Fuse and circuit breaker sizes, Motor overload protection – Hitachi L2002 User Manual

Page 16

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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

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