Bourns Multifuse PPTC Resettable Fuse, TVS Diode Array Inductor Kit, 3 pieces

Bourns DC SPD for Photovoltaic applications

Hybrid MOV/GDT design
No leakage over life
DIN Rail mountable
40 kA maximum impulse current rating
Minimal footprint within DC power system
Uni-block design with replaceable modules
Visual fault indicator
Thermal disconnect

Surge Protection Devices, SPDs (DIN-rail)

Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage spikes are usually caused by lightning strikes and can reach up to 6000V, with current surges of over 3000A. The maximum size of the let-through voltage and current inrush depends on the location within the building's wiring system. BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.