30 Amps Transfer Switch

Model: STS-30

Whether you’re using solar, batteries or a generator to power your AC devices on the road, chances are, you’re going to want to use shore power when it’s available. Connect a Samlex Transfer Switch to your generator, or to your inverter/battery bank and have your AC source switched automatically to shore power when you plug in.

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Product Manual Samlex Specifications (EN)
30 Amps Transfer Switch
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  • Automatically switches between 2 separate AC input sources: Utility Power and a Generator; or Utility Power and Inverter; or Generator and Inverter
  • Has rated capacity of 30 Amps at 120 VAC and is suitable for 30 Amp Utility Power Cord and Generator of up to 3.6 KVA capacity
  • Uses heavy duty Double Pole Double Throw (DPDT) relay for switching both the Line and Neutral
  • Can be installed on the line side of the main breaker panel allowing switching of the entire load or on the load side to only switch dedicated circuits
  • DIP Switch select to enable time delay of 20 to 25 sec when transferring to a generator
  • Comes with a standard North American power cord for convenient connection to 15 Amp NEMA5-15R receptacles on a generator or an inverter with up to 1800 VA capacity (Replace this cord with 30 Amp cord if full 30 Amp capacity is required)
  • NEMA5-20R Duplex Receptacle for convenient connection of battery charger
Output120 VAC
Amps30 Amps
Weight4.4 (lbs)
Weight1.99 (kg)
Dimensions9 x 8.25 x 3.25 (in)
Dimensions22.9 x 21 x 8.3 (cm)
Warranty2 Year Limited
  • Solar power systems
  • Emergency backup power
  • Mobile offices
  • Boats
  • Lighting systems
  • Recreational vehicles, camping
  • Automotive
  • Telecommunications
  • Field work/construction sites
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