Parallax | 50 Amp Transfer Switch | ATS501 | 120VAC / 240VAC | 50 Amps | Screw Terminals

Reliable, Automatic Power Management for Your RV or Off-Grid System

The Parallax ATS501 is a dependable 50 Amp Automatic Transfer Switch designed for 120/240 Volt systems. Built to meet the rigorous demands of RV, marine, and off-grid electrical setups, this unit ensures seamless switching between multiple power sources—typically shore power and generator—without any manual intervention.

Whether you're upgrading your motorhome, fifth wheel, trailer, or tiny home system, the ATS501 offers smooth, reliable power transfer to keep your appliances and onboard systems running without disruption.

Key Features

• Automatic Power Source Switching
  Quickly and safely switches between generator power and shore power as needed—ensuring your RV always has access to the most stable energy source.

• Heavy-Duty 50 Amp Capacity
  Supports high-power systems and large RVs with 50 Amp service, making it ideal for full-time RVers and larger rigs with multiple appliances.

• Dual Voltage Operation – 120/240V
  Compatible with both 120V and 240V split-phase systems, covering a wide range of electrical setups.

• Durable, Powder-Coated Steel Enclosure
  Constructed with UL Type 1-rated 16-gauge steel, built to handle rugged conditions and resist wear over time.

• ETL Listed – Safety Certified
  Tested and listed to ETL standards, conforming to UL 1008 and CSA C22.2 #178.AEI, ensuring safe and reliable operation.

• Compact, Easy-to-Install Design
  Clean layout and robust build allow for easy integration into existing RV power systems.

Specifications