parallax power

Parallax Power ATS503 Transfer Switch

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SKU:
19548849
MPN:
ats503
Availability:
Usually ships the same or next business day. In stock at our CA, FL, KS, MI, PA, TX, WA warehouses.
Shipping:
Calculated at Checkout
Stock Update:
12/20/2025 07:27:16 AM PST
$392.05
Stock Update:
12/20/2025 07:27:16 AM PST

Description

This item is brand-new, factory sealed.

Parallax Power Supply ATS503 120/240V 50 Amp Transfer Switch
  • 120/240 Volt
  • With a flick of the generator switch, the ATS 503 line generator switch from Parallax transfers power smoothly between shoreline power and generator/secondary power source, regardless of line voltage conditions
  • Engineered for superior reliability in 50 Amp
  • Electronic circuit board design is proven in extensive cycle testing to withstand heat and torque
  • Easy installation
  • Manufacturer: AP Products
  • Brand: Parallax Power Supply
  • Model: ATS503
  • Item Weight: 10 pounds
  • Product Dimensions: 14 x 12 x 6 inches
  • Item model number: ATS503
  • Manufacturer Part Number: ATS503

Parallax Power Supply Line Generator Switch Model ATS 503. With a flick of the generator switch, the ATS 503 line generator switch from Parallax transfers power smoothly between shoreline power and generator/secondary power source, regardless of line voltage conditions. ATS 503 is engineered for superior reliability in 50 Amp, 120/240-volt electrical systems (per the new UL Standard 1008). Electronic circuit board design is proven in extensive cycle testing to withstand heat and torque. The low-profile chassis measuring just 3-1/2 high allows mounting in areas not possible with other 50 Amp transfer switches, and installation can be made without cover removal. Manual shut-off for time delay optimizes use with inverters. 10 lbs.

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Warranty Information

All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Parallax Power ATS503 Transfer Switch
$392.05