Datasheet
Operating Range
∗ The operating ranges are provided as guidelines including hystereses and are not guaranteed 
values (assuming approximately ±30% variations).
They may vary significantly with ambient environments.
Mounting the D-P3DW on a ø20 to ø25 port 
surface interferes with the fitting, so it needs to 
be mounted on a place other than the port 
surface.
For ø32 to ø100, if the corner of the fitting 
hexagon interferes with the D-P3DW Series, 
adjust the tightening of the fitting to eliminate 
the interference.
Also, in the case of interference with an elbow 
type fitting, direct the port of the fitting away 
from the D-P3DW Series.
If you have any other questions, please contact 
SMC. 
The Number of Surfaces and Grooves Where an Auto Switch Can Be Mounted (As Direct Mounting)
Minimum Auto Switch Mounting Stroke
A
C
BD
View from 
piston rod end
Piping port
The number of the surfaces and grooves where the auto switch can be mounted, by switch type, are shown in the table below.
20
25
32, 40, 50
63
80, 100
Auto switch model
No. of auto switch
mounted
2 pcs.
1 pc.
2 pcs.
1 pc.
2 pcs.
1 pc.
2 pcs.
1 pc.
2 pcs.
1 pc.
D-A9
10
10
10
10
10
10
10
 5
10
10
D-A9V
10
 5
10
 5
10
 5
10
 5
10
 5
D-M9
15
15
10
10
10
10
10
 5
15
 15 
D-M9W
D-M9A
15
15
15
15
15
15
15
15
15
15
D-M9V
5
5
5
5
5
5
5
5
5
5
D-M9WV
10
 5
10
 5
10
 5
10
 5
10
 5
D-M9AV
10
10
10
10
10
10
10
10
10
10
D-P3DW
15
15
15
15
10
10
10
10
10
10
(mm)
Bore size
(mm)
D-A9(V)
D-P3DW
D-M9(V)
D-M9W(V)
D-M9A(V)
Auto switch model
Bore size
(mm)
9
5
5
9 
4.5
5.5
9 
5 
5.5
9 
4 
5.5
9 
4.5
5.5
10.5
5 
 6.5
14
10
 9
20 25 32 40 50 63 80 100
10.5
 8 
 7 
Besides the models listed in “How to Order,” the following auto switches are applicable.
∗ Normally closed (NC = b contact), solid state auto switch (D-F9G/F9H type, and D-F8 type) are also available. For details, refer to Best Pneumatics 
No.2.
∗ For solid state auto switches, auto switches with a pre-wired connector are also available. Refer to Best Pneumatics No.2 for details.
Auto switch
model
D-A9, M9 D-P3DW
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
(Mounting
groove no.)
A
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
B
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(2)
(2)
(2)
C
(2)
(2)
(2)
(2)
D
(2)
(2)
(2)
(2)
A
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
B
(2)
(2)
(2)
(2)
҂
҂
҂
҂
҂
҂
C
(2)
(2)
(2)
(2)
D
(2)
(2)
(2)
(2)
 20
 25
 32
 40
 50
 63
 80
100
Bore size
(mm)
11
Series C55










