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Briggs & Stratton Dual 200A/Split 400A 1ph-120/240V Service Rated Nema 3R Automatic Transfer Switch with Symphony Choice
$2,148.92
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Customer reviews & Questions
Verified buyer reviews
- Reviews (71)
- Questions (4)
BLAKE
03/03/2025
Paired with 26 kW Briggs generator, flawless integration, nothing to program
ariana
09/28/2024
symphony choice is magic lets both ACs run without tripping love it .
ANTHONY WALKER
07/26/2024
Hooked it up in one afternoon smooth as butter runs both my panels no sweat
evan
09/22/2024
do I mount it outside
A1 SolarStoreKATE
09/02/2024
Single phase only?
A1 SolarStorebrooklyn moore
08/10/2024
will it work with my 22 kW briggs generator
A1 SolarStoreGEORGE
07/26/2024
Does this ATS replace two 200 amp switches
A1 SolarStoreSpecification
| Manufacturer | Briggs & Stratton |
| Manufacturer Part # | 071257 |
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About product
The Briggs & Stratton Dual 200 A/Split 400 A Service‑Rated Automatic Transfer Switch with Symphony Choice safeguards larger homes and small businesses that use 400‑amp split services. By combining two 200‑amp service‑entrance disconnects and a high‑speed transfer mechanism inside one rugged NEMA 3R enclosure, it delivers seamless, code‑compliant power switching while freeing up wall space and install time.
- Dual 200 A (split 400 A) service‑entrance‑rated automatic transfer switch
- Single‑phase 120/240 VAC, 2‑pole open‑transition design
- NEMA 3R powder‑coated steel enclosure for indoor or outdoor mounting
- Symphony Choice™ power management — prioritises up to eight managed loads (including two HVAC circuits)
- Replaces two separate 200 A transfer switches for a cleaner, more economical installation
- Compatible with Briggs & Stratton Fortress, PowerProtect™ and Amplify™ standby generators, plus most 120/240 V sets
- Service‑entrance disconnect breakers, mechanical interlock and clear labelling enhance safety and maintenance
- UL 1008 listed and NEC 2023 compliant
Smart, automatic protection
When utility power drops, the switch senses the outage, starts the generator and transfers both 200‑amp panels in seconds. Symphony Choice continuously balances heavy‑duty motor loads and sensitive electronics so comfort systems, appliances and lighting stay powered without overloading the generator.
All‑in‑one convenience for split 400 A services
Instead of mounting two separate ATS units, installers can now land both utility feeds and both generator feeds in a single enclosure. Pre‑wired current transformers, roomy knockouts and colour‑coded lugs streamline wiring and speed inspection sign‑off.
Built to weather the worst
A gasketed, powder‑coated cabinet shrugs off rain, sleet and snow. Separate breaker compartments satisfy the latest arc‑flash provisions, giving you future‑proof compliance wherever local codes update.
Installer‑friendly layout
Generous lug ranges accept conductors up to 300 MCM, while pre‑installed neutral and ground bars keep terminations neat. A bonding screw is included for quick conversion between service‑disconnect and sub‑panel applications.
Electrical Ratings
Amperage: Dual 200 A (split 400 A) • Voltage/Phase: 120/240 VAC, 1φ • Poles: 2 • Enclosure: NEMA 3R • Listing: UL 1008
Size
34'' x 24'' x 7''
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- Genuine Products: You’re getting the real deal, backed by the manufacturer’s warranty.
- Exclusive Offers: You can access promotions, discounts, or bundles that are only available through authorized distributors.
- Competitive Pricing: We offer the best prices because we source directly from the manufacturer, with no middlemen driving up costs.
Authorized Distributor- Overview
- FAQ
Generator Accessories: Essential Upgrades for Uninterrupted Power
⚡ Key Takeaway: From battery warmers to smart transfer switches, generator accessories safeguard your investment, extend equipment life, and deliver hands-free, reliable power when the grid goes dark.
Why Generator Accessories Matter
Generators supply critical electricity during outages, but their performance hinges on a suite of supporting components. Battery and oil warmers ensure cold-weather starts, maintenance kits keep engines running at peak efficiency, and power management devices balance loads so smaller generators can handle bigger jobs. Automatic transfer switches (ATS) complete the ecosystem by shifting household circuits to generator power in seconds—no cords, no manual intervention.
Industry analysts value the global ATS market at $1.46 billion in 2024, with forecasts topping $1.75 billion by 2033
Key Generator Accessories
❄️ Battery Warmers
Insulated heating pads keep starter batteries between 40–55 °F so cranking amps don’t plummet in freezing weather—eliminating up to 60 % of cold-start failures.
🛠️ Maintenance Kits
OEM-matched kits bundle air and oil filters, spark plugs, engine oil, funnels, and shop towels, streamlining annual or 100-hour service and cutting unplanned downtime.
🌡️ Oil Warmers
Crank-case and oil-filter heaters prevent viscosity spikes that starve engines of lubrication, reducing wear and shortening warm-up times in sub-freezing climates.
⚙️ Power Management Modules
Smart relays prioritize heavy loads (HVAC, water heaters) and shed non-essentials, letting you run a lighter, more fuel-efficient generator without overload risk.
📊 Power Monitors
Wi-Fi-enabled monitors deliver real-time runtime hours, fault codes, and fuel levels to your phone—now a standard feature on many residential standby systems.
🔌 Transfer Switches
Automatic and manual ATS units isolate your home from the utility and switch designated circuits to generator power within seconds, eliminating dangerous back-feed and manual cord swaps.
Benefits of Accessorizing Your Generator
🔋 Reliability in Extreme Conditions
Battery oil warmers cut cold-start failures by as much as 80 % at −20 °F, ensuring your generator fires when you need it most.
💡 Smarter, Smaller Systems
With intelligent power management, homeowners often downsize one generator class—saving $500–$1,500 up front and reducing fuel consumption.
Installation & Maintenance Tips
⚙️ Proper Setup & Service
Install battery and oil heaters on a thermostat-controlled circuit; verify ATS amperage matches generator output and local code. Follow manufacturer service intervals—most air-cooled units need maintenance every 100–200 hours or annually, whichever comes first.
Cost Snapshot
- Battery warmers: $100 – $250
- Maintenance kits: $40 – $100
- Oil warmers: $90 – $150
- Power management modules: $300 – $600
- Power monitors: $200 – $400
- Automatic transfer switches: $400 – $2,000
Frequently Asked Questions
Do I need a battery warmer in a mild climate?
If winter temperatures rarely drop below 40 °F, a battery warmer is optional. However, if you experience occasional freezes, adding one protects against rare but critical cold-start failures.
How often should I change generator oil and filters?
Most manufacturers recommend service every 100 hours of runtime or once per year—whichever comes first. Always use the correct maintenance kit for your model.
Can I install a transfer switch myself?
Manual switches may be homeowner-installable in some jurisdictions, but automatic transfer switches usually require a licensed electrician to meet code and warranty requirements.
What’s the difference between a power monitor and a power management module?
A power monitor lets you view status and fault data, while a power management module actively controls and prioritizes loads to prevent generator overload.
Will accessories void my generator warranty?
Using manufacturer-approved accessories maintains warranty coverage. Third-party parts may be acceptable if they meet OEM specifications—check your warranty booklet.
Ready to Upgrade Your Generator System?
Browse our curated selection of battery warmers, maintenance kits, power management devices, and smart transfer switches to keep your generator running flawlessly, no matter the weather.
Shop Generator AccessoriesWhat energy storage solutions does Briggs & Stratton offer?
They provide SimpliPHI® batteries, Sol-Ark® hybrid inverters, and AccESS™ integrated systems for residential and commercial energy storage.
How safe are Briggs & Stratton batteries?
Briggs & Stratton uses Lithium Ferro Phosphate (LFP) chemistry, known for its thermal stability and long lifespan, along with a Battery Management System (BMS) for monitoring.
Do Briggs & Stratton storage systems qualify for solar incentives?
Yes, they are eligible for the 30% Federal Solar Tax Credit (ITC) and may qualify for state and local rebates.
Are their products compatible with generators?
Yes, they can integrate with Briggs & Stratton standby generators and other third-party generators for hybrid power solutions.
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