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Briggs and Stratton Dual 200A / Split 400A Symphony® II SED Power Management Transfer Switch, Single Phase, NEMA 3R - 071057

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Briggs and Stratton Dual 200A / Split 400A Symphony® II SED Power Management Transfer Switch, Single Phase, NEMA 3R - 071057

$3,171.01 USD

$ $3,171.01 USD

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Briggs & Stratton 400A transfer switch – whole-estate power, one cabinet

The Briggs & Stratton 400A transfer switch is a vital device for managing backup power safely during outages. It is designed for high-capacity electrical systems, ensuring seamless transitions between utility power and generator power. This transfer switch protects your home or commercial facility from downtime, voltage spikes, and potential electrical hazards. Its durable construction and high performance make it well-suited for large homes, industrial operations, and critical environments.

During power interruptions, reliability is essential. The Briggs & Stratton 400A transfer switch offers automatic operation, strong load handling capabilities, and advanced safety features. It keeps essential systems operating without requiring manual intervention, reducing stress and potential risks during outages.

This switch replaces two 200 A units by managing split-service panels within a single UL 1008 rated enclosure. When the utility power fails, it starts the generator and powers every circuit automatically. Once grid power is restored, the switch returns to the utility supply smoothly.

Key Features of the Briggs & Stratton 400A transfer switch

Built-in AC-shedding Symphony II controller

The transfer switch includes a Symphony II controller that prioritizes eight high-wattage loads. This feature helps prevent generator overload while maintaining continuous power for critical systems. The device is housed in a NEMA 3R steel enclosure, enabling outdoor installation for shorter conduit runs and easier setup.

Specifications

**Briggs & Stratton 400A transfer switch** – technical data
Amperage rating	400 A (dual 200 A service disconnects)
Voltage / phase	120 / 240 V, single-phase, 60 Hz
Enclosure	NEMA 3R galvanneal steel, powder-coated
Dimensions (L × W × D)	37 × 23.7 × 7 in
Weight	111 lb
Load management	Symphony II – 8 priority circuits
UL listing	UL 1008 service-entrance rated
Warranty	6 years limited

Installation & Warranty

The Briggs & Stratton 400A transfer switch features pre-wired distribution, saving labor during installation. Its compact design fits in the space where two separate cabinets once stood. Each unit is backed by a 6-year factory warranty, ensuring long-term reliability and peace of mind.

What Makes the Briggs & Stratton 400A Transfer Switch Stand Out?

This transfer switch is engineered to manage heavy electrical loads with consistent power delivery. Its 400-amp rating supports multiple circuits demanded by large properties relying on high-output standby generators. This robust capacity ensures you won’t experience power interruptions during outages.

The switch automatically detects utility power loss and instantly transfers electrical loads to the generator. When utility power is restored, it switches back smoothly, preventing damaging surges. This fully automated function ensures both safety and peace of mind for property owners.

Heavy-Duty Design for High-Load Applications

High-quality materials and durable components provide long-term reliability in demanding electrical environments. The powder-coated galvanneal steel enclosure shields internal parts from environmental factors, reducing maintenance needs and extending product lifespan.

This transfer switch is ideal for properties with complex infrastructure, including HVAC systems, pumps, data equipment, and large appliances. Its efficient load management ensures stable and reliable power across all connected circuits, even under heavy demand.

Seamless Automatic Operation and Safety Features

Safety is a core design priority of the Briggs & Stratton 400A transfer switch. It prevents backfeeding by ensuring utility power and generator power never operate at the same time. This feature protects workers, equipment, and the entire electrical system from hazards.

Its automatic transfer function eliminates the need for manual switching during emergencies. The system reacts swiftly to outages, minimizing downtime while maintaining comfort and security with smooth, uninterrupted power transitions.

Compatibility with Standby Generator Systems

The transfer switch is designed for perfect integration with standby generator systems. This coordination optimizes power delivery and improves overall system efficiency while preventing overloads. Enhanced fuel efficiency is achieved through smart load management and synchronization.

Electricians appreciate its flexible setup and straightforward wiring, which simplify installation and reduce setup time. The Briggs & Stratton 400A transfer switch supports a wide range of electrical configurations to accommodate various applications.

Ideal Use Cases for the Briggs & Stratton 400A Transfer Switch

This transfer switch is perfect for properties requiring uninterrupted power supply. Large homes, commercial buildings, agricultural sites, and industrial facilities benefit from its high-capacity load management capabilities. It reliably supports critical systems such as HVAC, refrigeration, security, medical, and communication devices.

Users gain confidence knowing their backup power system will engage instantly and respond reliably during utility power outages. This enhances safety and reduces risks related to downtime or sudden power loss.

Long-Term Value and Peace of Mind

Choosing the Briggs & Stratton 400A transfer switch is an investment in safety, power continuity, and operational efficiency. Its robust design combined with smart automation lowers the risk of electrical failures and boosts system performance.

With professional installation and proper upkeep, this transfer switch provides dependable service over many years. It is a trusted choice for serious backup needs, ensuring your electrical system remains protected during outages and emergencies.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Briggs & Stratton 400A transfer switch – whole-estate power, one cabinet

Key Features of the Briggs & Stratton 400A transfer switch

Built-in AC-shedding Symphony II controller

Specifications

**Briggs & Stratton 400A transfer switch** – technical data
Amperage rating	400 A (dual 200 A service disconnects)
Voltage / phase	120 / 240 V, single-phase, 60 Hz
Enclosure	NEMA 3R galvanneal steel, powder-coated
Dimensions (L × W × D)	37 × 23.7 × 7 in
Weight	111 lb
Load management	Symphony II – 8 priority circuits
UL listing	UL 1008 service-entrance rated
Warranty	6 years limited

Installation & Warranty

What Makes the Briggs & Stratton 400A Transfer Switch Stand Out?

Heavy-Duty Design for High-Load Applications

Seamless Automatic Operation and Safety Features

Compatibility with Standby Generator Systems

Ideal Use Cases for the Briggs & Stratton 400A Transfer Switch

Long-Term Value and Peace of Mind

FAQs

Got a question? We are here to answer

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