Inductive Proximity Sensors
2–121
Description
Bulletin
871P V
ersaCubet inductive
proximity sensors are self-contained,
solid state devices designed to sense
the presence of ferrous and nonferrous
metal objects without touching them.
The special weld field immune models
are ideal for welding environments and
other applications where magnetic
fields are present. General Purpose
871P VersaCube models are available
for more standard applications where
long sensing distance and compact size
are required.
The unique VersaCube package is
ideal for applications in which space is
limited. Their overall size is
approximately half that of limit switch
style models. The two mounting holes
on the V
ersaCube base align with
standard limit switch style mounting
holes allowing easy and convenient
retrofit capability
.
V
ersaCube models feature two LEDs,
one for output and one for power and
short-circuit indication. Connection
options include mini and micro
quick-disconnect.
Features
S5-position sensing head
S
Rugged burn and weld-slag resistant
housing on weld-field immune
models
S
Mini and micro quick-disconnect
styles
SW
eld field immunity (some models)
S
Short circuit protection
SFalse pulse protection
S
Overload protection
ST
ransient noise protection
S
Reverse polarity protection (DC
models)
S
UL listed, c–UL certified, and CE
marked for all applicable directives
Styles
General Purpose DC
3-Wire V
ersaCube page 2–122.
. . . . . .
W
eld Field Immune DC
3-Wire V
ersaCube page 2–122
. . . . . . .
General Purpose AC/DC
2-Wire V
ersaCube page 2–125
. . . . . . .
W
eld Field Immune AC/DC
2-Wire V
ersaCube page 2–125
. . . . . . .
Equal Sensing DC
3-Wire V
ersaCube page 2–128
. . . . . . .
Accessories
Quick-Disconnect Cables page 5–1
. . .
Mounting Kit
page 2–194
. . . . . . . . . . . .
Limit Switch Style
Mounting Bracket
page 2–195
. . . . . . . .
Teflon Covers page 2–196
. . . . . . . . . . .
General Information
Metric/English
Conversion Chart
page 11–1.
. . . . . . . .
Bulletin
871P V
ersaCubet
Inductive Proximity Sensors
2–122
871P DC Mini
Quick-Disconnect Style
page
2–123
871P DC WFI Micro
Quick-Disconnect Style
page
2–123
871P DC General Purpose
Micro Quick-Disconnect Style
page
2–123
Features
SNew rugged housing
SW
eld field immune models
S
Burn and weld-slag resistant body on
weld field immune models
SConvenient mounting base
S
3-wire operation
S4-pin connection
S10–60V DC
S
Normally open or normally closed
output
S
Short circuit, overload, false pulse,
transient noise, and reverse polarity
protection
S
UL listed, c–UL certified, and CE
marked for all applicable directives
Specifications
Correction Factors
Target Material Correction Factor
Steel 1.0
Stainless
Steel
0.7–0.8
Brass 0.4–0.5
Aluminum 0.3–0.4
Copper 0.2–0.3
871P VersaCubet
3-W
ire DC
≤200mA
≤10µA
10–60V DC
<2.5V @ 200mA
≤5%
5% typical
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
N/A
Quick-Disconnect: 4-pin mini style
4-pin micro style
UL listed, c–UL certified and CE marked for all applicable directives
NEMA 1, 2, 3, 4, 6, 6P, 12, 13; IP67 (IEC 529), 1200 psi (8270kPa)
washdown; Plastic body, zinc base
Orange: Output Energized
Green: Power
–25_C to +70_C (–13_F to +158_F)
30g, 11ms
55Hz, 1mm amplitude, 3 planes
Load Current
Leakage Current
Operating Voltage
Voltage Drop
Repeatability
Hysteresis
False Pulse Protection
Transient Noise Protection
Short Circuit Protection
Overload Protection
Reverse Polarity Protection
Weld Field Immunity
Connections
Approvals
Enclosure
LED
Operating Temperature
Shock
Vibration
≤200mA
≤10µA
10–60V DC
<2.5V @ 200mA
≤10% of effective operating distance
12% typical
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
1000 Gauss Ê
Quick-Disconnect: 4-pin mini style
4-pin micro style
General Purpose Weld Field Immune
Ê
Measured with field perpendicular to face.
Inductive Proximity Sensors
2–123
Selection Guide
He d
Weld Field
Nomin l Sen
s
ing Di
s
t nce
Otpt
Switching
Catalog Number
H
ea
d
Size
W
e
ld
Fi
e
ld
Immune
N
om
i
na
l
S
ens
i
ng
Di
stance
mm (inches) Shielded
O
utput
Configuration
S
w
i
tc
hi
ng
Frequency (Hz) Mini QD Style Micro QD Style
NO
PNP 871P–D20NP40–N4 871P–D20NP40–D4
20 (0 79)
Y
N.O.
NPN 871P–D20NN40–N4 871P–D20NN40–D4
20 (0.79)
Y
NC
PNP 871P–D20CP40–N4 871P–D20CP40–D4
N
N.C.
NPN
100
871P–D20CN40–N4 871P–D20CN40–D4
N
NO
PNP
100
871P–D40NP40–N4
Ê
871P–D40NP40–D4
Ê
40 (1 57)
N
N.O.
NPN
871P–D40NN40–N4
Ê
871P–D40NN40–D4
Ê
40 (1.57)
N
NC
PNP
871P–D40CP40–N4
Ê
871P–D40CP40–D4
Ê
40mm
N.C.
NPN
871P–D40CN40–N4
Ê
871P–D40CN40–D4
Ê
40mm
NO
PNP 871P–DW15NP40–N4 871P–DW15NP40–D4
15 (0 59)
Y
N.O.
NPN 871P–DW15NN40–N4 871P–DW15NN40–D4
15 (0.59)
Y
NC
PNP 871P–DW15CP40–N4 871P–DW15CP40–D4
Y
N.C.
NPN
50
871P–DW15CN40–N4 871P–DW15CN40–D4
Y
NO
PNP
50
871P–DW25NP40–N4 871P–DW25NP40–D4
25 (0 98)
N
N.O.
NPN 871P–DW25NN40–N4 871P–DW25NN40–D4
25 (0.98)
N
NC
PNP 871P–DW25CP40–N4 871P–DW25CP40–D4
N.C.
NPN 871P–DW25CN40–N4 871P–DW25CN40–D4
Recommended Standard QD Cordset (–6F = 1.8m (6ft), –2 = 2m (6.5ft)) 889N–F4AFC–6F 889D–F4AC–2
Ê
Assured operating distance for general purpose unshielded models is 0 to 33mm.
QD Cordsets and Accessories
Description Page Number
Other Cordsets Available 5–8, 5–26
Terminal Chambers 5–19
Mounting Kit Ë2–194
Limit Switch Style
Mounting Brackets 2–195
Teflon Covers 2–196
ËEach Weld Field Immune unit is supplied with
mounting hardware, a ground lug, a ground screw,
and an optional adaptor for competitive retrofits.
Additional sets of hardware are available under
catalog number 871A–PKIT.
871P VersaCubet
3-W
ire DC
Inductive Proximity Sensors
2–124
Dimensions—mm (inches)
30.0 (1.18)Ë
2 Places
7/8–16 UN–2A
7.3 (0.29) x 5.3 (0.21)
Mounting Slots
4 Places
28.2
(1.11)
68.7
(2.70)
46.2
(1.82)Ê
40.0
(1.57)
40.0
(1.57)
General
Purpose Mini QD Style
30.0 (1.18)Ë
2 Places
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
40.0
(1.57)
28.2
(1.11)
46.2
(1.82)Ê
68.8
(2.71)
40.0
(1.57)
General
Purpose Micro QD Style
M12 X 1
WFI
Mini QD Style
WFI Micro QD Style
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
30.0 (1.18)
Ë
2 Places
M12 X 1
40.0
(1.57)
28.2
(1.11)
46.2
(1.82)Ê
68.8
(2.71)
40.0
(1.57)
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
30.0 (1.18)
Ë
2 Places
7/8–16 UN–2A
40.0
(1.57)
68.7
(2.70)
28.2
(1.11)
46.2
(1.82)Ê
40.0
(1.57)
ÊWith retrofit adaptor, distance from face to mounting holes becomes 60.0 (2.36).
ËWith retrofit adaptor, spacing between mounting holes becomes 20.0 (0.79).
Wiring Diagrams
Mini
QD Style
Normally
Open or Normally Closed
NPN (Sinking)
14
23
–
Load
+
10–60V
DC
+–
PNP (Sourcing)
+
Load
–
–+
41
32
10–60V DC
Micro
QD Style
Normally
Open or Normally Closed
NPN (Sinking)
Load
10–60V
DC
+–
4
1
2
3
–+
–+
10–60V DC
4
1
2
3
Load
–+
PNP (Sourcing)
Note:
Unit must be mounted to a grounded metal frame or grounded via field wiring lug per NEC requirements. Recommended grounding lug is available in
Allen-Bradley mounting kit
871A–PKIT
. This kit is included with all weld field immune models.
871P VersaCubet
3-W
ire DC
Inductive Proximity Sensors
2–125
871P AC/DC General Purpose
Micro Quick-Disconnect Style
page
2–126
871P AC/DC WFI Mini
Quick-Disconnect Style
page
2–126
871P AC/DC WFI Micro
Quick-Disconnect Style
page
2–126
Features
SNew rugged housing
S
Burn and weld-slag resistant body on
weld field immune models
SConvenient mounting base
S
2-wire operation
S3-pin connection
S20–250V AC/DC
S
Normally open or normally closed
output
SW
eld-field immune models
S
Short circuit, overload, false pulse,
and transient noise protection
S
UL listed, c–UL certified, and CE
marked for all applicable directives
Specifications
Correction Factors
Target Material Correction Factor
Steel 1.0
Stainless
Steel
0.7–0.8
Brass 0.4–0.5
Aluminum 0.3–0.4
Copper 0.2–0.3
871P VersaCubet
2-W
ire AC/DC
2–100mA
≤ 2A
≤1.5mA@20V
≤1.7mA@120V
≤2.0mA@250V
20–250V AC/DC
<10V
≤10% of effective operating distance
12% typical
Incorporated
Incorporated
Incorporated
Incorporated
N/A
UL listed, c–UL certified, and CE marked for all applicable directives
NEMA 1, 2, 3, 4, 6, 6P, 12, 13; IP67 (IEC 529), 1200 psi (8270kPa)
washdown; Plastic body, zinc base
Quick-Disconnect: 3-pin mini style
3-pin micro style
Red: Output Energized
Green: Power (short circuit if flashing)
–25_C to +70_C (–13_F to +158_F)
30g, 11ms
55Hz, 1mm amplitude, 3 planes
Load Current
Inrush Current (1 cycle)
Leakage Current
Operating Voltage
Voltage Drop
Repeatability
Hysteresis
False Pulse Protection
Transient Noise Protection
Short Circuit Protection
Overload Protection
Weld-Field Immunity
Approvals
Enclosure
Connections
LED
Operating Temperature
Shock
Vibration
Ê
Measured with field perpendicular to sensing face.
General Purpose Weld Field Immune
2–300mA
≤ 2A
≤1.5mA@20V
≤1.7mA@120V
≤2.0mA@250V
20–250V AC/DC
<10V
≤10% of effective operating distance
12% typical
Incorporated
Incorporated
Incorporated
Incorporated
1000 Gauss Ê
Inductive Proximity Sensors
2–126
Selection Guide
He d
Weld Field
Nomin l Sen
s
ing Di
s
t nce
Otpt
Switching
Catalog Number
H
ea
d
Size
W
e
ld
Fi
e
ld
Immune
N
om
i
na
l
S
ens
i
ng
Di
stance
mm (inches) Shielded
O
utput
Configuration
S
w
i
tc
hi
ng
Frequency (Hz) Mini QD Style Micro QD Style
20 (0 79)
Y
N.O.
30
871P–B20N40–N3 871P–B20N40–R3
N
20 (0.79)
Y
N.C.
30
871P–B20C40–N3 871P–B20C40–R3
N
40 (1 57)
N
N.O.
20
871P–B40N40–N3
Ê
871P–B40N40–R3
Ê
40mm
40 (1.57)
N
N.C.
20
871P–B40C40–N3
Ê
871P–B40C40–R3
Ê
40mm
15 (0 59)
Y
N.O.
30
871P–BW15N40–N3 871P–BW15N40–R3
Y
15 (0.59)
Y
N.C.
30
871P–BW15C40–N3 871P–BW15C40–R3
Y
25 (0 98)
N
N.O.
20
871P–BW25N40–N3 871P–BW25N40–R3
25 (0.98)
N
N.C.
20
871P–BW25C40–N3 871P–BW25C40–R3
Recommended Standard QD Cordset (–6F = 1.8m (6ft), –2 = 2m (6.5ft)) 889N–F3AFC–6F 889R–F3ACA–2
Ê
Assured operating distance for general purpose unshielded models is 0 to 33mm.
QD Cordsets and Accessories
Description Page Number
Other Cordsets Available 5–8, 5–44
Terminal Chambers 5–19
Mounting Kit Ë2–194
Limit Switch Style
Mounting Brackets 2–195
Teflon Covers 2–196
ËEach Weld Field Immune unit is supplied with
mounting hardware, a ground lug, a ground screw,
and an optional adaptor for competitive retrofits.
Additional sets of hardware are available under
catalog number 871A–PKIT.
871P VersaCubet
2-W
ire AC/DC
Inductive Proximity Sensors
2–127
Dimensions—mm (inches)
30.0 (1.18)Ë
2 Places
7/8–16 UN–2A
7.3 (0.29) x 5.3 (0.21)
Mounting Slots
4 Places
28.2
(1.11)
68.7
(2.70)
46.2
(1.82)Ê
40.0
(1.57)
40.0
(1.57)
General
Purpose Mini QD Style
30.0 (1.18)Ë
2 Places
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
1/2–20
UNF–2A
40.0
(1.57)
28.2
(1.11)
46.2
(1.82)Ê
68.8
(2.71)
40.0
(1.57)
General
Purpose Micro QD Style
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
30.0 (1.18)
Ë
2 Places
7/8–16 UN–2A
40.0
(1.57)
68.7
(2.70)
28.2
(1.11)
46.2
(1.82)Ê
40.0
(1.57)
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
30.0 (1.18)
Ë
2 Places
1/2–20 UNF–2A
40.0
(1.57)
28.2
(1.11)
46.2
(1.82)Ê
68.8
(2.71)
40.0
(1.57)
WFI
Mini QD Style
WFI Micro QD Style
ÊWith retrofit adaptor, distance from face to mounting holes becomes 60.0 (2.36).
ËWith retrofit adaptor, spacing between mounting holes becomes 20.0 (0.79).
Wiring Diagrams
Mini
QD Style
Normally
Open or Normally Closed
Load
1
32
Ground
Note:
Load can be switched to pin 3.
Micro
QD Style
Normally
Open or Normally Closed
Load
1
2
3
Ground
Note:
Load can be switched to pin 2.
Note:
Unit must be mounted to a grounded metal frame or grounded via field wiring lug per NEC requirements. Recommended grounding lug is available in
Allen-Bradley mounting kit
871A–PKIT
. This kit is included with all weld field immune models.
871P VersaCubet
2-W
ire AC/DC
Inductive Proximity Sensors
2–128
871P DC Mini
Quick-Disconnect Style
page
2–129
871P DC Micro
Quick-Disconnect Style
page
2–129
Features
SEqual
sensing distance from all
metals
SRugged housing
SConvenient mounting base
S
Short circuit, overload, false pulse,
transient noise, and reverse polarity
protection
SW
eld field immune
S
UL listed, c–UL certified, and CE
marked for all applicable directives
Specifications
Correction Factors
Target Material Correction Factor
Steel 1.0
Stainless
Steel
1.0
Brass 1.0
Aluminum 1.0
Copper 1.0
871P
Equal Sensing V
ersaCubet
3-W
ire DC
≤200mA
≤10µA
10–30V DC
<2.5V @ 200mA
≤2%
5% typical
Incorporated
Incorporated
Incorporated
Incorporated
Incorporated
1000 Gauss
Quick-Disconnect: 4-pin mini style
4-pin micro style
UL listed, c–UL certified, and CE marked for all applicable directives
NEMA 1, 2, 3, 4, 6, 6P, 12, 13; IP67 (IEC 529), 1200 psi (8270kPa)
washdown; Plastic body, zinc base
Orange: Output Energized
Green: Power
–25_C to +70_C (–13_F to +158_F)
30g, 11ms
55Hz, 1mm amplitude, 3 planes
Load Current
Leakage Current
Operating Voltage
Voltage Drop
Repeatability
Hysteresis
False Pulse Protection
Transient Noise Protection
Short Circuit Protection
Overload Protection
Reverse Polarity Protection
Weld Field Immunity
Connections
Approvals
Enclosure
LED
Operating Temperature
Shock
Vibration
General Purpose
Inductive Proximity Sensors
2–129
Selection Guide
He d
Weld Field
Nomin l Sen
s
ing Di
s
t nce
Catalog Number
H
ea
d
Size
W
e
ld
Fi
e
ld
Immune
N
om
i
na
l
S
ens
i
ng
Di
stance
mm (inches) Shielded
utput
Configuration
w
tc
ng
Frequency (Hz) Mini QD Style Micro QD Style
NO
PNP 871P–DB25NP40–N4 871P–DB25NP40–D4
40mm
Y
25 (0 98)
N
N.O.
NPN
871P–DB25NN40–N4 871P–DB25NN40–D4
40mm Y
25 (0.98)
N
NC
PNP
100
871P–DB25CP40–N4 871P–DB25CP40–D4
N.C.
NPN 871P–DB25CN40–N4 871P–DB25CN40–D4
Recommended Standard QD Cordset (–6F = 1.8m (6ft), –2 = 2m (6.5ft)) 889N–F4AFC–6F 889D–F4AC–2
Dimensions—mm (inches)
30.0 (1.18)Ë
2 Places
7/8–16 UN–2A
7.3 (0.29) x 5.3 (0.21)
Mounting Slots
4 Places
28.2
(1.11)
68.7
(2.70)
46.2
(1.82)Ê
40.0
(1.57)
40.0
(1.57)
Mini
QD Style
30.0 (1.18)Ë
2 Places
7.3 (0.29) x 5.3 (0.21)
Mounting Slots 4 Places
M12 x 1
40.0
(1.57)
28.2
(1.11)
46.2
(1.82)Ê
68.8
(2.71)
40.0
(1.57)
Micro
QD Style
Wiring Diagrams
Mini
QD Style
Normally
Open or Normally Closed
NPN (Sinking)
14
23
–
Load
+
10–30V
DC
+–
PNP (Sourcing)
+
Load
–
–+
41
32
10–30V DC
Micro
QD Style
Normally
Open or Normally Closed
NPN (Sinking)
Load
+–
4
1
2
3
–+
10–30V
DC
–+
4
12
3
Load
–+
PNP (Sourcing)
10–30V DC
Note:
Unit must be mounted to a grounded metal frame or grounded via field wiring lug per NEC requirements. Recommended grounding lug is available in
Allen-Bradley mounting kit
871A–PKIT.
871P
Equal Sensing V
ersaCubet
3-W
ire DC
Inductive Proximity Sensors
2–130
Notes