Prefabricated Switchgear Buildings for High-Demand Industrial Power
Engineered for Speed. Built for Mission-Critical Reliability.
At IEP, we specialize in designing and manufacturing Prefabricated Switchgear Buildings — also known as E-Houses — engineered for rapid deployment, maximum protection, and seamless integration in complex power environments. Each unit is factory-integrated, pre-tested, and fully equipped to house low- or medium-voltage switchgear, motor control, protection relays, SCADA panels, HVAC, and more — all pre-wired and delivered ready for installation.
Whether you’re managing a remote oilfield, upgrading a utility substation, or powering a critical treatment plant, our prefabricated buildings reduce lead times, simplify installation, and deliver safe, code-compliant infrastructure — built to your voltage class, layout, and site requirements.
What Is a Prefabricated Switchgear Building?
Medium-voltage switchgear: A prefabricated switchgear building, or E-House, is a complete, factory-built electrical room designed to protect and distribute power reliably in industrial settings. Each building houses your switchgear, controls, protection systems, and environmental management — all fully integrated and tested before it reaches your site..
Unlike traditional site-built electrical rooms, E-Houses are engineered off-site to your one-line diagram, utility specs, and application demands, ensuring fewer coordination issues, reduced site labor, and faster commissioning. Every unit ships AHJ-ready with full documentation and compliance.
Why IEP?
We go beyond simply assembling metal boxes. IEP delivers complete, engineered switchgear infrastructure solutions, designed from the ground up to serve your voltage class, site layout, and performance requirements.
What Makes Our Buildings Different:
- Factory-Integrated Systems: Gear, busbars, HVAC, lighting, fire suppression — all wired, mounted, and tested before delivery.
- Built to Spec: Every unit is derived from your schematics, protection requirements, and working clearances.
- Standards-Compliant: UL 891/508A, UL 1558, ANSI C37, NEC Article 110, NEMA enclosures.
- Faster Commissioning: Pretested systems reduce site setup by weeks.
- Engineered Support: We coordinate directly with your EPC or engineering team from kickoff through delivery.
- Flexible Mounting: Skid-mount, crane-lift, modular pad, or pier support available.
Technical Partnership from Start to Finish
We collaborate closely with project engineers, EPCs, OEMs, and plant operators to deliver end-to-end support—from system design through commissioning. All gear is QA-tested, documented, and supported by U.S.-based engineering professionals.
Talk to an Expert Engineer — Get Instant Support Now!
Types of Prefabricated Switchgear Buildings
We offer a full range of prefabricated switchgear enclosures engineered to match the environment, voltage class, installation method, and future scalability of your project
Walk-In Switchgear Enclosures
Engineered steel buildings with internal access for operations and maintenance. Ideal for substations, water plants, and processing facilities.
- Voltage: 480V – 15kV
- Options: Climate control, arc flash zones, fire-rated interiors .
Skid-Mounted Power Buildings
Fully integrated buildings mounted on heavy-duty steel skids for lift-and-drop deployment.
- Ideal for: Remote oilfields, modular job sites, emergency power restoration
- Built to: Class I Div 2, NEC, NEMA standards
. Containerized Switchgear Rooms
ISO-based modular containers retrofitted to house complete electrical enclosures and control systems.
- Best for: Global transport, offshore applications, or rugged terrain
- Features: Weather-sealed, corrosion-protected, shock-rated
Multi-Room Modular Facilities
Segmented buildings designed for complex systems: MCCs, VFDs, SCADA, battery storage, and motor controls.
- Designed for: Segmentation, redundancy, and expansion
- Voltage support: Up to 38kV with zoning and safety partitions .
Talk to an Expert Engineer — Get Instant Support Now!
Industries We Power
Our prefabricated switchgear buildings are operating in some of the most demanding industrial environments across North America. Every enclosure is tailored to your operational risks, voltage requirements, and environmental constraints.
Talk to an Expert Engineer — Get Instant Support Now!
Delivering Smarter Power Infrastructure
At IEP, our prefabricated switchgear buildings are more than just electrical enclosures — they’re precision-built, code-compliant, and ready to support modern power infrastructure. Whether you’re deploying to a remote site, upgrading a utility substation, or building out critical power redundancy, our engineered systems help you stay on schedule, on budget, and fully compliant
Talk to an Expert Engineer — Get Instant Support Now!
Frequently Asked Question’s
Do your switchgear buildings carry UL certification?
We deliver buildings with UL-listed switchgear (UL 891/508A for low voltage, UL 1558/ANSI C37 for medium voltage), all labeled, documented, and AHJ-ready.
Can you integrate my specified switchgear or SCADA equipment?
We integrate both in-house and owner-furnished gear — breakers, PLCs, relays, UPS, and custom SCADA packages.
What sizes and configurations do you support?
From compact 12′ MCC rooms to multi-unit 60′ modular buildings, we custom-design around your site and lifting logistics. NEC and ANSI clearances are observed.
How is QA and FAT testing handled?
Each structure undergoes full Factory Acceptance Testing (FAT): insulation resistance, relay function, wiring integrity, breaker coordination, labeling, and thermal checks.
What is your standard production lead time?
Standard builds deliver in 6–10 weeks. Repeat layouts and expedited projects can ship faster, depending on gear and spec complexity.
Have a Question? Get in Touch
Talk to an Expert Engineer — Get Instant Support Now!