1250-3S-230, Bourns, 1250 Surge Arrester 415 V ac Maximum Voltage Rating 50kA Maximum Surge Current 3 Pole Protector

Bourns 1250 series Surge Protection Devices

50 kA max. discharge current rating
Multi-pole uni-block design
DIN Rail mountable
UL 60691 compliant integrated thermal disconnect
Visual fault indicator
Remote signalling capability
Compact design ideal for limited spaces

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.

1250 Series General Duty AC Surge Protective Device

Bourns PortNote Solution for 1250 Series General Duty AC Surge Protective Devices - Update Memo