text.skipToContent text.skipToNavigation

Silicone Station Post

By Hubbell Power Systems 

Catalog ID: PSSP250TR288

By Hubbell Power Systems
Catalog ID:  PSSP250TR288
Silicone Station Post insulator, series 250, 5" bolt circles.
  • Hydrophobic, silicone polymer for improved contamination performance
  • Over-molded design to prevent moisture ingress
  • Lightweight, vandalism resistant and price competitive compared to porcelain
  • Designed to meet the requirements of the associated TR numbers

More Options

Product Details


Application Station Post
Cantilever Bending Strength - Routine 1517
Fitting - Ground/Base 5" B.C. Tapped
Fitting - Live Line End 5" B.C. Tapped
Material Silicone
Material - End Fitting Galvanized Steel
Number of Sheds 31
Shed Style Alternating
Tensile Strength Standard Strength
Tensile Strength - Routine 30000 lb
Torsional Strength 9000
UPC 096359697862


Diameter - Large Shed 7.3
Diameter - Small Shed 6.1
Length - Effective 54 in
Rod Diameter 2.5
Weight 51 lb

Electrical Ratings

BIL 650 kV
Creep and Leakage Distance 145 in (3700 mm)
Voltage - Line 138 kV
Withstand Voltage - 60 Hz Wet 280
kV Class 138 kV

Certifications and Compliance

Industry Standard(s) ANSI TR 288


Standard Package 1

Resources and Downloads