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Briggs & Stratton Standard SED Transfer Switch, 150A, NEMA 3R
$875.24
Authorized Distributor
- SpecificationCompareSee all
Customer reviews & Questions
Verified buyer reviews
- Reviews (68)
- Questions
owned a year zero hiccups five big stars
installed a year ago zero issues five bright stars.
Checked temps under full load cool to the touch impressed
one year anniversary today zero failures zero regrets five shiny stars from me
One year owning today zero failures can’t beat that peace of mind.
Noise level like central AC not bad at all.
even grandma figured out the controller buttons nice and simple.
set it forget it peace of mind 24 / 7 cant beat it.
quiet mode exercise so soft I hardly hear it
Forget worrying about winter, this thing solved it
good gear just pricey.
Love ability to switch fuels flexible for rural home
installed outside in full sun no heat issues even at 95°f
InfoHub subscription extra cost but alerts are handy worth it to me
looks sharp gray aluminum case blends with siding
set it forget it peace of mind when grid drops
Runs the well pump, fridge, and my shop tools couldn’t ask for more
We work from home internet router never dropped once power went out perfect uptime.
Grid drop notice hit my phone then I heard the gen fire Timing perfect
first big test tornado watch no outages but self test quiet.
Nice low current draw; meter shows barely a blip.
Paired with 26 kW Briggs generator, flawless integration, nothing to program
Little louder than I hoped but still way quieter than the portable we had before
PowerProtect name fits it guarded my shop tools all day smooth voltage
Dual fuel = peace of mind switched to nat gas no hassle
7-year warranty sealed the deal feels like a long-term investment.
INSTALL TOOK 12 MIN TOPS cannot believe I waited this long
aluminum case survived freezing rain no rust no stains looks new.
aint let me down once power blips almost fun now
Storm knocked power 3 times this month switch didn’t miss a beat
keeps my electric dryer off till the fridge is steady, perfect load balance
Best home investment since the kitchen remodel peace of mind priceless
Slick little heater pad simple directions grandma could do it
five stars no doubt kept oil warm at ‑10 ° last night.
Generator guru here. Installed dozens—never one comeback. Reliable kit.
survived ice storm three days straight never skipped a beat
Heat pump and upstairs AC both happy zero overloads.
My wife thought we’d be in the dark for days install guy was done before lunch great product.
Seven-year warranty gave me confidence Quiet enough neighbors never complained.
Ran my 13 kW twice this week in snow, starts smooth like summer.
Kept battery warm through a weeklong outage. No hiccups at all.
Weekly self-test is neat I check it over coffee every Monday.
rain snow heat no problem out here in Wisconsin nice tough box.
love this thing saved me hundreds by keeping my old transfer switch
Hands-down best upgrade for our rural place no more dragging portables around
Running on natural gas here in Texas. Monthly test is 16 seconds—barely time to notice.
Runs on LTE so no WiFi drama at the cabin. Finally sleepin easy.
symphony choice is magic lets both ACs run without tripping love it .
good heater does what it says aint rocket science.
I love how quiet the switch is no buzz at all. Five stars.
wish the InfoHub module was included had to buy separate otherwise unit is perfect for the farm
Installation was smooth, footprint small, neighbors barely hear it.
install was a breeze twenty minutes tops and i am no electrician
We used a smaller generator thanks to this manager. Bills and fuel look better.
Ran my heat pump pool pump and lights at same time no sweat wow
does the job real nice
Plugged to natural gas no refuel hassle ran the whole AC plus fridge sweet deal
install was easy for my electrician and it just works
solid box, weatherproof like they said no drama, just power.
Great machine only wish the app was standard gotta buy the module
Install was smooth remote monitoring extra but worth it
good machine runs whole house fine just wish the wifi kit came in box had to order separate
Hooked to my A/C in ten minutes and it’s been flawless since.
Swap was done in 90 min kept my old switch super happy
Hooked it up in one afternoon smooth as butter runs both my panels no sweat
kicks on fast lights never flicker
solid 5 stars runs smooth n quiet dont worry bout outages no more
Flipped to generator power in seconds last storm. Exactly what I needed
Have a question about Briggs & Stratton Standard SED Transfer Switch, 150A, NEMA 3R? Feel free to ask!
Specification
| Manufacturer | Briggs & Stratton |
| Manufacturer Part # | 071250 |
| Delivery Time | 5-7 business days |
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Briggs & Stratton 50 A NEMA 4 Low Voltage Module for Symphony II Transfer Switch
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About product
The Briggs & Stratton Standard SED Transfer Switch delivers safe, code-compliant switching between utility and generator power. Rated at 150 A and housed in a rugged NEMA 3R enclosure, it combines a service-entrance disconnect (SED) with a dependable automatic transfer mechanism — streamlining installation and protecting your mid-size home or light commercial site during outages.
- 150 A service-entrance rated (SED) transfer switch
- Single-phase 120/240 VAC, 2-pole design
- NEMA 3R outdoor-rated galvannealed-steel enclosure (rain- & corrosion-resistant)
- 22 kA breaker withstand rating helps protect downstream equipment
- Separates utility and generator sources to prevent back-feed
- Works with Briggs & Stratton standby generators and most comparable 120/240 V units
- Brown-out sensing and break-before-make action for smooth transfers
- UL 1008 listed / cUL certified (meets national electrical codes)
Seamless, automatic protection
If utility power fails, the switch senses the outage and transfers selected loads to generator power — then seamlessly returns to the grid once it’s stable again. Your essential circuits stay online without manual intervention.
Service-entrance convenience in one box
The integrated SED provides an NEC-compliant main disconnect and transfer switch in a single enclosure. That simplifies wiring, reduces install time, and keeps inspectors happy.
Built to brave the elements
A weatherproof NEMA 3R cabinet mounts outdoors right next to your meter or generator. Powder-coated steel and gasketed doors keep moisture and debris out, ensuring long-term reliability.
Installer-friendly layout
Roomy wiring space, pre-drilled knockouts, and clearly marked lugs help electricians finish faster. Neutral and ground bars come pre-installed for a clean, organized hookup.
Electrical Ratings
Amperage: 150 A • Voltage/Phase: 120/240 VAC, 1φ • Poles: 2 • Enclosure: NEMA 3R • Listing: UL 1008
Size
30.1" × 14.5" × 7.0"
Weight
49 lb
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Briggs & Stratton 50 A NEMA 4 Low Voltage Module for Symphony II Transfer Switch
Delivery on Aug 18–21
Authorized Briggs & Stratton Distributor
- 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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