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SJ300 Inverter
Getting Started
1–7
Tables for 400V
class inverters
Note that “General Specifications” on page 1–9 covers all SJ300 inverters, followed by
footnotes for all specifications tables. The 400V models in the upper table below (1 to 15 hp)
include internal dynamic braking units (see “
Dynamic Braking” on page 5–6).
Item 400V Class Specifications
SJ300 inverters,
400V models
U.S. version 007HFU 015HFU 022HFU 040HFU 055HFU 075HFU 110HFU
European ver. 007HFE 015HFE 022HFE 040HFE 055HFE 075HFE 110HFE
Applicable motor size *2 HP12357.51015
kW 0.75 1.5 2.2 4.0 5.5 7.5 11
Rated capacity (400 / 480V) kVA 1.7 / 2.0 2.6 / 3.1 3.6 / 4.4 5.9 / 7.1 8.3 / 9.9 11 / 13.3 15.9/19.1
Rated input voltage 3-phase (3-wire) 380 to 480V ±10%, 50/60 Hz ±5%
Rated input current (A) 2.8 4.2 5.8 9.5 13 18 25
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 2.5 3.8 5.3 8.6 12 16 23
Efficiency at 100% rated output, % 89.5 92.3 93.2 94.0 94.4 94.6 94.8
Watt loss,
approximate (W)
at 70% output 76 102 127 179 242 312 435
at 100% output 88 125 160 235 325 425 600
Starting torque *6 200% at 0.5 Hz (SLV), 150% at around 0 Hz (SLV, 0 Hz domain,
with motor one frame size down), 100% at 0 Hz (with feedback board)
Dynamic braking
approx. % torque,
short time stop *7
internal res. only 50% 20% 10%
with external res. 200% 140% 100% 70%
DC braking Variable operating frequency, time, and braking force
Weight kg / lb 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 5 / 11 5 / 11
Item 400V Class Specifications
SJ300 inverters,
400V models
U.S. version 150HFU 185HFU 220HFU 300HFU 370HFU 450HFU 550HFU
European ver. 150HFE 185HFE 220HFE 300HFE 370HFE 450HFE 550HFE
Applicable motor size *2 HP 20 25 30 40 50 60 75
kW1518.52230374555
Rated capacity (400 / 480V) kVA 22.1 / 26.6 26.3 / 31.5 33.2 / 39.9 40.1 / 48.2 51.9 / 62.3 62.3 / 74.8 76.2/91.4
Rated input voltage 3-phase (3-wire) 380 to 480V ±10%, 50/60 Hz ±5%
Rated input current (A) 35 42 53 64 83 99 121
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 323848587590110
Efficiency at 100% rated output, % 94.9 95.0 95.0 95.1 95.1 95.1 95.1
Watt loss,
approximate (W)
at 70% output 575 698 820 1100 1345 1625 1975
at 100% output 800 975 1150 1550 1900 2300 2800
Starting torque *6 200% at 0.5 Hz (SLV), 150% at around 0 Hz (SLV, 0 Hz domain,
with motor one frame size down), 100% at 0 Hz (with feedback board)
Dynamic braking
approx. % torque,
short time stop *7
w/o braking unit 10%
with braking unit 40–200% 40–200% 35–200% 110–170% 90–150% 70–120% 60–100%
DC braking Variable operating frequency, time, and braking force
Weight kg / lb 12 / 26.4 12 / 26.4 12 / 26.4 20 / 44 30 / 66 30 / 66 50 / 110