Alternating Relays

Bulletin 700-HTA Alternating Relays serve as interposing relays between your controller and field devices. The alternating feature lets you select the primary or secondary load or to alternate between the two. You can use these relays in applications with pumps, compressors, air conditioning, and refrigeration units.

Popular Resources/Quicklinks
Bulletin 700 General Purpose, Interposing, Solid-State and Specialty Relays Brochure Bulletin 700-HTA Alternating Relay Product Profile Relays and Timers Technical Data


  • Operates with one, two, or three control switches such as float switches, manual switches, timing relays, pressure switches, or other isolated contacts
  • Controls 12V, 24V, 120V or 240V AC operation
  • Includes 10 A single- or double-pole output configurations
  • Offers two light indicators that show status of the output relay
  • Includes compact plug-in design that uses existing industry-standard 8- or 11-pin octal sockets
  • Offers optional low profile selector switch to lock in one sequence

Allen-Bradley relays and timers are part of Rockwell Automation's Essential Components line. Learn more about how these industrial building blocks can streamline your installation, improve uptime and decrease maintenance—ultimately helping lower your costs. 

Product Selection

  • CE Marked (per EU Low Voltage Directive)
  • CSA Certified — File No. 223833
  • cULus Listed — File No. E3125; Guide Nos. NLDX/NLDX7 (with 700-HN100, 700-HN101, 700-HN125, and 700-HN126 Sockets)
  • UL Recognized — File No. E3125; Guide Nos. NLDX2/NLDX8)

Standards Compliance

  • CSA 22.2 No.14
  • EN61812-1
  • UL 508
Looking for Additional Information?

To find additional product information including CAD drawing files, 3D models and more use our Product Catalog.


Resource Publication Number Language
Bulletin 700 General Purpose, Interposing, Solid-State and Specialty Relays Brochure 700-BR018
Bulletin 700-HTA Alternating Relay Product Profile 700-PP024
Relays and Timers Technical Data 700-TD552
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