1. Carry out the electrical work according the local and
national electric codes and standards.
2. Connect the power supply for the main motor through
an earth leakage (ground) circuit breaker between the
main power and the Oilfree Scroll Air Compressor.
3. Wiring capacities are as follows.
1. Internal air compressor wiring has been
completed prior to shipment from the
factory.
2. Remove the front panel, open the door
to the power supply panel and connect
the main power supply cable to the
terminal block.
Installation(continued)
8
● Verify that the power supply for the facility corresponds with the power supply of the air
compressor.
Failure to adhere to this precaution may lead to starting failure, electric motor failure and/or damage to the air
compressor.
● The SRL air compressor should be wired per the local and national electric codes. Improper wiring
may lead to excessive voltage drops.
● Do not use a generator.
CAUTION
5 Wiring the Air Compressor
Connecting the Main Power
Model
Power
Wiring Capacity
Minimum Wire Thickness
(mm/AWG)
Minimum Ground Line Wire
Thickness
(mm/AWG)
Circuit Breaker
Capacity
(A)
Fuse
Capacity
(A)
SRL-7.5M6LL
SRL-7.5M6LH
208/230V
3 Phase
60 Hertz
3.9/AWG8
3.9/AWG8
75
75
SRL-11M6LL
SRL-11M6LH
4.9/AWG6
4.9/AWG6
100
100
SRL-16.5M6LL
SRL-16.5M6LH
6.8/AWG4
6.8/AWG4
100
100
SRL-7.5M6ML
SRL-7.5M6MH
460V
3 Phase
60 Hertz
3.9/AWG8
3.9/AWG8
40
40
SRL-11M6ML
SRL-11M6MH
4.9/AWG6
4.9/AWG6
50
50
SRL-16.5M6ML
SRL-16.5M6MH
6.8/AWG4
6.8/AWG4
50
50
Wiring the Air Compressor
Terminal
Block
Main Power
Supply Cable
T i g h t e n t h e n u t a f t e r
connecting the power
cable.
Note) 1. Use a UL489 listed circuit breaker or UL listed dual-element time delay branch circuit type fuses.
2. The Circuit Breaker and Fuse capacity depend on "UL standard".
Earth Leakage (Ground)
Circuit Breaker
Front panel