UL 1449 3rd Edition certified OVR DIN Rail surge protective devices guard equipment from damage caused by transient surges from lightening strikes, upstream equipment and utility load switching. These products are approved as UL Type 4- recognized components and are usable in Type 2 applications. The product range utilizes fast-acting metal oxide varistors to limit overvoltage to values compatible with network equipment. Product features include:
- Pluggable cartridges: When one or more cartridges reaches end-of-life, the electrical circuit need not be isolated, nor does the entire device need to be removed. Simply pull the dead cartridge from its housing and plug in a new one.
- Integrated auxiliary contact: optional remote monitoring capability. Wiring an integrated 3-point 1A volt-free contact enables the operational state of the SPD to be monitored remotely.
ABB, Inc., www.abb.com