Prefabricated Electrical Buildings & Control Panels

Prefabricated Electrical Buildings

Wunderlich-Malec is a Power Industry leader providing Protective Relay & Control Panels, Modular Integrated Enclosures and Process Skids from its two high quality manufacturing facilities. Our professionals provide design engineering and testing to deliver fully integrated modular power distribution solutions.

Control Panels

Wunderlich-Malec engineers and technicians provide control customers with custom designed and quality-built control panels and integrated motor control centers. Our innovative panel and electrical solutions are built to meet the most stringent customer design criteria including control panels that comply with UL 508A, UL 698A, and UL 698 certification.

A large white modular building sits outdoors on gravel near power lines, with vents and equipment attached to its exterior. A bright orange traffic cone is placed at one corner under a blue sky.

A brightly lit server room with rows of white server racks on both sides, housing network equipment and cables, leading to the back of the room.

A green electrical control panel cabinet with both doors open, revealing various switches, buttons, meters, and indicator lights on the control panels inside, situated on a wooden pallet indoors.

Large electrical panels and switchboards are being assembled in a spacious industrial workshop, with various tools, wires, and boxes scattered around the workspace. Shelves and equipment are visible in the background.

Prefabricated Electrical Building Manufacturing

Winslow, Maine Fabrication Facilities

Wunderlich-Malec opened its Winslow Maine plant in September 2001 to provide Protective Relay and Control Panels for the Power market and Process Skids. In 2004 the business expanded to meet the needs of the emerging Modular Integrated Control House and Process Skid markets. Our engineering and systems integration skills provide added value to customers by designing innovative solutions that reduce costs and improve the quality of Power T&D substations.

Our Maine facility 2016 expansion is uniquely designed for Control House and Skid Manufacturing. This modern 100,000 sq. ft. manufacturing facility is designed for high-quality high-volume fabrication using the latest technologies and the facility is certified to ISO 9001:2015.

Aerial view of an industrial complex with three large gray buildings surrounded by trees, parked cars, and intersecting roads under a clear blue sky.

Maine Campus with ISO 9001:2015 Quality System

New Baldwin, 61,000 Sq.Ft. Florida Facility

Baldwin, Florida Manufacturing Facility

To meet the expanding needs of the Power Distribution industry Wunderlich-Malec expanded to Florida with a new 61,000 sq. ft. manufacturing facility in June 2025. This sustainable ultramodern site continues to support our growing presence in the Modular Electrical Control Enclosure and Skid Fabrication industry, bringing our turnkey power solutions to meet the needs of more power distribution customers.

Prefabricated Electrical Building Design & Manufacturing Capabilities

Wunderlich-Malec (WM) skilled engineers design substations from one-line diagrams and provide design services for on-site electrical power distribution systems. WM is an industry leader providing modular electrical control enclosures for major utilities and as an ENR top 200 US Engineering firm offer knowledgeable design and field-testing solutions.

Modular Integrated Control Enclosures include
- Substation Control Enclosures
- Power Distribution Control Enclosures
- Integration of DCS/PLC/VFD and other controls
- Integration of Electrical SCADA and Communications
Relay Protection & Breaker Control Panels
- Simplex, Duplex & Replacements
Skid Mounted Control Houses
Custom Process Skid design and fabrication

Wunderlich-Malec offers complete e-house capabilities where we provide electrical design, civil & structural engineering with testing & commissioning to ensure that the system meets all specific requirements.

Innovation Benefits

A significant benefit is provided by Wunderlich-Malec with cost, schedule, and quality improvements resulting from our unique innovative products and processes. Wunderlich-Malec, as an employee-owned engineering company, is committed to investing in technology that benefits its customers and builds our company’s shareholder value. The following shows some of the key innovations that provide value-added for customers on their projects.

Large warehouse interior with high ceilings, exposed beams, and two long, partially constructed modular building sections. Shelving with materials lines the walls. Workers and various equipment are visible throughout the space.

Assembly Line Process of Enclosure to work cells using 5 & 30-Ton Bridge Cranes

A large industrial module under construction in a factory, with exposed metal framing, electrical panels, and equipment. A crane and a forklift are visible in the background, along with workers and ladders.

Efficient material handling. Assembled panels being loaded into modular control house.

Learn More about Cost and Schedule Reductions with prefabricated electrical modular buildings.

Three Modern Custom Panel Shops

Wunderlich-Malec delivers quality custom integrated panels for our customers from three locations, our new modern and innovative Minnesota facility, our new Florida and Maine manufacturing plants to ensure reliable service and on schedule deliveries. We provide custom fabrication to the various industries and our offerings include:

MCC customer-based configurations
DCS / PLC / VFD Panels
Intrinsically Safe / Purged / Explosion Proof Panels
Certified UL 508 / 698A / 698 rated panels & enclosures.

Project Management, Engineering, & Testing Value Added

Wunderlich-Malec skilled automation engineers offer design services from customer’s functional requirement documents. Our client-focused project management collaborates with the customer to ensure the client expectations for schedule, quality, and functional performance achieved.

State-of-the Art Modern Machine Tools

Wunderlich-Malec as an employee-owned company invests in the latest and most advoked equipment to provide:

Employee Safety
Improved Quality
Reduced Labor
Accelerated Schedules

Experienced Control Panel Design & Quality Fabrication

Wunderlich-Malec skilled automation engineers offer design services from customer’s functional requirement documents. Our experienced project management, engineering and factory testing reduce schedule and field Commissioning costs. WM will provide fully tested panels to simulated field conditions.

A large industrial CNC machine, labeled "Perforex BC 1001 HS," stands in a factory. The machine is equipped with metal components, hoses, and a white panel being worked on. The area is clean and well-lit.

Automated Machine to Precisely Cut and Fabricated Panels

Our control-panel design experience considers both the internal and external factors that dictate the panel requirements, including:

Enclosure sizing
Environment: temperature, humidity
Heating and cooling needs
Atmosphere: corrosive, explosive
Area classification–Class I, II or III, Divisions 1 & 2
Explosion-proof enclosures
Purged enclosures.
Intrinsically safe enclosures
Agency listings: UL508A, UL698, UL698A

Learn about Wunderlich-Malec’s custom-engineered control panel solutions.

A stainless steel industrial control panel with a central touchscreen display, surrounded by labeled buttons, switches, and indicator lights for operating and monitoring filter systems, placed on a wooden pallet indoors.

A large electrical control panel with an open door showing internal wiring and components, standing on a wooden pallet indoors near a wall and a fire extinguisher.

A large gray metal cabinet with two doors and black handles stands on a wooden pallet indoors. Small labels and a warning sticker are visible on the cabinet’s upper corners and between the handles.

Six large industrial electrical control panels are aligned in two rows on wooden pallets in a clean, well-lit room with white walls and brown floors. Black doors and cables are visible in the background.

Wunderlich-Malec Manufacturing Commitments

Quality Policy

Our QUALITY POLICY is to develop, produce and deliver on time; providing products and services that achieve contract requirements and exceed customer expectations. Our Services shall be prompt, efficient and confidential, with client satisfaction our ultimate goal.

Our QUALITY POLICY is for management to provide the training and leadership to all employees in the art of Continuous Quality Improvement to reduce costs, increase value and exceed our customer’s expectations.

Our QUALITY POLICY is to involve our customer during the planning, design, and validation of our Products and Services.

Local Site Support

Wunderlich-Malec engineers and start-up technicians located in our regional offices are available to provide on-site installation, start-up, commissioning, and training.

Small Business Classification

Wunderlich-Malec offers our World Class manufacturing capabilities and is still classified as a NAICS Small Business in the following categories including:

335314 – Relay and Industrial Control Manufacturing
335313 – Switchgear and Switchboard Apparatus Manufacturing

Contact Us About Your Project

Contact us to speak with one of our knowledgeable, highly skilled team members about the specifications of your project and how we can partner to meet your engineering needs.

Prefabricated Electrical Buildings & Control Panels

Prefabricated Electrical Buildings

Control Panels