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Isolation Terminal Blocks

Bulletin 1492 Isolation IEC Screw-Type Terminal Blocks

Bulletin 1492 Isolation Terminal Blocks provide an easier and more convenient means of opening a circuit without rewiring.


  • Tin-plated terminal and zinc chromate steel screws
  • Four-sided funnel wire guides
  • Finger-safe housing
  • Backed-out screws
  • Self-locking screw type clamp design
  • Wide range of accessories available


  • 1492 IEC Screw-type Isolation Terminal Blocks


  • UR, CSA, IEC-UL Recognized

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

Frequently Viewed Publications

Terminal Blocks and Power Distribution Terminal Blocks Brochure1492-BR018
Screw Type and Spring-clamp IEC & NEMA Terminal Blocks Product Profile1492-PP019
More IEC Terminal Block publications in Literature LibraryAll Languages

Product Catalog

Find catalog numbers, certifications, and specifications.


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

Can’t Find What You Need?

Browse our Literature Library where you can search for additional publications in more languages. You can also use the Advanced Search feature to search by catalog number, publication type, title, or keywords to narrow your results.

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Configuration & Selection Tools

  • CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
  • eCADWorks — Select product 3D-CAD drawings in AutoCAD®.
  • ProposalWorks — Build complete quotes and proposals.
  • Rail Builder — Design DIN rail systems.

Other Resources

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


We offer a variety of accessories for your IEC Screw-type Isolation Terminal Blocks, including:

  • DIN rail receptacles
  • End anchors and end retainers
  • End barriers
  • Jumpers
  • Marking solutions
  • Mounting rails
  • Partition plates and separation plates
  • Test plugs, sockets, and adapters

View all IEC Screw-type Isolation Terminal Block accessories