Honeywell™ Commercial 400-Amp Automatic Transfer Switch (120/208V)


  • Brand: HONEYWELL
  • Product Code: BTS-456265
  • Availability: In Stock

Choose to cover every circuit all the time or only essential circuits when paired with a generator sized to your application. Honeywell open transition transfer switches are ideal for residential and commercial applications.

400-Amp Automatic Transfer Switch (120/208V 3-Phase)

  • For 120/208V 3-Phase Honeywell™ Commercial Generators

Aluminum, NEMA Type 3R Enclosure

  • Weather-resistant design for indoor & outdoor installation
  • Electrostatically applied and baked powder coating paint (Gray)

Designed For Standard Installation*

  • May require a sub-panel for overload protection

Work's With Honeywell's Sync 1.0™ Generator Controller

  • Generator's controller handles all the timing, sensing & exercising

Electrically Operated, Mechanically-Held Contacts

  • For fast, positive connections that you can depend on

Tech Spec Summary: (See Spec Sheet For More Info)

  • Rated 400-Amps @ 208V
  • Transition Type: Open
  • Withstand Rating: 18,000 Amps --- Lug Range: 600 MCM - #4 or 2-250 MCM

2-Year Limited Warranty

Model NumberRTSZ400G3
Product Specs
Voltage120/208 Three-Phase
Frequency60 Hertz
Rated Amps400 Amps
EnclosureNEMA 3R
Transfer Switch StyleStandard Installation
ATS Load PrioritizingNot Compatible
ATS Load SheddingNot Compatible
ATS Poles3 Poles
ATS Service DisconnectNo
Max Utility Input400 Amps
Max Generator Input400 Amps
UL ListedYes
Weight133 Pounds
Made in USAYes
Consumer Warranty2 Years
Product Length36.1 Inches
Product Width24 Inches
Product Height10 Inches

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