Hitachi SJ300-037HFE 사용자 설명서
xiv
Circuit Breaker
and Fuse Sizes
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.
with 600V rating, or UL Listed fuses as shown in the table below.
Wire Connectors
WARNING: Field wiring connections must
be made by a UL Listed and CSA Certified
ring lug terminal connector sized for the
wire gauge being used. The connector must
be fixed using the crimping tool specified by
the connector manufacturer.
be made by a UL Listed and CSA Certified
ring lug terminal connector sized for the
wire gauge being used. The connector must
be fixed using the crimping tool specified by
the connector manufacturer.
Motor Overload
Protection
Protection
Hitachi SJ300 inverters provide solid state motor overload protection, which depends on the
proper setting of the following parameters:
proper setting of the following parameters:
• B012 “electronic overload protection”
• B212 “electronic overload protection, 2nd motor”
• B312 “electronic overload protection, 3rd 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.
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.
by the electronic overload protection. Install an external thermal relay on each motor.
Input
Voltage
Motor
Output
200V
Inverter Model
Circuit
Breaker
(A)
Fuse
(A)
Input
Voltage
Motor
Output
400V
Inverter Model
Circuit
Breaker
(A)
Fuse
(A)
HP
kW
HP
kW
200V
1/2
0.4
SJ300-004LFU
10
10
400V
1
0.75
SJ300-007HFU/E
10
10
1
0.75
SJ300-007LFU
10
10
2
1.5
SJ300-015HFU/E
10
10
2
1.5
SJ300-015LFU
10
10
3
2.2
SJ300-022HFU/E
10
10
3
2.2
SJ300-022LFU
15
15
5
4.0
SJ300-040HFU/E
15
15
5
3.7
SJ300-037LFU
20
20
7.5
5.5
SJ300-055HFU/E
15
15
7.5
5.5
SJ300-055LFU
30
30
10
7.5
SJ300-075HFU/E
20
20
10
7.5
SJ300-075LFU
40
40
15
11
SJ300-110HFU/E
30
30
15
11
SJ300-110LFU
60
60
20
15
SJ300-150HFU/E
40
40
20
15
SJ300-150LFU
80
80
25
18.5
SJ300-185HFU/E
50
50
25
18.5
SJ300-185LFU
100
100
30
22
SJ300-220HFU/E
60
60
30
22
SJ300-220LFU
125
125
40
30
SJ300-300HFU/E
70
70
40
30
SJ300-300LFU
150
150
50
37
SJ300-370HFU/E
90
90
50
37
SJ300-370LFU
175
175
60
45
SJ300-450HFU/E
125
125
60
45
SJ300-450LFU
225
225
75
55
SJ300-550HFU/E
125
125
75
55
SJ300-550LFU
250
250
100
75
SJ300-750HFU/E
—
175
125
90
SJ300-900HFU/E
—
200
150
110
SJ300-110HFU/E
—
250
175
132
SJ300-1320HFE
—
300
200
150
SJ300-1500HFU
—
300
Terminal (ring lug)
Cable support
Cable