M50F-230S-A Type 2 single-phase parallel AC surge and filter protection panel

M50F series: AC SURGE PROTECTORS AND FILTER HARD-WIRED UNITS AND COMBINER BOXES 

CITEL offers a line of surge protectors for the single and three phase AC networks connected to sensitive equipment: M50F series.
M50F series surge protection devices in metal enclosures belong to a complete family of surge protection devices specifically designed to meet the requirements of the North American surge protection standards: USA and Canada. Respectively, the UL1449 ed4 standard and the C22.2 No.269.1–22.2 No.269.5 standards. 
They are available in all single, dual or three phase configurations and are equipped with various diagnostic options. Housed in a NEMA 6 metal enclosures, total surge capacities Imax = 100 kA. The protection circuit is based on a combination of high energy varistors and filter capacitors to provide a very high discharge current capability with EMI / RFI filtering. Manufactured in accordance with the UL1449 standard, the safe operation is ensured by real-time diagnostics including fault indicators (LEDs), an audible alarm, and remote signal contacts.