DIN Rail Heavy Duty AC Surge Protectors

Our Bulletin 4983-DH Heavy-Duty AC Surge Protector combines a high-energy varistor (MOV) network with a gas discharge tube to increase performance in protection level, life duration, and suppression of leakage current. It is connected in parallel and can be located in the feeder circuit.


  • Offers UL 1449 certification
  • Provides the highest energy absorption capability of all Bulletin 4893 products
  • Includes a robust design which avoids unnecessary replacement
  • Offers a visual fault indicator that is linked to internal thermal disconnect
  • Provides an automatic trigger for SPD replacement
  • Offers safety remote signaling as a standard feature

Product Selection


  • CE Marked
  • CSA Marked
  • cURus — File E334011; Guide Nos. VZCA2, VZCA8

Standards Compliance

  • CSA C22.2, No. 8
  • EN 61643-11
  • IEC 61643-1
  • UL 1449, 3rd Edition
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
Surge and Filter Protection Brochure 4983-BR001
Power Quality Brochure POWER-BR011
Surge and Filter Specifications Technical Data 4983-TD001
Bulletin 4983 Surge and Filter Products White Paper 4983-WP001
Power Quality White Paper POWER-WP002
Heavy-duty AC Surge Protector Installation Instructions 4983-IN002
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