Surge Protection Device
Sigma Surge Protection Devices (SPDs) are precision electrical protective devices designed to safeguard connected equipment, power grids, and electrical installations against lightning-induced and internal transient overvoltages.
Manufactured in compliance with the TS EN 61643-11 standard, Sigma Surge Protection Devices deliver high performance with their capability to suppress surge currents up to 100kA and overvoltages up to 1.4kV.
Available in 1, 2, 3 and 4-pole options
Manufacturing options for all risk levels, featuring Type I (Class B), Type II (Class C), Type III (Class D), Type I+II (Class B+C), Type II+III (Class C+D), and Type I+II+III (Class B+C+D)
Wide product range with discharge capacities of 3 kA (Data Protection SPD), 5kA, 40kA, and 100kA
Easy monitoring function via a visual flag indicator showing whether the device is operational or out of service
Control function via communication systems using the remote alarm contact supplied with the product
Comprehensive protection featuring an ultra-fast and precise response time
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