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Topaz 475S - Surge Protective Device 480V AC 100kA

Topaz
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The Topaz 475S is a high-performance surge protective device designed for safeguarding sensitive industrial equipment from transient overvoltages. It is rated for a maximum continuous operating voltage of 480V AC and a nominal discharge current of 20kA per mode, with a maximum surge current capacity of 100kA per phase. The unit features a compact, modular enclosure constructed from durable thermoplastic, weighing 13.95 lb, and is designed for easy DIN-rail or panel mounting. It complies with UL 1449 4th Edition for safety and ANSI/IEEE C62.41 for surge withstand capability, ensuring robust protection in harsh environments. Typical applications include motor control centers, distribution panels, and critical process control systems in manufacturing, oil and gas, and data center facilities.

Key Features & Specifications
  • Type: Surge Protective Device (SPD), modular, thermally protected metal oxide varistor (MOV) technology
  • Voltage Rating: 480V AC (3-phase, wye or delta)
  • Current Rating: 20kA nominal discharge current (In), 100kA maximum surge current (Imax) per phase
  • Dimensions: 6.5" x 4.0" x 3.5" (H x W x D)
  • Standards: UL 1449 4th Edition, ANSI/IEEE C62.41
  • Applications: Industrial motor control centers, distribution panels, process control systems, oil and gas facilities
  • Mounting: DIN-rail or panel mount
  • Enclosure: Thermoplastic, NEMA 4X rated
  • Frequency Rating: 50/60 Hz
  • Connection: Hardwired, #14-2 AWG
  • Poles: 3-phase + ground
  • Protection: Surge, transient overvoltage
  • Functions: Surge suppression, transient voltage clamping
  • Operating Temperature: -40°C to +85°C


Product Identification
  • UPC: 75133833630
  • GTIN: 00751338336308