Best Transfer Switches of 2025: Top Picks Reviewed

Choosing the right transfer switch is essential for safely connecting your generator to your home. After researching dozens of models and analyzing customer reviews, we’ve identified the best transfer switches for every budget and use case.

Our Top Picks at a Glance

Product	Type	Amps	Circuits	Best For	Price Range
Reliance 310CRK	Manual	30A	10	Best Overall	$280-$350
Generac 6853 Home Link	Manual	30A	10	Best Generac	$320-$380
Reliance 306LRK	Manual	30A	6	Best Budget	$170-$220
Reliance PB50	Manual	50A	10	Best 50 Amp	$350-$420
Generac 6853	Manual	30A	10	Best Premium Manual	$320-$380

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Best Overall: Reliance Controls 310CRK

The Reliance Controls 310CRK is our top recommendation for most homeowners. This complete kit includes everything you need to connect a portable generator to your home’s electrical system safely.

Why We Chose It

The 310CRK stands out because it offers the best combination of capacity, features, and value. With 10 circuits, you can power your most important systems: refrigerator, furnace, well pump, lights, and more. The included watt meters help you monitor your load to avoid overloading your generator.

Pros:

• Complete kit with inlet box and cord
• Built-in watt meters for load monitoring
• Easy-to-follow installation instructions
• 10 circuits handle most essential loads
• 5-year manufacturer warranty

Cons:

• Indoor installation only
• Requires professional installation for most homeowners
• 30A limit may not suit larger generators

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Best Automatic: Generac RXSW200A3

For homeowners investing in a standby generator, the Generac RXSW200A3 is the automatic transfer switch to get. It monitors your utility power 24/7 and automatically transfers to generator power within seconds of an outage.

Why We Chose It

This is a true whole-house solution. The 200-amp service-rated design means it can be installed between your meter and main panel, providing backup power to your entire home—not just selected circuits.

Pros:

• Whole house backup capability
• Completely automatic operation
• Works when you’re away from home
• Outdoor rated (NEMA 3R)
• Compatible with Generac standby generators

Cons:

• Higher cost than manual switches
• Requires standby generator (not for portables)
• Professional installation required
• Only works with compatible generators

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Best Budget: Reliance Controls 306LRK

The Reliance Controls 306LRK offers reliable transfer switch functionality at a price that won’t break the bank. If you only need to power 6 essential circuits, this is excellent value.

Why We Chose It

At under $200, the 306LRK gives you the same Reliance quality and safety features as more expensive models. It’s ideal for smaller homes or those with modest backup power needs.

Pros:

• Most affordable quality option
• Trusted Reliance brand
• Simple 6-circuit design
• Compact footprint
• Same safety features as premium models

Cons:

• Only 6 circuits (may need more)
• Inlet box sold separately
• No watt meters included
• Indoor installation only

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Best 50 Amp: Reliance Controls PB50

For larger portable generators (8,000+ watts), the Reliance Controls PB50 provides the 50-amp capacity needed to take full advantage of your generator’s output.

Pros:

• Handles larger generators up to 12,500 watts
• Supports 240V circuits
• 10 circuit capacity
• Same quality as 30A version

Cons:

• Requires 50A generator outlet
• Higher cost than 30A models
• Inlet box sold separately

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Best Premium Manual: Generac 6853

The Generac 6853 Home Link is the premium manual transfer switch option, featuring LED indicators and an upgrade path if you later decide to add a standby generator.

Pros:

• Can upgrade to ATS later
• LED power status indicators
• Pre-wired for faster installation
• Works with any generator brand

Cons:

• Higher price than Reliance
• Shorter 3-year warranty
• Inlet box not included

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How to Choose the Right Transfer Switch

1. Match to Your Generator

Your transfer switch amperage should match your generator’s output:

Generator Size	Recommended Switch
3,000-5,000W	30 Amp
5,000-7,500W	30 Amp
7,500-10,000W	50 Amp
10,000W+	50 Amp or higher

2. Count Your Critical Circuits

Most manual transfer switches offer 6-10 circuits. Make a list of what you must power:

• Refrigerator
• Freezer
• Furnace/boiler
• Well pump
• Sump pump
• Key lighting circuits
• Medical equipment

3. Manual vs. Automatic

Choose Manual if:

• You have a portable generator
• You’re usually home during outages
• Budget is a concern

Choose Automatic if:

• You have a standby generator
• You travel frequently
• You need 24/7 protection

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Frequently Asked Questions

Frequently Asked Questions

What is the best transfer switch for a portable generator?

The Reliance Controls 310CRK is our top pick for portable generators. It's a 30-amp, 10-circuit manual transfer switch that includes everything you need for installation.

Are automatic transfer switches worth the extra cost?

Yes, if you travel frequently or need protection when you're away. An ATS automatically starts your generator and transfers power within seconds of an outage.

What size transfer switch do I need?

Match your transfer switch to your generator's output and your electrical panel. Most homes use 30-amp or 50-amp switches for portable generators, or 100-200 amp switches for standby generators.

Can I install a transfer switch myself?

While some homeowners with electrical experience install manual transfer switches, we recommend hiring a licensed electrician. It's required by code in most areas and ensures safety.

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The Bottom Line

For most homeowners with a portable generator, the Reliance Controls 310CRK offers the best combination of features, quality, and value. It includes everything you need in one kit and has a proven track record of reliability.

If you’re investing in a whole-house standby generator, the Generac RXSW200A3 provides seamless automatic protection.

On a tight budget? The Reliance Controls 306LRK delivers the same safety features at a lower price point.