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

Outdoor systems for a more resilient grid

Power distribution grids are becoming more and more complex. To facilitate a reliable power supply, increased resilience is needed. Therefore, we focus on helping customers to improve the reliability and efficiency of their distribution grids. From the substation to the end users, we offer a complete portfolio for energy distribution over the entire supply chain: from planning through design and manufacturing up to installation, operation and service. By keeping them a step ahead of their challenges from end to end, utilities are enabled to optimize less developed network environments towards a future-oriented smarter grid.

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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.

Medium-voltage air-break disconnect switches overview video

Application:

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.

Options:

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

Ratings:

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.

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Support

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For more information, including service or parts, please contact our Customer Support Center by calling phone: +1 (800) 347-6659 or completing the contact us form.

Siemens Industry, Inc.

99 Bolton Sullivan Drive

Heber Springs, Arkansas 72543

United States

Request-for-quote, purchase order, and post-delivery support portal
Click on the link for Siemens' request-for-quote (RFQ), purchase order (PO) and post-delivery support portal for select low- and medium-voltage power distribution equipment, services, electric-vehicle charging products, and automation consulting and solutions.

Factory, virtual, and mobile showcases — Visit the power distribution demo showroom at Siemens in Wendell, North Carolina

In today’s world, it is more important than ever for our customers to have flexible and convenient ways to be able to learn about and experience how Siemens’ products and solutions can help them achieve their goals from medium- and low-voltage power distribution to the next generation of photovoltaic and eMobility products and solutions. We are proud to offer three distinct ways to demonstrate our capabilities to our customers: visit the Siemens' Wendell facility, take a virtual tour of the demo area or schedule a webinar, or have one of our trailers drive to your facility.

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