- 11 -
1.3  Ratings
Table 1-1 MD500 ratings
Items Technical Data
Model: MD500TxxxGB-INT
18.5 22 30 37 45 55 75 90 110 132 160
Capacity of 
applicable motor
kW 18.5 22 30 37 45 55 75 90 110 132 160
HP 25 30 40 50 60 75 100 120 150 180 220
Input Rated input current 
(A)
49.5 59 57 69 89 106 139 164 196 240 287
Rated voltage Three-phase 380 to 480 VAC, 50/60 Hz
Rated frequency 50/60 Hz
Permissible voltage 
uctuation range
-15 to 10%, actual voltage range: 323 to 528 VAC
Permissible frequency 
uctuation range
±5%
Capacity (kVA) 45 54 52 63 81 97 127 150 179 220 263
Outputs Rated output current 
(A) 
【
1
】
37 45 60 75 91 112 150 176 210 253 304
Default carrier 
frequency (kHz)
6 6 6 5 5 4 3 3 3 3 3
Max. output voltage Three-phase 380 to 480 V
Max. output frequency 50 to 500 Hz
Carrier 
frequency
Vector 
control
2.0 to 6.0 kHz
V/F 
control
0.8 to 8.0 kHz (≤ 75 kW) 0.8 to 6.0 kHz (> 75 
kW)
De-rating Carrier frequency is automatically de-rated with temperature change. 
For carrier frequency de-rating, see the chart in 
9
.
2
 
 
D
e
-
r
a
t
i
n
g
.
Overload capacity 60 seconds for 150 % of the rated current
Power losses (kW) 0.478 0.551 0.694 0.815 1.01 1.21 1.57 1.81 2.14 2.85 3.56
【
1
】
: Current derating is required in order to raise the carrier frequency.