Inductive Proximity Sensors
871C 2-Wire NAMUR
Nickel-Plated Brass Barrel, Plastic Face
Specifications
Outputs NAMUR (conforms to DIN 19 234)
Load Current Target Present <1mA
Load Current Target Absent >3mA
871C NAMUR
Cable Style
8, 12, 18, 30mm
Operating Voltage 5-15V DC (8.2V DC nom., Ri = 1kohm, DIN 19 234)
Ripple Voltage <5%
Repeatability <10%
Hysteresis 10% typical
Reverse Polarity Protection Incorporated
False Pulse Protection Realized in amplifier
Transient Noise Protection Realized in amplifier
871C NAMUR
Micro QuickĆDisconnect Style
8, 12, 18, 30mm
Short Circuit Protection
Realized in amplifier
Overload Protection Realized in amplifier
Enclosure NEMA 4, IP67 (IEC 529)
Approvals FM approved
®
- Class I, II, III; Divisions 1, 2; Groups A, B, C, D, E, F, G
- Class I; Zone 0, 1, 2; Groups IIC, IIB, IIA; T6
CSA approved
Description
- Class I, II, III; Divisions 1, 2; Groups A, B, C, D, E, F, G
- Class I; Zone 0, 1, 2; Groups IIC, IIB, IIA
CENELEC (KEMA) approved
- Groups IIA, IIB, IIC; Zones 0, 1, 2 (EEx ia IIC T6)
CE marked for all applicable directives
For Allen-Bradley NAMUR style
sensors, the sensor input and output
conforms to NAMUR specifications (DIN
19 234) allowing these sensors to be
used with any approved NAMUR style
amplifier/ isolator. Allen-Bradley’s
NAMUR style sensors are Intrinsically
Safe when used with an approved
Intrinsically Safe NAMUR style isolator.
Connections Cable: 2m (6.5ft) length 2 conductor #22AWG PVC
QuickĆDisconnect: 4Ćpin micro style
LED None
Operating Temperature
-25_C to 60_C (-13_F to 140_F)
Shock 30g, 11ms
The 871C NAMUR style family of
sensors can be used in Class I, II, III;
Division 1 and 2; Groups A, B, C, D, E,
F, and G as well as Zones 0, 1, 2;
Groups IIA, IIB, IIC when used with
Allen-Bradley’s NAMUR style
Vibration 55Hz, 1mm amplitude, 3 planes
Housing Material NickelĆplated brass barrel, plastic face
Correction Factors
isolators/amplifiers. Installation must be
in accordance with the National
Electrical Code, ANSI/ISA RP12.6, or
per other regulations by authority
having jurisdiction over the installation
site as appropriate.
Target Material
Steel
Correction Factor
1.0
Stainless Steel
Brass
0.7-0.8
0.4-0.5
0.3-0.4
0.2-0.3
Aluminum
Copper
Features
S 2-Wire NAMUR operation
S 8, 12, 18, and 30mm sizes
S Short barrel length
Entity Parameters
Sensor
Barrier
WARNING: These parameters must
be adhered to. If not,
V
I
16V
w
V
max
t
!
injury may be caused to
person or property.
60mA
w
v
v
I
max
t
S Shielded and Unshielded models
C
150 F
n
C
L
i
a
S FM, CSA, and CENELEC (KEMA)
L
i
200µH
approved
a
R2–94
ROCKWELL [ ROCKWELL INTERNATIONAL CORPORATION. ]
