Single Phase Frequency Inverters are equipped with a power and an interface card as well. These Frequency Inverters can be used for a power range of up to 0. 37 kw as single-phase units in open design. These Frequency Inverters are offered in a sturdy construction that ensures optimum performance for longer period of time. Single Phase Frequency Inverters have a universal interface that provides connection for a PLC, IPC or customer-specific solution for controlling the inverter.