EM15 User’s Manual
3. Installation of Frequency Inverter
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3.3 Peripheral Devices Connection Diagram
Diagram 3-2 Peripheral Devices Connection
3.4 Instructions of Main Circuit Peripheral Devices
Table 3-1 Main circuit peripheral devices use instructions
Parts Name
Function Description
MCCB
Installation Location:
Front of input circuit
The capacity of the circuit breaker shall be 1.5 to 2 times of the rated current of the inverter.
The protect time of the circuit breaker shall fully consider the time features of the inverter
overload protection.
Residual-current
circuit breaker
(RCCB)
Installation Location:
Front of input circuit
As the inverter output is the high-frequency pulse output, there will be high-frequency leakage
current. Special leakage circuit breaker shall be used when installing leakage circuit breaker at
the input side of the inverter.
It is suggested that B type leakage circuit breaker be used, and the leakage current value shall
be set as 300mA.
