The Belimo TFB120-S Damper Actuator is a corded electric device designed for HVAC systems. With a power source of 120/240V and a frequency of 50/60Hz, this actuator is suitable for various applications. Made of plastic, it features a direct mount design for easy installation. The Belimo brand ensures reliability and quality, making this model a dependable choice for controlling dampers in heating, ventilation, and air conditioning systems. Used for about a year before I changed to a different damper system. This worked great before removal.