This Acti9 iTLi is a modular impulse relay.::It is a changeover contact with 1 normally open and 1 normally close contact.::Rated current is 16A, 24VAC to 250VAC operating voltage and it operates with 130VAC or 48VDC control voltage.::Electrical endurance goes up to 200000 cycles for AC-21 or 100000 cycles for AC-22.::The switching frequency is 100 switching operations/day or 5 switching operations/minute.::The duration of the command order should be between 50ms to 1s.::It is mainly used for lighting control applications.::The Ui rated insulation voltage is 440VAC.::The Uimp rated impulse withstand voltage is 6kV. The operating frequency is 50Hz or 60Hz.::It is DIN rail mountable. Pollution degree is 3. Overvoltage category is IV.::The dimensions are (W) 18mm x (H) 84mm x (D) 60mm.::The degree of protection is IP20 and IP40 in an enclosure.::The operating temperature is from -20°C to 50°C. The storage temperature is from -40°C to 70°C.::This product is compliant with IEC/EN 60669-1 and IEC/EN 60669-2-2 standard.