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SPA103 – Three Phase Surge Protection Device – Type 2

An image of a Wallis three phase neutral surge protector
An image of a Wallis three phase neutral surge protector in a plastic enclosureAn image of a Wallis three phase neutral surge protector in a metal enclosure

SPA103 Datasheet (Click here to open)

The SPA103 is for installation at LPZ0B-1 or higher, protecting low voltage equipment from surge damage.

This surge protection device has a pluggable modular SPD Class 2 (Class C) for TT and TN-S power supply system.

The SPA103 is usually installed in the distribution-box or feeder bus of the UPS, protecting devices or equipment downstream.

A fuse must be installed at the upstream of the SPD/lightning arrester to ensure that the protected system has double protection.

  • Type 2 – Class 2
  • DIN Rail Mountable
  • Maximum Continuous Operating Voltage – 275VAC
  • Nominal Discharge Current (8/20) – 20kA (L-N); 20kA (N-PE)
  • Maximum Discharge Current (8/20) – 40kA (L-N); 40kA (N-PE)
  • Voltage Protection Level at In< 1.3kV (L-N); < 1.8kV (N-PE)
  • Voltage Protection Level 5kA – < 1.0kV (L-N)

This surge protection device can be purchased as a unit on its own or with a metal or plastic enclosure.

Three Phase Neutral Surge Protective Device

Operating Temperature Range – -40oC to +80oC

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