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Wilmore Electronics: Series 1737 converters

Complementing Wilmore Electronics Co. Inc.'s line of dc-dc converters used to power positive train control (PTC) electronics in onboard and trackside applications, Series 1737 converters make it possible to operate 74-V  locomotive electronics, including PTC electronics being required on ancillary vehicles (high-rail, track maintenance, etc.) in use by railroads.

These converters provide a nominal 74-Vdc output rated at up to 4 amperes (continuous duty) and are available in versions for use on 12-Vdc (Model 1737-12-74-4) and 24-Vdc (Model 1737-24-74-4) vehicles.

Features include 1,500-Vdc isolation between converter circuitry and chassis, high operating efficiencies and rugged construction to withstand the rigors of railway use.

"While much attention is necessarily being paid to installing PTC electronics onboard locomotives and in trackside sites ... there will also be the need to have PTC electronics on ancillary vehicles used by the railroads," Wilmore officials said.