PSM-40 is the range of devices for discharging induced transient overvoltages (Type 2 / Class II). 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: 40 kA.
* Exclusive devices for TNS, TNC, TT or isolated IT earthing systems. 120/208 V, 230/400 V, 277/480 V, 690 V networks.
* Remote and visual indication of life status of the protection device.
* 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.
IEC/EN 61643-11; UL 1449 5th Edition
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