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TRC 50 Amp Automatic Transfer Switch

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Catalog Item # 67274
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This model is a basic automatic transfer switch.
Automatically transfers RV to generator power 30 seconds after generator start-up to ensure generator output voltage is stable before powering appliances and accessories. Once the generator shuts down, it transfers to shore power after a 3-4 second delay when you are connected to a shore power pedestal. Mechanical interlocking contactors prevent contact damage during high current transfer operations.


  • 120/240 volt, 50 amp, 60 hz
  • ETL listed
  • Full transfer switch rating, UL1008
  • Contactor rating 50 amp
  • Generator dominant
  • Mechanical interlocking contactors

  • Technical Specs

    Tech Specs

    Weight: 8 lbs.

    Dimensions: 13.5"H x 9.5"W x 6"D

    Manufacturer: Technology Research Corp

    Mfg Part #: 40100

    Tech Notes: Electrical Rating: 120/240V, 50A
    Contactor Rating: 50A, FLA
    Time Delay at Power Up (Shore 3-4 Sec, Gen 30 Sec.): Yes
    Third Party Listed: Yes
    Generator Dominant: Yes
    Mechanical Interlocking Contactors: Yes

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