Positive train control (PTC) filter with surge protector RRF-450-NFM-L from PolyPhaser is in-stock and available for same-day shipping. This railroad band pass filter is part of the RRF series that is engineered specifically to minimize RF interference for rail operations. (read more)

PolyPhaser IX-1H data line lightning surge protector (also known as lightning surge arrestor or suppressor). Our twisted pair lightning surge protector / arrestor will help protect your equipment from EMP (electromagnetic pulse) or surges in power that can be caused by lightning and other strong changes in electricity. (read more)

PolyPhaser coaxial RF surge protector (also known as lightning surge protector, lightning surge arrestor or suppressor). This radio frequency surge protector / lightning surge arrestor helps protect your equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning or other strong electrical changes. (read more)

PolyPhaser coaxial RF surge protector (also known as lightning surge protector, lightning surge arrestor or suppressor). This radio frequency surge protector / lightning surge arrestor helps protect your equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning or other strong electrical changes. (read more)

PolyPhaser 100 foot length, 1.5 inch wide copper strap. (read more)

Positive train control (PTC) filter RRF-ACE-220-NFF from PolyPhaser is in-stock and available for same-day shipping. This railroad band pass filter is part of the RRF series that is engineered specifically to minimize RF interference for rail operations. (read more)