
W1737 220V single-phase operation,
use a 50 amp circuit that has wiring rated to handle
this amperage draw.
—For the
Model
W1738 220V three-phase operation,
use a 40 amp circuit that has wiring rated to ha
ndle
this amperage draw.
—For the
Model W1738 440V
three-phase
operation,
use a 20 amp circuit that has wiring rated to handle
this amperage draw.
Phase Converter
Connection
If you do not have three-phase power available to the
W1738 sander, you will have to install a phase converter.
When using a phase converter, the power from the manu-
factured power leg (sometimes called the wild wire) can
fluctuate. Connect the manufactured power leg to the
T
terminal to prevent damage to the transformer. The wire
from the
T terminal can handle some fluctuation because
it goes directly to the motor. The power going to the
R and
S terminals goes to the transformer and must not fluctuate
to prevent damage.
TURN OFF and LOCK your
master power switch so
no power is available
to the sander before
connecting electrical
wires! If you ignore
this warning serious
electrical shock may
occur causing injury or
death!
OFF
DO NOT attempt to work on your shop
electrical system if you are unsure
about electrical codes and wiring!
Seek assistance from a qualified elec-
trician. Ignoring this warning can cause
electrocution!
This machine must be
grounded! If you have
any questions about
correct
electrical
installation, contact a
qualified electrician for
assistance to make sure
all connections are safe
and adhere to your local
electrical codes.