Superior Electric, DIN1 PLUS Surge Arrester 300 V dc Maximum Voltage Rating 20kA Maximum Surge Current Surge Protection

Superior Electric DIN1 PLUS Series are ideal for protecting PLCs, fire alarm panels, Motion Control Systems, POS, kiosk, building management systems and other microprocessor based loads. Designed for surge protection and EMI/RFI noise attenuation against harmful transient voltages that exceed the nominal operating voltage of AC and DC critical dedicated control loads.

DIN Rail or wall mount tabs
ABS Plastic Compact Enclosure
All Mode Protection
AC and DC System Voltage Configurations
LED Status Indicator Light
High-Frequency Noise Filtering
Fail-safe Design

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.