Elf Miniature Tongue Interlock Switches

Our Elf™ Miniature Tongue Interlock Switches are tongue-or key-operated safety interlock switches that fit at the leading edge of sliding, hinged or lift-off guards. The unique miniature housing makes the Elf interlock switch one of the smallest of its kind currently available. This switch is ideal for smaller machines such as printers, copiers and domestic machinery which, until now, have been unable to use safety interlocks due to space restrictions.

Bulletin 440K Elf Miniature Housing Tongue Interlock Switches
  • Overview
  • Product Selection
  • Specifications
  • Documentation
  • Resources

Features

  • Miniature housing is only 75 x 25 x 29 mm (2.95 x 0.98 x 1.14 in.)
  • Ideal for small, lightweight guards
  • Contacts, 2 N.C. or 1 N.O. and 1 N.C.
  • Eight possible actuator entry points, easy to install
  • Environmental protection: IP67
  • GD2 style available for demanding applications

Additional Information

  • Protect your people, productivity, and environment with our Safety Components and integrated Safety Solutions. We understand your factory floor challenges and can help you meet your goals with one of the broadest safety portfolios in the industry.

 

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Specifications

TitleNumberDownload
Elf and Cadet 3 Installation Instructions440K-IN001

Certifications

  • CE Marked for all applicable directives
  • CCC
  • cULus
  • TÜV

Safety Classification 

  • Cat. 1 Device per EN 954-1
  • Dual channel interlocks suitable for Cat. 3 or 4 systems 

Functional Safety Data

  • B10d: > 2 x 106 operations at min. load
  • PFHD: > 3 x10-7
  • MTTFd: > 385 years
  • Dual channel interlock may be suitable for performance levels Ple or Pld (according to ISO 13849-1:2006) and for use in SIL2 or SIL3 systems (according to IEC 62061) depending on application characteristics

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

Standards Compliance

  • EN 954-1
  • ISO 13849-1
  • IEC/EN 60204-1
  • NFPA 79
  • EN 1088
  • ISO 14119
  • IEC/EN 60947-5-1
  • ANSI B11.19
  • AS 4024.1

Product Certifications

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

Documentation

TitleNumberDownload
Safety Switches BrochureGLSAFE-BR002
Elf and Cadet 3 Installation Instructions440K-IN001
More Safety Interlock Switch 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

  • CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
  • ProposalWorks — Build complete quotes and proposals.

Other Resources

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