The new STF Series of Active Tracking® Filters were designed to safeguard industrial, medical and telecommunications equipment against damaging low-energy voltage transients and high-frequency noise.

STF Power Filters continuously track the input AC power line at all locations on the sinewave and instantaneously counter noise. By reducing normal mode transients to ±5 volts and absorbing large bandwidths of noise, they recreate a well-regulated sinusoidal waveform isolated from input disturbances.

Available in one- and three-phase configurations with input voltage of 120, 240 and 480 VAC at 50/60 Hz, STF Power Filters allow users to meet a wide range of power quality requirements.

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