Damper Actuator; Type On/Off, Floating Point; Operation Type Non-Spring Return; Voltage Rating 24 Volt AC/DC; Maximum AC Voltage 24 Volt; Maximum DC Voltage 24 Volt; Frequency Rating 50/60 Hertz; Power Rating 1 Watt (Running); Angle of Rotation 90 Degree; Enclosure NEMA 1, IP40; Operating Temperature -22 to 122 Deg F; Approval UL (Canada and US), UL 60730, CE, CAN/CSA E60730; Applicable Standard ISO 9001