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Manual Transfer Switch for Quick Portable Generator Connection

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StormSwitch™ Manual Transfer Switch

ESL’s Manual Transfer Switch is UL/cUL 1008 Listed up to 3000A, OSHPD seismic certified (OSP), and offers the ideal solution for portable generator connection to grid-tied facilities. StormSwitch™ provides pluggable connectors and a manual transfer switch allowing a quick, safe portable generator connection and operation for any commercial building. Once installed by a licensed electrician, the StormSwitch™ is so easy and safe to operate that only basic training is required. No KIRK® key* or trapped key interlocks are necessary.

Manual Transfer Switch Solutions

800A StormSwitch™

ESL’s StormSwitch offers unique solutions for commercial and industrial applications including:

  • Gas Stations/Convenience Stores
  • Water Wastewater
  • Call Centers
  • Manufacturing
  • Financial Centers
  • Cold Storage Facilities
  • Grocery Stores
  • Distribution Centers
  • Restaurants
  • Petrochemical
  • Health Care Facilities
*KIRK® Key is a registered trademark of Kirk Key Interlock Company, LLC


U.S. Patent 7462792B1

2017 NEC 700.3 (F) CODE CHANGES – LEARN HOW RECENT NEC CHANGES MAY AFFECT YOUR BUSINESS, AND HOW ESL CAN HELP!


  • StormSwitch™ Manual Transfer Switch
  • StormSwitch™ for Portable Generator Hookup
  • UL Listed 200A StormSwitch™ Manual Transfer Switch
  • StormSwitch manual transfer switch
    StormSwitch™ Manual Transfer Switch Installation
  • StormSwitch™ Manual Transfer Switch
  • 400A StormSwitch™ Manual Transfer Switch ensures cell site will remain powered up in the event of a power outage
  • 600A StormSwitch™ Manual Transfer Switch
  • 400AStormSwitch™ Manual Transfer Switch Bank Install
  • 200A StormSwitch™ Manual Transfer Switch with 15KVA Transformer
  • 200A StormSwitch Gas Station Install
  • 400A StormSwitch Gas Station Install
  • 400A StormSwitch Install at Bank Site
  • 400A StormSwitch Install
  • 400A StormSwitch
  • Manual Transfer Switch Install
  • Pad Mounted 2500A StormSwitch
  • StormSwitch Bank Install
  • StormSwitch Manual Transfer Switch
  • 400A Manual Transfer Switch
  • 2000A Pad Mount StormSwitch
  • Contact

    ESL Power Systems, Inc.
    2800 Palisades Drive | Corona, CA 92878-9427
    t: (800) 922-4188 | +1 (951) 739-7000
    info@eslpwr.com

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