HEATER SYSTEM OF ELECTRIC CONSTRUCTION MACHINE

A heater system of an electric construction machine according to various embodiments of the present invention is a heater system of an electric construction machine which includes: a hydraulic pump driven by an electric motor; and a main control valve for supplying at least one actuator with working fluid ejected from the hydraulic pump, and the heater system includes: a heater core which is located downstream of the actuator and through which the working fluid passes; and a switching valve for selectively supplying the heater core with the working fluid, wherein a heated air may be supplied to a cabin through the heater core by using the heat of the working fluid.