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
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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
| Attribute | Details |
|---|---|
| Amperage | 50 Amps |
| Voltage | 120/240V AC |
| Enclosure Type | UL Type 1 – 16 GA Powder-Coated Steel |
| Listing | ETL Listed |
| Compliance | UL Standard 1008 / CSA C22.2 #178.AEI |
| Switch Type | Automatic Transfer Switch (ATS) |
| Series | Parallax ATS |
| Use Case | RVs, Boats, Cabins, Off-Grid Power Systems |
Need help confirming fitment?
Our team at United RV Parts is here to help you find the right replacement or parts for your Automatic Transfer Switch.
Text or call 817-984-1852 with the make and model number of your existing Automatic Transfer Switch and we’ll make sure you get exactly what you need the 1st time.
