Viair 400P-Automatic compressor is Viair's first Automatic shut-off function portable compressor. This 33% duty cycle unit is capable of pressures up to 150 PSI and can be operated for up to 40 minutes at a time before needing to be rested. The 400P-Automatic comes with a close-ended gas station-style air gun for added convenience.
Voltage: | 12-Volt |
Duty Cycle: | 33% @ 100 PSI |
Max Working Pressure: | 150 PSI |
Max Amp Draw: | 26 Amps |
Min. Ambient Temp: | -40 degrees F |
Max. Ambient Temp:: | 158 degrees F |
Compressor Dimensions: | 11.25" L x 4" W x 7" H |
Compressor Net Weight: | 8.5 lbs. |
Duty Cycle: 100 PSI @ 72F
|
Max. Run Time / Min. Rest Time
|
10% Duty Cycle | 3 Min. On / 27 Min. Off |
15% Duty Cycle | 6 Min. On / 34 Min. Off |
20% Duty Cycle | 8 Min. On / 32 Min. Off |
25% Duty Cycle | 10 Min. On / 30 Min. Off |
30% Duty Cycle | 13 Min. On / 30 Min. Off |
33% Duty Cycle | 15 Min. On / 30 Min. Off |
100% Duty Cycle | Continous Duty @ 100 PSI @ 72F |
This compressor has a duty cycle of 33%
Note: Duty cycle refers to the amount of time a compressor can be operated in given time period at 100 PSI, at a standard ambient temperature of 72 degrees F. Duty cycle is commonly expressed in percentage format. The higher the percentage the longer run time. For more "frequently asked questions" on compressors see Viair FAQ Page.
31" x 10.5" Tire
|
Fill Rate
|
0 to 30 PSI | 2 min 28 sec |
15 to 30 PSI | 1 min 25 sec |
33" X 12.5" Tire
|
Fill Rate
|
0 to 30 PSI | 4 min 00 sec |
15 to 30 PSI | 2 min 00 sec |
35" X 12.5" Tire
|
Fill Rate
|
0 to 30 PSI | 4 min 50 sec |
15 to 30 PSI | 2 min 20 sec |
PSI
|
CFM
|
A
|
0 | 2.54 | 16 |
10 | 2.26 | 18 |
20 | 2.12 | 21 |
30 | 1.94 | 22 |
40 | 1.84 | 23 |
50 | 1.70 | 24 |
60 | 1.62 | 25 |
70 | 1.55 | 25 |
80 | 1.48 | 26 |
90 | 1.41 | 26 |
100 | 1.27 | 26 |
110 | 1.20 | 26 |
120 | 1.09 | 26 |
130 | 0.95 | 25 |
140 | 0.85 | 25 |
150 | 0.71 | 25 |
PSI = Pounds per squre inch - A measure of air pressure generated by an air compressor. CFM = Cubic feet per minute - Volume of air produced by the air compressor at a given pressure or PSI. A = Amps - A measure of the amount of electrical current used.
Voltage: | 12-Volt |
Duty Cycle: | 33% @ 100 PSI |
Max Working Pressure: | 150 PSI |
Max Amp Draw: | 26 Amps |
Min. Ambient Temp: | -40 degrees F |
Max. Ambient Temp:: | 158 degrees F |
Compressor Dimensions: | 11.25" L x 4" W x 7" H |
Compressor Net Weight: | 8.5 lbs. |
Duty Cycle: 100 PSI @ 72F
|
Max. Run Time / Min. Rest Time
|
10% Duty Cycle | 3 Min. On / 27 Min. Off |
15% Duty Cycle | 6 Min. On / 34 Min. Off |
20% Duty Cycle | 8 Min. On / 32 Min. Off |
25% Duty Cycle | 10 Min. On / 30 Min. Off |
30% Duty Cycle | 13 Min. On / 30 Min. Off |
33% Duty Cycle | 15 Min. On / 30 Min. Off |
100% Duty Cycle | Continous Duty @ 100 PSI @ 72F |
This compressor has a duty cycle of 33%
Note: Duty cycle refers to the amount of time a compressor can be operated in given time period at 100 PSI, at a standard ambient temperature of 72 degrees F. Duty cycle is commonly expressed in percentage format. The higher the percentage the longer run time. For more "frequently asked questions" on compressors see Viair FAQ Page.
31" x 10.5" Tire
|
Fill Rate
|
0 to 30 PSI | 2 min 28 sec |
15 to 30 PSI | 1 min 25 sec |
33" X 12.5" Tire
|
Fill Rate
|
0 to 30 PSI | 4 min 00 sec |
15 to 30 PSI | 2 min 00 sec |
35" X 12.5" Tire
|
Fill Rate
|
0 to 30 PSI | 4 min 50 sec |
15 to 30 PSI | 2 min 20 sec |
PSI
|
CFM
|
A
|
0 | 2.54 | 16 |
10 | 2.26 | 18 |
20 | 2.12 | 21 |
30 | 1.94 | 22 |
40 | 1.84 | 23 |
50 | 1.70 | 24 |
60 | 1.62 | 25 |
70 | 1.55 | 25 |
80 | 1.48 | 26 |
90 | 1.41 | 26 |
100 | 1.27 | 26 |
110 | 1.20 | 26 |
120 | 1.09 | 26 |
130 | 0.95 | 25 |
140 | 0.85 | 25 |
150 | 0.71 | 25 |
PSI = Pounds per squre inch - A measure of air pressure generated by an air compressor. CFM = Cubic feet per minute - Volume of air produced by the air compressor at a given pressure or PSI. A = Amps - A measure of the amount of electrical current used.
Download Instructions: | 40045 Instructions |
Weight: | 13 lbs. |
Universal Fit Product: | May not fit all vehicles, please contact us if you have questions about fitment |