PSM 20

PSM-20 is the range of devices for discharging induced transient overvoltages (Type 2+3 / Class II+III). DIN rail plug-in format.

Suitable for the second stage of protection in supply distribution panels in which Type 1 protection devices are installed, or for the first stage of protection in residential, commercial or other applications not exposed to direct strikes and with no external lightning protection system.
High discharge capacity with an 8/20 μs waveform. Imax: 20 kA.
Exclusive devices for TNS, TNC, TT. 120/208 V, 230/400 V, 277/480 V networks.
Reversible chassis to allow cable entry from above or below.
Mechanically polarized cartridges depending on the network voltage, to avoid possible cartridge replacement errors.
Biconnect - two types of terminal: for rigid or flexible cable and for fork type comb busbar.