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For Machines Mfg. Since 8/09
Model SB1021/SB1022
PREPARATION
Power Connection
SB1021 110V (Prewired) Power
Source
Full Load Amp Draw ............................ 13.6 Amps
Permissible Voltage Range ....................99V–121V
Phase ................................................. Single-Phase
Frequency ...................................................... 60 Hz
Minimum Circuit Size ............................. 20 Amps
Included Plug ...................................... NEMA 5-15
Minimum Extension Cord Size ................14 AWG
Maximum Extension Cord Length ................ 50 ft.
SB1022 (220V 3-Phase) Power
Source
Full Load Amp Draw .............................. 3.6 Amps
Permissible Voltage Range ..................198V–242V
Phase ..........................................................3-Phase
Frequency ...................................................... 60 Hz
Minimum Circuit Size ............................. 15 Amps
Recommended Plug/Receptacle ......NEMA L15-15
Minimum Extension Cord Size ................16 AWG
Maximum Extension Cord Length ................ 50 ft.
SB1021 (220V) Power Source
Full Load Amp Draw .............................. 6.8 Amps
Permissible Voltage Range ..................198V–242V
Phase ................................................. Single-Phase
Frequency ...................................................... 60 Hz
Minimum Circuit Size ............................. 15 Amps
Recommended Plug/Receptacle .......... NEMA 6-15
Minimum Extension Cord Size ................14 AWG
Maximum Extension Cord Length ................ 50 ft.
Electrocution or fire
may occur if machine is
ungrounded, incorrectly
connected to power, or
connected to an undersized
circuit. Use a qualified
electrician to ensure a safe
power connection.
Once your machine is set up and assembled as
previously described in this manual, it is ready to
be connected to the power source.
Use the information in this section to determine
the power source requirements needed to operate
this machine. If your existing power source does
not meet the stated requirements, consult with a
qualified electrician about running a new circuit.
Note About Extension Cords: Using an
incorrectly sized extension cord may decrease the
life of electrical components on your machine.
Note About 3-Phase Power (SB1022 Only):
DO NOT use a static phase converter to create
3-phase power—it can quickly decrease the life
of electrical components on your machine. If you
must use a phase converter, only use a rotary
phase converter and connect the wild wire to the
correct power connection terminal, shown in the
wiring diagram on Page 47.
220V Conversion for SB1021
Wiring diagrams are provided on Pages 44 and
46 in this manual, showing the Model SB1021
wired for both 110V and 220V. Refer to these
diagrams when following this procedure.
To convert the Model SB1021 to operate on
220V:
1. DISCONNECT BANDSAW FROM POWER!
2. Rewire the motor for 220V, as shown in the
diagram on the inside of the motor junction
box. If there is not a diagram in the junction
box, use the motor wiring diagram in this
manual (see Page 46).
3. Locate the power transformer in the
electrical panel (see Page 48, Figure 50)
and remove the wire attached to the 110V
terminal and connect it to the 220V terminal.
4. Turn the dial on the overload relay (see
Page 48, Figure 50) from 14A for 110V to
7A for 220V.
5. Locate the welding transformer in the
control panel (see Page 48, Figure 49).
Remove the wire connected to the #2
terminal and move it to the #5 terminal;
remove the wire connected to the #4 terminal
and move it to the #7 terminal.
6. The machine is now wired for 220V.