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Distribution

Hookstick

Distribution Disconnect Switches

Hookstick Distribution
Disconnect Switches

Type: THS Hookstick
Orientation: Vertical or underhung mounting
Ratings: 15kV through 27kV
Ratings A: 600 amperes

Download Hookstick Catalog (PDF)

Hookstick switches on overhead distribution systems perform a simple, yet important, function. They allow operations personnel to quickly and easily sectionalize distribution circuits for maintenance, repair, re-routing or expansion.

Equipped with load break hooks, Turner Electric THS hookstick switches can be used with approved load break hookstick tools to safely break up to rated currents at rated voltages.

TH2 hookstick switches are available in 15 through 27 kV voltages, 600A continuous current and withstand ratings of 25 kA for two seconds ratings (65kA peak). THS switches meet or exceed requirements of the ANSI/IEEE standard C37.30.

Construction

Positive blade latching is inherent in the unique design of the THS switch. A stainless steel spring maintains consistent contact pressure between the switch blade and the terminal contacts. Silver-plated-copper blade contact areas maximize current carrying performance.

Users can choose the degree of blade opening at time of installation by changing the position of a standard stainless steel clevis pin. Position one allows the blade to open only 90°. Position two allows the blade to open to 160°.

The galvanized steel base is equipped with one inch holes to allow dead ending of conductors. Switches can be surface mounted or cross-arm mounted. Cross arm mounting utilizes a separate bracket that is included with standard order.

Tin-plated copper NEMA two-hole terminal pads accept standard utility hardware and lugs.

Porcelain or polymer 2-1/4" inch bolt circle distribution insulators are available. Porcelain insulators have standard galvanized cast end caps. Polymer insulators employ stainless steel machined end caps.

Make Your Hookstick a Load-Break Switch
For more than 35 years, Turner Electric's TECO-Rupter® Vacuum Interrupters have been the technology of choice for loop and load-break applications because of their current-interrupting ability, superior reliability and ease of application.

The TECO-Rupter offers industry leading performance levels including superior TRV ratings compared to other load-break technologies such as SF6, longer service life and greater interrupting capacity. No other load-break device provides 5,000 full load operations at either 2,000 or 3,000 Ampere ratings and a TRV rating up to 57kV.

Ordering Information - THS Hookstick Switch

 
  Switch Rating 2 Second  
 
 Voltage
(BIL)
Continuous
Current
Peak
Withstand
Short
Time Current
Catalog
Number
 
 15kV 
 (110BIL)60065,00025kATHS01506 
 27 kV 
 (125BIL)60065,00025kATHS02706