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Square D SSP04EMA12F - Surge Protection Device 480Y/277V 120kA

Square D
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Square D SSP04EMA12F is a surge protection device from the Schneider Electric EMA family, designed for robust electrical system protection in commercial and industrial applications. It operates on a 480Y/277 VAC, 3-phase, 4-wire system, with a peak surge current rating of 120 kA, a short circuit current rating of 200 kA, and a nominal discharge current of 20 kA. The unit features a surface-mount design in a NEMA 1 enclosure with dimensions of 19.5 in (495 mm) x 9.9 in (251 mm) x 5.3 in (135 mm), weighs 20.501 lb, and accepts copper wire sizes from AWG 10 to AWG 2. It complies with CSA C22.2 No 8, UL 1449:ed. 4, and UL 1283:ed. 5 standards, with UL and CSA certification, and operates within a temperature range of -13 to 158 °F (-25 to 70 °C). This device is typically applied for surge suppression in industrial control panels, commercial power distribution, and automation systems requiring enhanced noise filtering.

Key Features & Specifications
  • Type: QO
  • Voltage Rating: 480Y/277 VAC
  • Phase: 3
  • Wire: 4
  • Peak Surge Current: 120 kA
  • Short Circuit Current Rating: 200 kA
  • Nominal Discharge Current: 20 kA
  • Mounting: Surface
  • Nema Rating: 1
  • Dimensions: 19.5 in (495 mm) x 9.9 in (251 mm) x 5.3 in (135 mm) (Height x Width x Depth)
  • Weight: 20.501 lb
  • Wire Size: AWG 10 to AWG 2, Copper
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Standards: CSA C22.2 No 8, UL 1449:ed. 4, UL 1283:ed. 5
  • Certification: UL, CSA
  • Enhanced Filter: Yes