Hitachi SJ300 Series

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The default value and the maximum value for the carrier frequency are different between J300 and SJ300.
While the maximum value of the carrier frequency is set as default in the case of the J300,
SJ300’s carrier frequency defaults to 5kHz (3kHz: 75kW to 150kW).
SJ300’s carrier frequency can be adjustable up to 15kHz (10kHz: 75kW to 150kW) with derating.
J300 carrier frequency SJ300 carrier frequency derating data
Voltage
class
200V class 400V class
Inverter
capacity
(kW)
Carrier frequency (kHz)
Inverter
capacity
(kW)
Maximum carrier
frequency without
derating（kHz）
Derating at 15kHz
(% of inverter’s rated Amps)
Maximum carrier
frequency without
derating （kHz）
Derating at 15kHz
(10kHz: 75kW to 150kW)
(% of inverter’s rated Amps)
1.5 to 15 16.0 0.4 15 100 - -
22 12.0 0.75 15 100 15 100
30 to 37 10.0 1.5 15 100 15 100
45 to 55 6.0 2.2 15 100 15 100
75 to 110 3.0 3.7 15 100 15 100
132 to 220 2.0 5.5 15 100 15 100
7.5 15 100 15 100
11 15 100 15 100
15 12 95 (60.8A or less) 15 100
18.5 8 80 (60.8A or less) 15 100
22 5 65 (61.8A or less) 10 80 (38.4A or less)
30 5 80 (96.8A or less) 10 75 (43.5A or less)
37 10 90 (130.5A or less) 10 95 (71.2A or less)
45 7 70 (127.4A or less) 10 80 (72A or less)
55 6 70 (154A or less) 6 60 (66A or less)
75
－
8 95 (141.5A or less)
90
－
6 80 (140.8A or less)
110
－
6 70 (151.9A or less)
132/150
－
3 60 (156A or less)