Ferrogard 1, 2, 20, 21 Non-contact Interlock Switches

The Ferrogard™ 1, 2, 20 and 21 Non-contact Interlock Switches have plastic rectangular housings, making them ideal for wet environments. The magnetically actuated safety switches offer non-contact reliability together with tolerance to misalignment.

Bulletin 440N Ferrogard 1, 2, 20, 21 Non-contact Interlock Switches
  • Overview
  • Product Selection
  • Specifications
  • Documentation
  • Resources

Features

  • Non-contact actuation
  • High tolerance to misalignment
  • High switching current (2 A, 250V AC; 1 A, 24V DC)
  • Plastic rectangular housing (IP67)
  • Cable or quick-disconnect (QD) connections

Additional Information

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Specifications

TitleNumberDownload
440N-Z2NRS1A, 440N-Z2NRS1B, 440N-Z2NRS1Cs Installation Instructions (Ferrogard Non-contact Switches)440N-IN002

Certifications

  • CE Marked for all applicable directives

Safety Classification 

  • Cat. 1 Device per ISO13849-1
  • Dual channel interlocks suitable for Cat. 3 or 4 systems 

Functional Safety Data

  • B10d: > 2 x 106 operations at min.
  • PFHD: > 3 x 10-7
  • 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

  • ISO 13849-1
  • IEC/EN 60204-1
  • NFPA 79
  • EN 1088
  • 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
Ferrogard Installation InstructionsFERGRD-IN001
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Product Certifications

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

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Other Resources

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