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E300 Series
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E300 Series

Single Sided Bypass/Isolation 

Commercial and Industrial Applications

The E300 Series of transfer switches are built for general purpose commercial and industrial applications requiring the dependability and ease of operation found in a power contactor switch. The E300 Series is built using ABBâs ZTG Series automatic transfer switch; the ZTG ATS is built for standard applications requiring the dependability and ease of operation found in a power contactor switch.

Design and Features 

  • Single sided bypass isolation on emergency
  •  Close differential 3 phase under-voltage sensing of Source 1 (normal)-factory standard setting 90% pickup, 80% dropout (adjustable); underfrequencysensing of Source 1 factory setting 95% pickup (adjustable)
  • Voltage and frequency sensing of the Source 2 (emergency)â"factorystandard setting 90% pickup voltage, 95% pickup frequency (adjustable)
  • Test switch (fast test/load/no load) to simulate Source 1 (normal) failureâ"automatically bypassed should the Source 2 (emergency) fail
  • Centralized Termination Point for ease of installation that includes contacts for:

o Pre/Post Signal

o Engine Start

o Not in Auto

o In Bypass

o ATS in Position 1

o ATS in Position 2

  •  NEMA Type 1 enclosure is standardâ" also available in NEMA 3R
  •  Ratings 40 to 1200 amps (3 poles or 4 poles up to 600A)
  • Double throw, mechanically interlocked contactor mechanism
  • Electrically operated, mechanically held
  • Designed for emergency and standby applications
  • Higher kA rating option

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