RS7580V-601 Rotary-Screw Air Compressor
10
P/N 5900090 — Rev. A — Sept. 2019
Important Electrical Information
⚠
WARNING
Electrical installation, service, and all electrical connections
must
be done by a
qualified, licensed Electrician who is familiar with all applicable electrical codes.
General
. The motor rating, as shown on the motor nameplate, and power supply must have
compatible voltage, phase, and hertz characteristics.
Make sure to have your Electrician
check all wiring connections when they are connecting the Compressor to power;
sometimes wiring becomes loose during transportation
.
Wire Size
. The electrical wiring between the power supply and electric motor varies according to
motor horsepower and other factors. Install adequately sized power leads to protect against excessive
voltage drop during pressure loaded start-up. Refer to the applicable electric codes in your area for
information on selecting the proper wire size and securing electrical connections. If you connect
additional electrical equipment to the same circuit, consider the total electrical load when selecting the
proper wire size.
Do not use undersize wire
.
Minimum Wire Size
. (
Use 75°C copper wire
). Make sure voltage is correct with the motor wiring.
Refer to the motor label for the running HP rating. This will determine the wire size needed.
Recommended wire sizes may be larger than the minimum set up by local ordinances. If so, the larger
wire size should be used to prevent excessive line voltage drop.
The additional wire cost is very small compared with the cost of repairing or replacing a motor
electrically “starved” by the use of supply wires that are too small. Also, if a lead wire longer than 10
feet is needed, consult a local Electrician for alternative wiring options.
Minimum Wire Size and Branch-Circuit, Short-Circuit, and Ground-Fault Protection Devices
Model
HP Phase
Voltage
Full
Load
Ampere
Inverse Time
Breaker Maximum
Allowable Size (A)
Dual Element
Fuse Maximum
Allowable Size (A)
Min. Wire
Size (copper
wire at 75°C)
TS580V-601 5
1
208-230 V
22.5-20
70
50
8 AWG
VMX7580V-
601
7.5
1
208-230 V
32.8-30
100
70
6 AWG
VMX7580V-
603
7.5
3
208-230 V
24.2-22
60
40
10 AWG
VMX10120V-
603
10
3
208-230 V
28-25.3
70
50
8 AWG
RS7580V-
601
7.5
1
208-230 V
32.8-30
100
70
6 AWG
Note 1
: Table provides branch-circuit, short-circuit, and ground fault protection device sizes and
required copper wire size at 75°C and up to 10 feet long. For longer distances, proper
(larger) wire size must be determined and installed by local, licensed Electrician to prevent
excessive voltage drop. Refer to motor label for motor HP, voltage, and phase to determine
minimum wire size;
do not use undersized wire
.
Note 2
: Smaller inverse time-trip breakers and dual element fuses may be used when recommended
by a licensed Electrician. However, using an improper (too small) breaker may cause
nuisance breaker tripping, which interferes with normal operation of the Compressor and
could cause damage to the Compressor’s electric motor and other electrical components.
Summary of Contents for RS7580V-601
Page 37: ...RS7580V 601 Rotary Screw Air Compressor 37 P N 5900090 Rev A Sept 2019 Wiring Diagram...
Page 38: ...RS7580V 601 Rotary Screw Air Compressor 38 P N 5900090 Rev A Sept 2019 Labels...
Page 39: ...RS7580V 601 Rotary Screw Air Compressor 39 P N 5900090 Rev A Sept 2019...
Page 40: ...RS7580V 601 Rotary Screw Air Compressor 40 P N 5900090 Rev A Sept 2019...
Page 43: ...RS7580V 601 Rotary Screw Air Compressor 43 P N 5900090 Rev A Sept 2019 Maintenance Log...