Powell Industries, Inc. engages in the development, design, manufacturing, and provision of services for custom-engineered products and systems. The firm's principal products include integrated power control room substations (PCRs), custom-engineered modules, electrical houses (E-Houses), traditional and arc-resistant distribution switchgear and control gear, medium-voltage circuit breakers, monitoring and control communications systems, motor control centers, switches and bus duct systems. These products are designed for application voltages ranging from 480 volts to 38,000 volts. The company serves oil and gas and petrochemical markets, the electric utility market, commercial and other industrial markets. The company also provides products and services to the light rail traction power market and other markets that include universities and government entities.