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Citel MSB series have been designed to protect single-phase circuits (16-amp current limit) against harmful lightning surges and electrical transients. Consists of a hybrid technology that combines a 3-element surge arrester gas tube and MOVs (metal-oxide varistors) to provide a high power-handling capability (20kA – 8/20 ms waveform) per phase.

Available with and without an EMI/RFI noise filter to limit RF interference. Available in both 110 and 220 V AC versions.

Features green and orange LED lights for proper connections to the AC circuit and ground installation. Installed in series and mounts directly to a wall or backboard.