EHTT station class hookstick medium-voltage disconnects

EHTT station class hookstick medium-voltage disconnects

15-38 kV
  • Rated continuous current up to 1,200 A

  • Lightning impulse (BIL) up to 200 kV

EHTT medium-voltage station class hookstick disconnects

Utilizing the advantages of the type EH switch in a tandem-transfer configuration, the EHTT provides an effective and safer means to redirect power when bypassing is required.


Watch the video below to learn more about Siemens medium-voltage air-break disconnect switches. 


Substation tandem transfer switching.


Features include:

  • High-pressure, coin-silver jaw contacts
  • Positive-latch, effective pry-out mechanism
  • Precision machined hinge and jaw castings for low-resistance connection
  • 90º blade stop
  • NEMA 3” D.B.C. insulators
  • Standard or customized mounting options
  • Galvanized steel channel or formed universal base.


  • Porcelain or polymer insulator
  • Loadbreak hooks
  • Cable connector
  • Tinned terminal pads
  • Backplate set.


  • Voltage ratings of 15 kV, 25 kV, or 38 kV
  • Rated continuous currents of 600 A, 900 A, or 1,200 A
  • Lightning impulses (BIL) of 110 kV, 150 kV, or 200 kV.

Mailing address

Siemens Industry, Inc.

99 Bolton Sullivan Drive

Heber Springs, Arkansas 72543

United States

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