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Circuit Breaker and Fuse Sizes
The inverter’s connections to input power for 400V class units must include UL Listed
inverse time circuit breakers with 600V rating, or UL Listed fuses as shown in the table
below.
Motor Output
Input
Voltage
kW HP
Inverter Model
Fuse (A)
(UL-rated class J, 600V)
0.4 1/2 X200-004HFE/HFU 3
0.75 1 X200-007HFE/HFU 6
1.5 2 X200-015HFE/HFU 10
2.2 3 X200-022HFE/HFU 10
3.0 4 X200-030HFE 15
4.0 5 X200-040HFE/HFU 15
Three-
Phase
400V
Motor Overload Protection
Hitachi X200 inverters provide solid state motor overload protection, which depends on
the proper setting of the following parameters:
B012 “electronic overload protection”
B212 “electronic overload protection, 2nd motor”
Set the rated current [Amperes] of the motor(s) with the above parameters. The setting
range is 0.2 * rated current to 1.0 * rated current.
WARNING: When two or more motors are connected to the inverter, they cannot be
protected by the electronic overload protection. Install an external thermal relay on
each motor.
xv