6
3
29
300
ø4.8
ø14
42.5
Indicator light
(29)
4.7
Most sensitive
position
(15.2)
13.7
4
6.2
4
4.7
(29)
Most sensitive
position
(15.2)
13.7
10.5
Most sensitive
position
Heat shrink tube
Note)
3.2
11
1
ø2.8 mounting hole
Magnetic Field Resistant 2-Color Display
Solid State Auto Switch
D-P3DWSC/D-P3DWSE
(Electrical entry: Pre-wired connector)
Auto Switch Specifications
It is possible to use in an en-
vironment which generates a
magnetic field disturbance
(AC magnetic field).
The proper operating range
can be determined by the col-
or of the light.
(Red
→
Green
←
Red)
Precautions
Caution
For single-phase AC welding machines
If it is used for current inverter welders (in-
cluding rectifying type) and condenser type
welders, the magnetic field resistance is
reduced. Please contact SMC regarding
the performance.
Proper operating
range
Operating
range
OFF
ON
Red
Indica-
tion
Green
Red
D-P3DWSC
D-P3DWSE
Indicator light/Display method
Auto Switch Internal Circuit
PLC: Programmable Logic Controller
Auto switch model
Applicable load
Load voltage
Load current
Internal voltage drop
Leakage current
Operating time
Indicator light
Standards
24 VDC relay, PLC
24 VDC (20 to 28 VDC)
6 to 40 mA
5 V or less
1 mA or less at 24 VDC
40 ms or less
CE marking, UL (CSA), RoHS
Operating range······Red LED illuminates.
Proper operating range······Green LED illuminates.
D-P3DWSC/E
(With indicator light)
D-P3DWSC
D-P3DWSE
• Lead wire — Oilproof heavy-duty vinyl cable, ø4.8, 0.5 mm
2
, 2 cores
• Impact resistance — Switch: 1000 m/s
2
, Connector: 300 m/s
2
• Insulation resistance — 50 M
Ω
or more at 500 VDC Mega (between lead wire and case)
• Withstand voltage — 1000 VAC for 1 minute (between lead wire and case)
• Ambient temperature — –10 to 60
°
C
• Enclosure — IEC60529 standard IP67
• Polarity: Non-polar
Magnetic Field Resistance
Dimensions
If the current of the AC welding machine is 16000 A or lower, the auto switch can be used, even if the
distance between the welding conductor (gun cable) and the cylinder/actuator or auto switch is 0 mm.
Please contact SMC when the AC welding current exceeds 16000 A.
∗
When the auto switch is ordered on its own, the auto switch mounting bracket is not enclosed.
In that case, please order it separately.
Note) A white color heat
shrink tube is attached
to the D-P3DWSE
type only.
NO.3 (OUT
±
)
Connector pin assignment
NO.4 (OUT )
±
±
NO.1 (OUT
±
)
NO.4 (OUT )
4
3
2
1
Unit: g
Unit: mm
Mass
Auto switch model
Lead wire length (m)
0.3
23
D-P3DWSC
D-P3DWSE
Body
Auto switch mounting bracket
(For round groove mounting:
BQ3-032S)
Auto switch mounting bracket
(For square groove mounting:
BMG5-025S)
For details about certified products
conforming to international standards,
visit us at www.smcworld.com.
Switch
main circuit
Switch
main circuit
1
S20-201A-D-P3DW.qxd 10.1.28 10:59 AM Page 2
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
