Table Of Contents - Hitachi SJ300 Series Instruction Manual

xiv
Fuse and Circuit
Breaker Sizes
Motor
Input
Output
Voltage
HP kW
1/2 0.4 Sj300-004Lfu
1 0.75 SJ300-007LFU
2 1.5 Sj300-015Lfu
3 2.2 Sj300-022Lfu
5 3.7 Sj300-037Lfu
7.5 5.5 SJ300-055LFU
10 7.5 SJ300-075LFU
200V 15 11 SJ300-110LFU
20 15 SJ300-150LFU
25 18.5 SJ300-185LFU
30 22 SJ300-220LFU
40 30 SJ300-300LFU
50 37 SJ300-370LFU
60 45 SJ300-450LFU
75 55 SJ300-550LFU
Wire Connectors
Motor Overload
Protection
The inverter's input power wiring must include UL Listed, dual-element, 600V fuses, or UL
Listed, inverse-time, 600V circuit breakers.
Ampere Rating
200V
for Fuse or
Inverter Model
Breaker
10
10
10
15
20
30
40
60
80
100
125
150
175
225
250
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.
Hitachi SJ300 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"
• 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.
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.
Motor
Input
Output
Voltage Inverter Model
HP kW
1 0.75 SJ300-007HFU/E
2 1.5 Sj300-015Hfu/E
3 2.2 Sj300-022Hfu/E
5 4.0 Sj300-040Hfu/E
7.5 5.5 Sj300-055Hfu/E
10 7.5 SJ300-075HFU/E
15 11 SJ300-110HFU/E
20 15 SJ300-150HFU/E
25 18.5 SJ300-185HFU/E
400V 30 22 SJ300-220HFU/E
40 30 SJ300-300HFU/E
50 37 SJ300-370HFU/E
60 45 SJ300-450HFU/E
75 55 SJ300-550HFU/E
100 75 SJ300-750HFU/E
125 90 SJ300-900HFU/E
150 110 SJ300-110HFU/E
175 132 SJ300-1320HFE
200 150 SJ300-1500HFU
Terminal (ring lug)
Ampere Rating
400V
for Fuse or
Breaker
10
10
10
15
15
20
30
40
50
60
70
90
125
125
175
200
250
300
300
Cable support
Cable