Rockwell Automation 871F User Manual

871F 2-wire AC/DC Proximity Sensors

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Suitable for use in Class 1, Division 2,
Groups A, B, C, D or nonhazardous
locations only.

Explosion hazard: substitution of
components may impair suitability for
Class 1, Division 2.

Explosion hazard: Do not disconnect
equipment unless power has been
switched off or the area is known to be
nonhazardous.

WARNING

871F for Hazardous Locations

Models covered:

Conduit 1/2-14 NPT

871F-R50N80-T2
871F-K65N80-T2

Conduit PG13.5

871F-R50N80-Q2
871F-K65N80-Q2

Installation Instructions

General Specifications

Electrical

Load Current ≤ 100 mA
Minimum Load Current 5 mA

Leakage Current

Operating Voltage 20…250V AC/DC
Voltage Drop ≤ 10V
Repeatability ≤ 5%
Hysteresis ≤ 10% typical
False Pulse Protection Incorporated
Transient Noise Protection Incorporated
Short Circuit Protection Incorporated
Overload Protection Incorporated

Environmental

Certifications

Enclosure

Mechanical

Housing material
Connections Conduit Opening:1/2-14NPT thread, PG 13.5

LEDs Green: Power

Operating Temperature [C (F)] -25…+70° (-13…+158°)
Shock 30 g, 11 ms
Vibration 55 Hz, 1 mm amplitude, 3 planes

≤ 1.8 mA @ 24V
≤ 1.8 mA @ 120V
≤ 2.0 mA @ 250V

cULus Listed, and CE Marked for all
applicable all directives

NEMA 1, 2, 3, 4, 6, 6P, 12 and 13, IP67
(IEC529)
1200 psi (8270 kPa) washdown
Division 2 Class I: Groups A, B, C, D

®

Valox

thread

Orange: Output Energized

Power, Control and Information Solutions Headquarters

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www.rockwel lautomation.com

Wiring Diagram

T2 T3

Load

Note: Load can be switched to terminal 2.

LEDs

65.0

(2.56)

44.0 (1.57)

83.0

(3.27)

65.0

(2.56)

6.0

(0.24)

94.0 (3.70)

Conduit opening
1/2 inch internal

thread

LEDs

44.0 (1.57)

94.0 (3.70)

6.0

(0.24)

83.0

(3.27)

65.0

(2.56)

65.0

(2.56)

Conduit opening

PG13.5 internal

thread

Active Face

dd

Mounting Space

Conduit Style 1/2-14 NPT, PG13.5 Normally Open

Approximate Dimensions [mm (in.)]

Conduit Style 1/2-14 NPT

Spacing Between Shielded Sensors (flush­mountable) and Nearby Metal Surfaces

Shielded proximity sensors allow the electro-mag­netic field to be concentrated to the front of the
sensor face. Shielded construction allows the
proximity to be mounted flush in surrounding metal
without causing a false trigger.

Flat Pack Style (871F)

Spacing Between Unshielded Sensors (nonflush­mountable) and Nearby Metal Surfaces

Longer sensing distances can be obtained by
using an unshielded sensor. Unshielded proximity
sensors require a metal-free zone around the
sensing face. Metal immediately opposite the
sensing face should be no closer than three times
the rated nominal sensing distance of the sensor.

Suggested mounting: M5 or SAE#10 cap screw should be
used with a split lock washer to install the unit.

Conduit Style PG13.5

Flat Pack Style (871F)

Active Face

d4d

dd

Copyright © 2012 Rockwell Automation, Inc. All Rights Reserved. PN-141168

10000243172 Ver 00

March 2012