SolaHD™ STF Series Active Tracking Filters

Error reading resource;productId=15538;placement=carousel-overlay;view=default;environment=site%3AEmerson%2520Electric;pageId=solahd-stf: 400 Error reading resource;categoryId=10585;productId=15538;view=asAssets;environment=site%3AEmerson%2520Electric;parameter=orientation%253Dsquare%252Ctypes%253Dall;pageId=solahd-stf: 400

SolaHD™ STF Series Active Tracking Filters


STF Series Active Tracking Filters guard against, low voltage/high frequency energy transients. Electrical noise caused by everyday events—for example, turning on machinery, motors or equipment—can be very damaging over time. STF filters are available in a wide variety of voltage and amperage ratings, for both single and three phase power. They are hardwired and designed for years of trouble free operation, requiring little or no user intervention after installation

Error reading resource;productId=15538;placement=certification-badges;view=default;environment=site%3AEmerson%2520Electric;pageId=solahd-stf: 400
Error reading resource;productId=15538;placement=utility-belt;view=default;environment=site%3AEmerson%2520Electric;pageId=solahd-stf: 400 Error reading resource;categoryId=10585;productId=15538;view=downloadAssetAsJson;environment=site%3AEmerson%2520Electric;pageId=solahd-stf: 400


  • cULus, RoHS
  • Non degrading, series filter technology for total durability
  • High frequency noise filter, RLC low-pass filter
  • Three phase applications up to 200 Amp
  • Attenuates noise to 40 dB in frequency range of 50 kHz to 50 MHz
  • Operating temperature from -40°C to +45°C
  • Hardwired connection
  • MTBF greater than 100,000 hours, Mil Std. 217F


Fuse/Circuit Breaker Ampacity
15, 30, 50, 100, 200 Amps
50/60 Hz
Input Voltage Range
120/208, 277/480 Vac Wye; 240, 480 Vac ∆
Number of Phases
Three Phase
Operating Temperature
-40°C to +45°C

Documents & Drawings

Training & Services

Error reading resource;categoryId=10585;productId=15538;environment=site%3AEmerson%2520Electric;parameter=pdpAdditionalContent%253Dtrue;pageId=solahd-stf: 400