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Manufacturer Part Number:
Surge Protection Device, SPD series, 120 kAIC, 277/480V wye (4W+G), Basic feature package, NEMA 4 enclosure, External side mount, 320 L-N, 320 L-G, 320 N-G, 640 L-L operating voltage



Lowest possible let-through voltage

Decrease the let-through voltages associated with long installation conductor lengths. By integrating the SPD directly within the electrical assembly you can save your sensitive equipment from hundreds of harmful voltages.

Visually access the health of your surge protection

At-a-glance LED status indicator lights for all phase, including neutral-to-ground.

Thermally protected MOVs bring more safety and less weight

Don’t risk potentially unsafe conditions or smoke damage from traditional MOVs. Eaton uses thermally protected MOVs as their surge suppression component, which disconnect automatically when subjected to abnormal conditions.

Low cost filtering option

Surge protective devices with filtering don’t have to be expensive. Get the protection of EMI/RFI filtering in an affordable, compact footprint.

The perfect addition to Eaton electrical assemblies

The SPD is only available as an integrated add-on product for Eaton electrical assemblies.



  • General specifications
  • Product Name Eaton SPD series surge protection device
  • Catalog Number SPD120480Y1N
  • UPC 786685334776
  • Product Length/Depth 9.5 in
  • Product Height 3.45 in
  • Product Width 5.4 in
  • Product Weight 3.5 lb
  • Warranty 15 year
  • Certifications UL 1449
  • Product specifications
  • Accessories Basic feature package
  • Interrupt rating 120 kAIC
  • Series SPD
  • Type Surge protection device
  • Operating voltage 320 L-N, 320 L-G, 320 N-G, 640 L-L
  • Enclosure NEMA 4X
  • Mounting Method External side
  • Voltage rating 277/480V wye (4W+G)
  • URL