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Surge Protection

Protecting Data Centers & Control Panels with Mersen Class I+II Surge Protection (SPD)

Ved Prakash Yadav 8 Jul 2026 4 min read
Protecting Data Centers & Control Panels with Mersen Class I+II Surge Protection (SPD)
How transient surge protective devices intercept high-voltage switching spikes under 25 nanoseconds to safeguard computerized control rooms.

While lightning arresters protect building shells from direct strikes, indirect lightning pulses and utility switching operations create high-voltage transient surges over power lines that instantly burn server power supplies and PLC cards.

DIN-Rail Mounted Mersen SPDs

ReErth Technologies distributes Class I+II DIN-rail mounted Mersen Surge Protection Devices. Featuring Metal Oxide Varistors (MOVs) and spark gaps, these units clamp dangerous voltage surges to safe levels within less than 25 nanoseconds.