Buying guide · 10 min read · Updated October 2, 2026

4 Best Soft Start For Dual RV Air Conditioners in 2026: A Practical RV Guide

Soft starts for RV rigs with two air conditioners compared on pair packs, 30 amp operation and generator fit, with a short list of capable options.

By Bowen HigginsRV Editor at RV Gear Lab4 products comparedSpec-sheet researched

A rig with two rooftop air conditioners is the hardest case for a small generator or a 30 amp supply, because two compressors can start in quick succession. A soft start per AC is the usual answer, and only a few listings address dual-AC use directly.

This shortlist is short on purpose: it covers the pair pack, a single unit that lists two ACs on 30 amp, a budget unit that does the same with two kits and one premium kit for comparison.

RV Gear Lab field notes

The Rig Fit Check

Start with the job: SoftStartRV RV AC Soft Start Kit leads this shortlist for Dual AC rigs. Use that fit as a reference point, then compare the alternatives against your own space and workload.
Specs that separate the picks: The first details to compare are Two-unit pair, 40% smaller, fits low-profile, Cuts start current 65 to 70%. Confirm the exact model and included components before ordering.
Trade-off to plan for: Overkill for one AC

Before you buy

What Matters Before You Choose a Soft Start For Dual RV Air Conditioners

Key buying criteria so you get the right fit the first time.

01
One soft start per AC
Each compressor needs its own soft start. A listing that says two ACs on 30 amp usually means two units. Check whether you need to buy two.
02
30 amp budget
A 30 amp supply is only 3,600 watts at 120V. Two ACs starting together can trip it. A soft start staggers the draw.
03
Pair vs two singles
A pair pack costs less than two singles at list price. It also gives matched units. Compare the total.
04
Generator size
A 2200W generator may run only one AC with a soft start. Check the stated generator size and plan for the second AC. Starting the two ACs a minute apart also helps.
05
Waterproof fit
Two units must both fit under the shrouds. A 40 percent smaller unit helps. Check the stated size.

Our standards

Why You Can Trust RV Gear Lab

At RV Gear Lab, we compare products based on rig fit and power or hookup compatibility, verified specifications, usability, setup requirements, weight, durability, and real-world trade-offs. We do not rank products purely on marketing claims or commission rates.

We have not personally tested every product listed. Where hands-on testing is not available, recommendations are based on verified manufacturer specifications, product documentation, use-case fit, and comparative research.

How we review RV gear →

Detailed reviews

The 4 best soft start for dual rv air conditioners, explained

Best Overall · 1 of 4

SoftStartRV RV AC Soft Start Kit

Two-unit pair
40% smaller, low-profile fit
100% waterproof

Check price on Amazon

Best for: Dual AC rigs

Our take

It suits owners with two rooftop ACs who want a matched set.

Why it made the shortlist

The SoftStartRV pair is two units that the listing says start two air conditioners on 30-amp service.

It costs about 30 dollars less than buying two CTBC units. The pair is matched, so both ACs get the same behaviour.

What works

100% waterproof
Starts on small generator
Two units for dual ACs

Watch out for

Overkill for one AC

The catch: The SoftStartRV pair is two units that the listing says start two air conditioners on 30-amp service, both waterproof and 40 percent smaller than before.

Check price on Amazon

Best Single Unit · 2 of 4

SoftStartRV Soft Start for RV Air Conditioner

40% smaller, fits low-profile
100% waterproof
Starts two A/Cs on 30 amp

Check price on Amazon

Best for: Buying one at a time

Our take

Its listing says it starts two A/Cs on 30-amp, one on a small generator or 15-amp, and runs a 15,000 BTU A/C on a 2200W generator.

Why it made the shortlist

Waterproofing is rated at 100 percent, which suits roof or compartment mounting.

It costs about half the pair, so you can start with one and add another later. It is 100 percent waterproof.

It suits owners who want to buy one now and one later.

What works

Starts two ACs on 30 amp
Quieter compressor startup
Fits low-profile RV air conditioners

Watch out for

Wiring work still required

The catch: A single SoftStartRV unit is 40 percent smaller for low-profile RV A/C units, and its listing says it starts two A/Cs on 30-amp.

Check price on Amazon

Best Budget · 3 of 4

Soft Start for RV Air Conditioner

Cuts start current 65 to 70%
15,000 BTU on 2200W generator
Overload and short circuit protection

Check price on Amazon

Best for: Two kits on a budget

Our take

Overload and short circuit protection come standard, and a single unit also serves a 20A household hookup.

Why it made the shortlist

Dual-AC use is what this Briidea is listed for, with two soft starters sharing a 30A hookup. Each one trims starting current by 65 to 70 percent and carries a rating to start a 15,000 BTU air conditioner from a 2200W generator.

Two Briidea kits cost about 160 dollars. That is far less than the SoftStartRV pair.

Budget buyers who do not mind buying two kits get the most value.

What works

Overload and short circuit protection
Five color-coded wires

Watch out for

No Bluetooth monitoring listed
Reduction figure lower than 75% rivals

Check price on Amazon

Best Premium Single · 4 of 4

MICRO-AIR EasyStart Flex 398 Soft Start Kit for Home & RV Air Conditioner

Up to 75% inrush reduction
4-wire color-coded hookup
Bluetooth app diagnostics

Check price on Amazon

Best for: One AC with diagnostics

Our take

Single-stage, two-stage and heat pump systems are all supported.

Why it made the shortlist

Bluetooth app diagnostics make the Micro-Air EasyStart Flex 398 simple to monitor on each air conditioner, and inrush current drops by up to 75 percent. Its 4-wire hookup with color-coded wiring keeps each install straightforward.

Each unit handles one AC across 2 to 6 ton systems. A dual rig uses two.

Owners who want diagnostics on both ACs get install videos too.

What works

Covers 2 to 6 ton systems
Install videos included
Cuts inrush current by up to 75%

Watch out for

No dual-AC claim on the listing

Check price on Amazon

Methodology

How We Built This Shortlist

Each pick was assessed across 5 criteria weighted for real-world use.

Dual-AC claims

Listings were checked for dual-AC operation, and the picks that do not state it are marked.

30 amp operation

Stated 30 amp operation was compared.

Pair vs single

Pair packs were compared with buying two single units.

Protection

Waterproof and overload protection were compared.

Price

Prices were compared per AC.

Decision guide

Match a Soft Start For Dual RV Air Conditioners to Your RV

By Buying Approach

Your situation	Recommended pick	Why
Both ACs at once	SoftStartRV Pair	Matched set in one pack.
One now, one later	SoftStartRV Single	Half the price of the pair.
Tight budget	Briidea Soft Start	Two kits for about 160 dollars.
Diagnostics	Micro-Air Flex 398	Bluetooth app diagnostics.

By Budget

Budget	Recommended pick
$70 to $300	Briidea Soft Start or SoftStartRV Single
$390 to $560	Micro-Air Flex 398 or SoftStartRV Pair

Pair Pack vs Two Singles

Pair pack

Matched units at a lower total, as with the SoftStartRV Pair.

Two singles

Flexible and spread over time, as with the SoftStartRV Single, Briidea Soft Start and Micro-Air Flex 398.

Most buyers should pick the SoftStartRV Pair, and two Briidea Soft Start units only on a tight budget.

By Budget

Budget	Recommended pick
Under 200 dollars total	Briidea Soft Start
About 300 dollars	SoftStartRV Single
About 560 dollars	SoftStartRV Pair
About 800 dollars	Micro-Air Flex 398

For a 30 Amp Dual-AC Trailer Specifically

Look for

A listing that states two ACs on 30 amp.

In this comparison

The SoftStartRV Pair and SoftStartRV Single both state it, and the Briidea Soft Start states it with two kits.

When to Spend More

Spend more if

Spend more on the SoftStartRV Pair for a matched set.

Save if

Save with the Briidea Soft Start.

FAQ

Before You Bring One Home

Do I need two soft starts for two ACs?

Usually yes, one per compressor. The pair pack covers both.

What mistake do buyers make?

They buy one unit for two ACs. Check the listing.

Is the pair worth the price?

It costs less than two singles. It is worth it for matched units.

How do I install two?

Install one soft start per AC and test each AC on its own first. Then run both together on the real power source to confirm the breaker holds.

Can one generator run both?

Only if it is large enough. Check the stated generator size.

Bottom line

The short version

Browse more soft start for dual rv air conditioners on Amazon →

About the author

Bowen Higgins

RV Editor at RV Gear Lab

Bowen covers RV power, water systems, towing and leveling, upkeep and interior comfort, with a focus on matching gear to the rig, the hookups and the way you actually travel.

4 Best Soft Start For Dual RV Air Conditioners in 2026: A Practical RV Guide

Our top picks

The Rig Fit Check

What Matters Before You Choose a Soft Start For Dual RV Air Conditioners

One soft start per AC

30 amp budget

Pair vs two singles

Generator size

Waterproof fit

Why You Can Trust RV Gear Lab

The 4 best soft start for dual rv air conditioners, explained

SoftStartRV RV AC Soft Start Kit

SoftStartRV Soft Start for RV Air Conditioner

Soft Start for RV Air Conditioner

MICRO-AIR EasyStart Flex 398 Soft Start Kit for Home & RV Air Conditioner

How We Built This Shortlist

Dual-AC claims

30 amp operation

Pair vs single

Protection

Price

Match a Soft Start For Dual RV Air Conditioners to Your RV

By Buying Approach

By Budget

Pair Pack vs Two Singles

By Budget

For a 30 Amp Dual-AC Trailer Specifically

When to Spend More

Before You Bring One Home

Do I need two soft starts for two ACs?

What mistake do buyers make?

Is the pair worth the price?

How do I install two?

Can one generator run both?

The short version

Bowen Higgins

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