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Circuit Breaker and Fuse Sizes
The inverter’s connections to input power must include UL Listed inverse time circuit
breakers with 600V rating, or UL Listed fuses as shown in the table below.
Input
Voltage
Inverter Model Circuit Breaker / Fuse Ratings (A)
X200-002SFEF/NFU
X200-004SFEF/NFU
X200-005SFEF
10
X200-007SFEF/NFU
X200-011SFEF
15
X200-015SFEF/NFU 20
X200-022SFEF/NFU
X200-037LFU
30
X200-055LFU 40
Single/
Three-
Phase
200V
X200-075LFU
Inverse time circuit Breaker
50
X200-004HFEF/HFU 3
X200-007HFEF/HFU 6
X200-015HFEF/HFU
X200-022HFEF/HFU
10
X200-030HFEF
X200-040HFEF/HFU
15
X200-055HFEF/HFU 20
Three-
Phase
400V
X200-075HFEF/HFU
Distribution Fuse (Class J)
25
Motor Overload Protection
Hitachi X200 inverters provide solid state motor overload protection, which depends on
the proper setting of the following parameters:
x B012 “electronic overload protection”
x 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.
W
ARNING: 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
xv