Ring & Slot Inductive Proximity Sensors

Our Bulletin 871R Ring and Bulletin 871S Slot Sensors are specialty inductive sensors that determine the presence of metal objects passing through them. Ring sensors are available in 12, 20, 50 and 100 mm ring diameter sizes with minimum ball (target) sizes ranging from 2.5 mm to 8.0 mm. Slot sensors are available in 30 mm slot gap.

Bulletin 871R, 871S Ring & Slot Inductive Proximity Sensors
  • Overview
  • Product Selection
  • Specifications
  • Documentation
  • Resources
  • Applications

Features

  • Cable or micro QD style
  • Short circuit protection
  • Reverse polarity protection

To view commonly ordered and quickly available products, use the Product Configuration Assistant for our complete product offerings.

Specifications

TitleNumberDownload
Inductive Proximity Sensors Technical Data PROX-TD001

Certifications

  • CE Marked for all applicable directives

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Documentation

TitleNumberDownload
Presence Sensing BrochureSENSOR-BR001
Inductive Proximity Sensors Technical Data PROX-TD001
More Inductive Proximity Sensors publications in Literature LibraryAll Languages

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Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

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Other Resources

  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.

Applications

Typical applications for the Ring and Slot Sensors, Bulletin 871R and 871S, include:

  • Material handling
  • Packaging
  • Food processing
  • Transportation

Product Application Library — View our product application library to discover how customers have applied Allen-Bradley sensing products.