Electric air heater NK…U

wall-mounted

Duct electric heater with temperature controller or control unit. Duct electrical heaters are designed for supply air heating in round duct ventilating system. The heaters are applied in heating, ventilation and air conditioning systems for various premises. The casing and the terminal box are made of galvanized steel and the heating elements are of stainless steel. The heaters are equipped with rubber seals for connection to the air ducts. NK duct heaters are equipped with two overheating protection thermostats: basic protection with automatic restart with +50 °С operating temperature. After cooling the thermostat closes the control circuit of the heater automatically. emergency protection with manual restart (operating temperature +90 °С). In case of response the power supply to the heater is allowed after the manual emergency reset only. the thermostat contacts are located in the terminal box for external connection. Each standard size has several electric capacity options. The higher capacity can be attained by means of installation of the heaters in series. All the three phase heaters have star connection. The NK heaters are available in modifications NK...U with a temperature controller for the heaters with power demand from 0.6 up to 2.4 kW or with a control unit for the heaters with power demand from 3.0 up to 9.0 kW to maintain set air temperature in the air duct. NK…U duct heater with a temperature controller, power demand from 0.6 up to 2.4 kW