The Most Advanced SoftStartUp™ Plug & Play Soft Starter:
Starts Up to Two RV A/Cs with One Plug-In Device

SoftStartUp RV Soft Start Controller

  • Starts and runs up to two RV A/Cs on a 50-amp or 30-amp power pedestal
  • Starts and runs up to two RV A/Cs on a 3,000-watt generator *
  • Starts and runs up to two RV A/Cs on a 3000-watt solar power inverter
  • Starts and runs one RV A/C on a 2200-watt generator
  • Starts and runs one RV A/C on a 2000-watt solar inverter
  • Starts multiple RV appliances simultaneously †
  • Plug-in ready – no installation or wiring connections
  • Includes 30/50-amp adapter cable to connect to
    30-amp receptacle power source

* Grounding plug may be required for some generators (available separately)
† Depends on total electrical power available

MSRP $1295
Special Introductory Price: $795

Select the Quantity, then click Buy SoftStartRV

Advantages of the Innovative, Complete SoftStartUp Soft Starter

  • Only ONE SoftStartUp controller is needed – even if there are two rooftop air conditioners.
  • SoftStartUp simply plugs into a 50-amp power source. No crawling up on the RV roof to make wiring connections is needed; no installation fees!
  • Reduces startup power to critical devices, including major items like your A/C and refrigerator – even when off-grid – without tripping off the power source.
  • Allows simultaneous start of multiple RV devices.
  • Helps protect A/C compressor windings from overheating during startups; extends compressor life.
  • Portable – Simply unplug it and use it on another RV.
  • Can also be used with home backup generator during power emergencies to help keep more appliances and devices running.
  • Connects to 30-amp power source with free adapter.

For Campgrounds and Off-Grid Camping

SoftStartUp Performance Capabilities

SoftStartUp sharply reduces startup power demand of appliances that require a high inductive load at startup (such as air conditioners, refrigerators, freezers, microwave ovens). SoftStartUp reduces the startup power demand by up to 50% without stalling out appliances or causing the power circuit breaker to trip.

Graph A indicates startup power use of a typical RV air conditioner.

The continuous high spikes at STARTUP mean the A/C is pulling over 4 times the power normally needed to RUN the A/C. This can cause A/C to stall out and overheat compressor windings.

Graph B indicates startup of a typical RV air conditioner receiving power through a SoftStartUp module.

The power spikes are quickly reduced to eliminate stalled A/C, RV power cutoff, premature A/C compressor failure, and other problems associated with A/C startup.

Technical Specifications

 Model number: SSUP50
 Voltage: 120V/240V, 50 Amps: 60 Hz
120V, 30 Amps: 60 Hz
Amp. Rating 50 Amps
Power Consumption: < 1 Watt
Max. Ambient Temperature 122ºF (50ºC)
 Dimensions: 30.0”h x 6.37”w x 2.35”d (76 cm × 16 cm × 6 cm)
 Weight: 2.5 lb. (1.13 kg)
  Warranty: One-year limited warranty (standard)
 In the Package: SoftStartUp soft start controller
30-amp to 50-amp adapter
Specifications are subject to change without notice.  


Buy Now and Save $500

SoftStartUp™ Advanced Plug & Play RV A/C Soft Starter

Every SoftStartUp comes with:

  • 30-amp to 50-amp adapter cable to use with
    30-amp power sources
  • FREE 90-day “Love It or Return It” trial period
  • FREE shipping in the USA and Canada
  • One-year warranty