Data Centers
Switchgear, transfer, distribution, and controls for critical data center power infrastructure.
U.S. Switchgear Manufacturer
Low and Medium Voltage Switchgear
Built for critical applications.
APT manufactures switchgear, switchboards, and power systems. Established product designs, configured for your application.
Designed & Manufactured in Lafayette, Indiana
- Application-Focused Engineering
- Vertically Integrated Manufacturing
- Project Support
- U.S. Manufacturer
Find the Right Equipment
Switchgear & Power System Products
Explore products for power distribution, transfer, and generation.
Medium-Voltage Metal-Enclosed Switchgear
Vacuum circuit breaker-based
Low-Voltage Switchboards & Switchgear
Power distribution for your application
Unit Substations
Integrated power equipment
Generator Paralleling & Transfer Systems
Power transfer & generator controls
Generator & Load Bank Quick Connection
Temporary & backup power connections
E-Houses
Factory-integrated electrical houses
Made in Lafayette, Indiana, USA Across Our Manufacturing Facilities
Designed and manufactured at our facilities in Lafayette, Indiana, APT power solutions are built with a commitment to quality, precision, and dependable performance.
About APT
Featured Products
Featured Switchgear and
Power Solutions for Every Application
Switchgear Capabilities
Low- and Medium-Voltage Switchgear Solutions
APT manufactures switchgear for power distribution, transfer, generator paralleling, protection, and control applications, configured around project-specific requirements.
208 V–690 V
Low Voltage
2.4 kV–38 kV
Medium Voltage
50 / 60 Hz
Paralleling Systems
NEMA 1 & 3R
Indoor & Outdoor
Industries We Serve
Built for Critical Infrastructure
APT power systems support critical applications where reliability, flexibility, and project-specific equipment requirements matter.
Utilities & Grid Infrastructure
Distribution, interconnection, transfer, protection, and backup-power switchgear.
Manufacturing & Industrial
Custom switchgear and distribution equipment for plants and industrial processes.
Water & Wastewater
Low- and medium-voltage switchgear for treatment, pumping, and continuous-process facilities.
Renewable & Distributed Energy
Switchgear and controls for renewable generation, microgrids, and energy storage.
Mining, Oil & Gas
Rugged power systems for mining, drilling, and demanding field applications.