CITEL M50 and M50F Compact AC Panel Mount Surge Suppressors are UL1449 Type 1 and Type 2 AC power surge protection devices with a 50kA surge rating. The surge suppressors come in an aluminum cast NEMA 6R waterproof enclosure and feature a visual LED fault indicator and audible alarm. CITEL M50 and M50F Compact AC Panel Mount Surge Suppressors offer an extended life with no leakage current in a -35°C to +80°C ambient temperature range. The M50 and M50F devices are designed to be installed in branch and local distribution panels.