Wolverine Power Systems - Michigan’s Premier Generac Industrial Generator Sales and Service Dealer
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Wolverine Power Systems - Generac Industrial Distributor for generator sales, service, rentals and parts

Generac Transfer Switches for Michigan

Automatic & Manual Transfer Switches for Industrial, Commercial, and Residential Applications Throughout Michigan

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1-800-485-8068
4 locations in Michigan

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Generac industrial, commercial, residential transfer switches from Wolverine Power Systems of Michigan

Professional Transfer Switch Solutions Across Michigan

When power reliability matters most, Wolverine Power Systems offers comprehensive Generac transfer switch products throughout Michigan. As the state's premier Generac Industrial distributor, we've been protecting homes and businesses since 1997 with cutting-edge automatic and manual transfer switches designed to seamlessly manage your backup power needs.

Whether you're safeguarding a critical healthcare facility in Grand Rapids, protecting manufacturing operations in Detroit, or ensuring your family stays comfortable during winter storms in the Upper Peninsula, Generac transfer switches provide the reliable power transition you need when utility power fails.

Why Transfer Switches Matter: A transfer switch is the critical link between your utility power and backup generator. Without proper transfer switching equipment, you risk equipment damage, code violations, and most importantly—dangerous backfeeding that can harm utility workers. That's why choosing the right transfer switch and professional installation is essential for any backup power system in Michigan.

Complete Range of Generac Transfer Switches

We understand that every application has unique requirements. That's why Wolverine Power Systems offers Generac's full line of transfer switches, from compact residential units to robust industrial systems capable of handling 5,000 amps. Each switch features silver composite contacts that resist pitting and burning, ensuring longer service life and the reliability Michigan businesses and homeowners expect when winter storms knock out power across the Great Lakes region.

Generac TX Series 301 and 611 transfer switches from Wolverine Power Systems of Michigan
TX Series 301 & 611 Switches
  • 100-1600 Amp capacity
  • Service entrance rated options
  • Open and closed transition
  • Perfect for commercial facilities
  • Ideal for Michigan retail stores
Generac TX Series 301 and 611 transfer switches from Wolverine Power Systems of Michigan
TX Series 671 Switches
  • 1000 Amp non-SE rated
  • Closed transition capability
  • Industrial-grade reliability
  • Designed for demanding loads
  • Common in Michigan manufacturing
Generac PSTS double throw automatic transfer switches from Wolverine Power Systems of Michigan
PSTS Power Series Switch
  • 100-5000 Amp range
  • Service entrance rated options
  • Bypass isolation options
  • Critical power applications
  • Hospitals & data centers statewide

Compliance and Certifications

All Generac transfer switches we install meet or exceed National Electrical Code (NEC) requirements and are rated for full load transfers in critical operating systems, emergency systems, legally required standby systems, and optional standby systems. They're ISO 9000 certified, demonstrating Generac's commitment to consistent quality manufacturing processes. This certification matters because it ensures every switch is built to exacting standards, regardless of when or where it was manufactured.

Transfer Switch Applications Throughout Michigan Michigan

Industrial Facilities
Manufacturing plants, processing facilities, and warehouses across Michigan rely on our heavy-duty transfer switches to protect operations and prevent costly downtime during outages.
Commercial / Municipal Buildings
From office complexes in Lansing to retail centers in Grand Rapids, our transfer switches keep businesses operational when power fails, protecting revenue and customer satisfaction.
Healthcare Facilities
Hospitals, clinics, and medical offices throughout Michigan depend on life-safety systems that meet strict NEC requirements for emergency power, legally required standby, and critical operating systems.
Residential Homes
Michigan homeowners trust our residential transfer switches to automatically protect their families during severe weather, keeping heating, refrigeration, and essential appliances running smoothly.

Service Entrance Rated vs. Non-Service Entrance Rated

Understanding the difference between service entrance (SE) rated and non-service entrance transfer switches is crucial for proper system design. Service entrance rated switches are installed between the utility meter and your main electrical panel, protecting your entire facility with a single transfer point. These switches must meet more stringent requirements because they handle the full service current before any circuit protection.

Non-service entrance rated switches install downstream of your main breaker, typically protecting specific loads or sub-panels. They're often more cost-effective for applications where you don't need to transfer your entire electrical load. Our experienced team will recommend the right configuration for your Michigan facility based on your critical loads, budget, and future expansion plans.

Open Transition vs. Closed Transition Transfer Switches

The switching technology in your transfer switch significantly impacts system performance and capabilities. Open transition switches momentarily disconnect from both power sources during transfer—a brief "make-before-break" operation lasting typically less than 100 milliseconds. This traditional approach works well for most applications and prevents the possibility of paralleling sources not designed to work together.

Closed transition switches, also called delayed transition switches, briefly parallel the utility and generator before transferring. This "break-before-make" operation allows for seamless power transfer without any interruption, making them essential for sensitive electronic equipment, data centers, and medical facilities across Michigan. Additionally, closed transition switches enable features like load testing under real conditions and generator soft-loading, which can extend equipment life and improve overall system reliability

Bypass Isolation Transfer Switches

For critical facilities that absolutely cannot experience downtime, bypass isolation transfer switches provide an additional layer of redundancy. These sophisticated systems incorporate an integrated bypass mechanism that allows the transfer switch to be completely isolated for maintenance, testing, or repairs while maintaining power to your facility. This means technicians can service the switch without scheduling a shutdown—crucial for hospitals, data centers, and 24/7 manufacturing operations throughout Michigan.

While bypass isolation switches represent a higher initial investment, they deliver exceptional value for mission-critical applications where even planned downtime carries significant costs or safety implications. Our team helps you evaluate whether this advanced protection level makes sense for your specific operation.

Generac PSTS bypass isolation automatic transfer switches from Wolverine Power Systems of Michigan

Comprehensive Transfer Switch Services

Wolverine Power Systems provides complete transfer switch services throughout Michigan, ensuring your backup power system operates flawlessly when you need it most. Beyond expert installation, we offer preventive maintenance programs designed to identify potential issues before they cause failures. Our technicians perform comprehensive inspections, cleaning, testing, and adjustments according to manufacturer specifications and NFPA 110 standards.

When problems do arise, our 24/7 emergency service team responds quickly anywhere in Michigan. We maintain an extensive inventory of genuine Generac parts at our four locations, minimizing repair times and getting your system back online fast. We also perform load bank testing to verify your transfer switch and generator can handle your critical loads under actual operating conditions—something building inspectors and insurance companies increasingly require.

Zeeland, MI

West Michigan, HQ
3229 80th Avenue
Zeeland, Michigan 49464

Open Weekdays
7:30am–5:00pm
Phone: 616-879-0040
Services

Full sales, service, parts, and rentals. Authorized Generac generator training center.

Service Area
West Michigan, Grand Rapids Metro, Kalamazoo, Holland, Muskegon, and beyond

Wixom, MI

Southeast Michigan
46968 Liberty Drive
Wixom, Michigan 48393

Open Weekdays
7:30am–5:00pm
Phone: 248-960-0360
Services

Complete generator sales, service, parts, and rentals

Service Area
Detroit Metro, Ann Arbor, Lansing, Flint, Oakland County, Livingston County, and beyond

Gaylord, MI

Northern Michigan
615 Expressway Court,
Gaylord, Michigan 49735

Open Weekdays
7:30am–5:00pm
Phone: 989-705-8000
Services

Complete generator sales, service, parts, and rentals

Service Area
Northern Lower Peninsula, Traverse City, Petoskey, Cadillac, Alpena, Gaylord, Grayling, Houghton Lake, and beyond

Marquette, MI

Upper Peninsula
308 M553
Marquette, Michigan 49855

Open Weekdays
8:00am–5:00pm
Phone: 906-662-4566
Services

Generator sales & outdoor power equipment sales, service, parts, rentals, small engine repair for UP customers. 

Service Area
Entire Upper Peninsula, Escanaba, Iron Mountain, Sault Ste. Marie, Houghton, and beyond

Frequently Asked Generator Rental Questions

Transfer switch sizing depends on your total electrical load and which circuits you need to protect. For residential applications, most homes require switches between 100-400 amps. Commercial and industrial facilities might need anywhere from 400 to 5,000 amps depending on their size and critical loads. Our team performs detailed load calculations during the site assessment, considering both current needs and potential future expansion. We also factor in whether you're protecting your entire facility or just critical loads.

Absolutely. While transfer switches are highly reliable, they contain mechanical and electrical components that benefit from annual inspections and maintenance. We recommend yearly service that includes inspecting all electrical connections, cleaning contacts, testing automatic operation, verifying control circuits, and checking enclosure seals. This preventive approach catches small issues before they become emergency repairs, especially important given Michigan's harsh winter conditions that can stress outdoor equipment. Many of our commercial clients also perform quarterly exercise tests to ensure system readiness.

Most Generac automatic transfer switches detect a power outage within seconds and signal the generator to start. Once the generator reaches proper operating speed and voltage (typically 10-30 seconds), the switch automatically transfers the load. Total time from outage to restored power is usually under a minute for most systems. For ultra-sensitive applications, we can design systems with uninterruptible power supplies (UPS) that provide instantaneous backup while the generator comes online.

Yes, transfer switch upgrades are common as Michigan businesses expand or add critical equipment. However, this typically involves replacing the entire switch rather than modifying the existing one, since transfer switches are not designed to be field-upgraded. The good news is that if your generator has adequate capacity, upgrading just the transfer switch is usually straightforward. We'll assess your current system, determine the right size for your expanded needs, and handle the complete installation with minimal disruption to your operations.

24/7 Emergency Transfer Switch Service

Generator or transfer switch not working? Our emergency service team is available 24/7/365 throughout Michigan. We understand that backup power emergencies don't wait for business hours, which is why we maintain round-the-clock coverage with factory-trained technicians ready to respond. Call 800-485-8068 anytime for immediate assistance.

Other Generac Transfer Switches

Generac whole house automatic transfer switches from Wolverine Power Systems of Michigan

Generac Whole House Automatic Transfer Switch

What is it for and how does it work?

An automatic transfer switch (ATS) is a “smart” switch that is used to sense when utility power has been lost. When the ATS detects a power outage, within seconds, will automatically transfer the power source from the lost utility power, to start and use the home generator for power. Once the main utility power is restored, the ATS will again detect the main power source is back on, then automatically switch back to utility power and turn off the generator.

  • RXS Series Transfer Switch
    • 100 Amp – 400 Amp Spec Sheet
    • 600 Amp – 800 Amp Spec Sheet
  • RTS Series Transfer Switch
    • 100 Amp – 200 Amp Spec Sheet
    • 100 Amp – 800 Amp Spec Sheet
    • 600 Amp – 800 Amp Spec Sheet
  • GenReady Whole House Transfer Switch
    • 100 Amp – 200 Amp Spec Sheet
    • 200 Amp Spec Sheet
Generac manual transfer switches from Wolverine Power Systems of Michigan

Manual Transfer Switch

A manual transfer switch eliminates the need for extension cords by allowing you to prewire up to 16 circuits. Simply start the generator, plug it in, and flip a switch to lock out the utility and transfer the load to the generator.

  • Protects up to 16 circuits (16 kW model)
  • Breakthrough design of the 16 kW can start many 5-ton* A/C units.
  • Automatic voltage regulator is ideal for sensitive electronics
  • Electronic governor responds quickly to changing electrical loads
  • Over 3,000 hours of run time for the industry’s longest life expectancy
  • Full pressure, continuous lubrication of all vital engine parts
  • Spin-on, automotive-style oil filter for easy maintenance and prolonged engine life
  • 16-gallon fuel tank
  • Automatic idle control
  • Electric start/quick start
  • 50-amp high power outlet, twistlock plug, plus GFCI protected duplex outlets
  • 10-hour run time at 1/2 Load
  • Wheel kit and heavy-duty lifting eye
  • 13″ all-terrain tires

Ready to Protect Your Business with Reliable Backup Power?

Get a free consultation and custom quote for your commercial or industrial generator needs. Our experienced team will assess your requirements and help design the perfect power solution.

800-485-8068

Emergency generator service in Michigan by Wolverine Power Systems. All makes and models, industrial, commercial and residential, natural gas, diesel or propane

Emergency Generator Service

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1-800-485-8068

Serving all of Michigan.
Wolverine Power Systems - Michigan’s Premier Generac Industrial Generator Sales and Service Dealer