The PowerMaster 24-44000 CH-104 NEMA 4 Modified Operator is a robust, industrial-grade commercial door operator designed for facilities requiring weatherproof, contamination-resistant, and high-durability performance. Equipped with a 1HP, 3-phase motor, the CH-104 delivers strong torque, smooth control, and long operational life for rolling steel doors, sectional doors, and high-cycle commercial applications.
With its NEMA 4 modified enclosure, this operator is engineered to withstand water spray, humidity, dust, and corrosive elements. This makes it ideal for demanding industrial environments such as food production plants, car washes, processing facilities, outdoor structures, agricultural operations, and chemical-handling areas requiring sealed, weather-resistant controls.
Precision machining, heavy-duty gear reduction, and compatibility with advanced access control and safety systems ensure that the CH-104 performs reliably under the most challenging conditions. It supports a full accessory ecosystem including monitored photo eyes, radio controls, sensing edges, keypads, automation interfaces, and facility integration modules.
