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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.
Input
Voltag e
Inverter Model
Circuit breaker /
Fuse
Ampere rating for
Fuse or Breaker
X200-002SFFE/NFU
X200-004SFFE/NFU
X200-005SFFE
10
X200-007SFFE/NFU
X200-011SFFE
15
X200-015SFFE/NFU 20
X200-022SFFE/NFU
X200-037LFU
30
X200-055LFU 40
Single/
Three-
Phase
200V
X200-075LFU
Inverse time circuit
breaker
50
X200-004HFE/HFU 3
X200-007HFE/HFU 6
X200-015HFE/HFU 10
X200-022HFE/HFU 10
X200-030HFE 15
X200-040HFE/HFU 15
X200-055HFE/HFU 20
Three-
Phase
400V
X200-075HFE/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:
• 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.
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