Datasheet
ø2.7
2
24.5
(22)
2.8
4.5
4
10
( ): dimensions for D-A96.
D-A90 without indicator light
Indicator light
Most sensitive 
position
Slotted set screw
M2.5 x 4 L
4
9.1
5.1
ø2.7
10
4.5
Most sensitive position
2
22
6
D-A90V without indicator light
Indicator light
Slotted set screw
M2.5 x 4 L
Grommet
Auto Switch Specifications
Auto switch model
Applicable load
Load voltage
Maximum load current
Contact protection circuit
Internal resistance
Standard
Auto switch model
Applicable load
Load voltage
Load current range and
Maximum load current
(3)
Contact protection circuit
Internal voltage drop
Indicator light
Standard
D-A90, D-A90V
IC circuit, Relay, PLC
24 V or less
50 mA
None
1 Ω or less (Including lead wire length of 3 m)
CE marking
48 V or less
40 mA
100 V or less
20 mA
D-A93, D-A93V
Relay, PLC 
24 VDC
5 to 40 mA
None
D-A93: 2.4 V or less (up to 20 mA)/3 V or less (up to 40 mA)
D-A93V: 2.7 V or less
Red LED illuminates when turned ON.
CE marking
100 VAC
5 to 20 mA
D-A96, D-A96V
IC circuit
4 to 8 VDC
20 mA
0.8 V or less
Note 1) Operating load is an induction load.
Note 2) Wiring to the load is 5 m or longer.
Note 3) Load voltage is 100 VAC.
Use the contact protection box in any of the 
above listed situations. The contact point life 
may decrease. (Refer to page 14 for contact 
protection box.)
Fix the auto switch with the existing screw 
installed on the auto switch body. 
The auto switch may be damaged if a screw 
other than the one supplied is used.
Precautions
Caution
Model
0.5
3
Lead wire length
(m)
D-A90
 6
30
D-A90V
 6
30
D-A93
 6
30
D-A93V
 6
30
D-A96
 8
41
D-A96V
 8
41
Weight
Auto Switch Internal Circuit
D-A90, A90V
D-A93, A93V
D-A96, A96V
Dimensions
D-A90/D-A93/D-A96
D-A90V/D-A93V/D-A96V
PLC: Programmable Logic Controller
Reed Auto Switch
Direct Mounting Style
D-A90(V)/D-A93(V)/D-A96(V)
• Lead wires 
D-A90(V)/D-A93(V)—Oilproof heavy-duty vinyl cord, ø2.7, 0.18 mm
2
 x 2 cores (Brown, Blue), 0.5 m
D-A96(V)—Oilproof heavy-duty vinyl cord, ø2.7, 0.15 mm
2
 x 3 cores (Brown, Black, Blue), 0.5 m
Note 1) Refer to page 13 for reed auto switch common specifications.
Note 2) Refer to page 13 for lead wire lengths.
Note 3) 
Under 5 mA, the strength of the indicator light is poor. In some cases, visibility of the indicator 
light will not be possible where the output signal is less than 2.5 mA. However, there is no 
problem in terms of contact output, when an output signal exceeds 1 mA or more. 
AC
DC
AC
DC
AC
DC
Reed switch
OUT(±)
Brown
앑
OUT ( ) 
Blue
±
Contact 
protection 
box
CD-P11
CD-P12
Blue
LED
Reed switch
Resistor
Zener diode
Brown
OUT (+)
Brown
앑
OUT (–)
Blue
Contact 
protection 
box
CD-P11
CD-P12
LED
Reed switch
Resistor
Reverse 
current 
prevention 
diode
OUT
Black
DC (+) 
Brown
DC (–)
Blue
Load
(+)
(
–)
DC 
power supply
D-A90, D-A90V (Without indicator light)
D-A93, D-A93V, D-A96, D-A96V (With indicator light)
For details about certified products 
conforming to international standards, 
visit us at www.smcworld.com.
Unit: g
Unit: mm
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