PSM PV is the range of devices to protect photovoltaic installations against transient overvoltages. These protectors have been specifically designed for the DC side of roofs and solar farms up to 1500Vdc, and even for off-grid at low voltages.
Cirprotec’s commitment to the needs of exporting customers (panel builders and OEM system integrators), translates into a multi-certified PSM PV range UL 1449 4th Ed and EN-50539-11.
The entire range has recently been updated from the 3rd to the 4th edition of UL 1449 for USA and Canada (File E468946), ahead of the deadlines foreseen by the standard itself.
Cirprotec uses the dynamic thermal disconnection system optimized for DC voltages with high breaking capacity. In this way, it is not necessary to install a back-up fuse to interrupt the short-circuit currents typical of any PV installation.
