Power supply requirements, Availability, Full-load current rating – Southbend Turn-nado Gearhead w/DRO SB1046PF User Manual
Page 24: Circuit requirements
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For Machines Mfg. Since 3/11
Turn-Nado
®
Gearhead Lathes
P R E P A R A T I O N
Power Supply
Requirements
Availability
The full-load current rating is the amperage
a machine draws at 100% of the rated output
power. On machines with multiple motors, this is
the amperage drawn by the largest motor or sum
of all motors and electrical devices that might
operate at one time during normal operations.
The full-load current is not the maximum
amount of amps that the machine will draw. If
the machine is overloaded, it will draw additional
amps beyond the full-load rating.
If the machine is overloaded for a sufficient
length of time, damage, overheating, or fire may
result—especially if connected to an undersized
circuit. To reduce the risk of these hazards,
avoid overloading the machine during operation
and make sure it is connected to a power supply
circuit that meets the requirements in the
following section.
Full-Load Current Rating
SB1046PF Full-Load Rating ......... 19.23 Amps
SB1047PF Full-Load Rating ......... 19.23 Amps
SB1048PF Full-Load Rating ......... 19.23 Amps
SB1056F Full-Load Rating ............ 19.23 Amps
SB1057F Full-Load Rating ............ 19.23 Amps
SB1058F Full-Load Rating ............ 19.23 Amps
Circuit Requirements
For your own safety and protection of property,
consult an electrician if you are unsure about
wiring practices or applicable electrical codes.
Note: The circuit requirements in this manual
are for a dedicated circuit—where only one
machine will be running at a time. If this
machine will be connected to a shared circuit
where multiple machines will be running at
the same time, consult a qualified electrician to
ensure the circuit is properly sized.
A power supply circuit includes all electrical
equipment between the main breaker box or fuse
panel in your building and the incoming power
connections inside the machine. This circuit
must be safely sized to handle the full-load
current that may be drawn from the machine for
an extended period of time. (If this machine is
connected to a circuit protected by fuses, use a
time delay fuse marked D.)
This machine is prewired to operate on a 440V
power supply circuit that has a verified ground
and meets the following requirements:
Serious injury could occur if you connect
the machine to power before completing the
setup process. DO NOT connect to power until
instructed later in this manual.
Nominal Voltage ............................... 440V/480V
Cycle .............................................................60 Hz
Phase ....................................................... 3-Phase
Circuit Rating....................................... 30 Amps
Connection .. Hardwire with Locking Switch
Before installing the machine, consider the
availability and proximity of the required power
supply circuit. If an existing circuit does not meet
the requirements for this machine, a new circuit
must be installed.
To minimize the risk of electrocution, fire,
or equipment damage, installation work and
electrical wiring must be done by an electrician
or qualified service personnel in accordance with
all applicable codes.