Fuse and circuit breaker sizes, Motor overload protection – Hitachi L2002 User Manual
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Fuse and Circuit Breaker Sizes
The inverter’s input power wiring must include UL Listed, dual-element, 600V fuses, or
UL Listed, inverse-time, 600V circuit breakers.
Motor Overload Protection
Hitachi L200
2
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 1.2 * 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.
Input
Voltage
Motor Output
Inverter Model
Ampere Rating for
Fuse or Breaker
kW
HP
200V
0.2 1/4
L200-002NFE(F)2/NFU2
10
0.4
1/2
L200-004NFE(F)2/NFU2
10
0.55
3/4
L200-005NFE(F)2
10
0.75
1
L200-007NFE(F)2/NFU2
15
1.1
1 1/2
L200-011NFE(F)2
15
1.5
2
L200-015NFE(F)2/NFU2
20 (single ph.)
15 (three ph.)
2.2
3
L200-022NFE(F)2/NFU2
30 (single ph.)
20 (three ph.)
3.7
5
L200-037LFU2
30
5.5
7 1/2
L200-055LFU2
40
7.5
10
L200-075LFU2
50
400V
0.4
1/2
L200-004HFE(F)2/HFU2
3
0.75
1
L200-007HFE(F)2/HFU2
6
1.5
2
L200-015HFE(F)2/HFU2
10
2.2
3
L200-022HFE(F)2/HFU2
10
3.0
4
L200-030HFE(F)2
15
4.0
5
L200-040HFE(F)2/HFU2
15
5.5
7 1/2
L200-055HFE(F)2/HFU2
20
7.5
10
L200-075HFE(F)2/HFU2
25