Danfoss VLT Series Design Manual page 73

VLT ® HVAC Drive Design Guide
Frame size
Backplate
With
plate
Distance
mount. holes
Backplate
With one C option
With two C options
Distance between
mount. holes
Without option A/B
With option A/B
Without option A/B
With option A/B
Diameter ø
Diameter ø
Mechanical dimensions
B1
7.5-15 hp [5.5-11
200-240 V
kW]
380-480 V
15-25 hp [11-18.5
525-600 V
kW]
IP 21/ 55/66
NEMA Type 1/12
Height
A 18.9 in [480 mm]
de-coupling
A -
between
a 17.9 in [454 mm]
Width
B 9.5 in [242 mm]
B 9.5 in [242 mm]
B 9.5 in [242 mm]
b 8.3 in [210 mm]
Depth
C 10.2 in [260 mm]
C 10.2 in [260 mm]
D -
D -
Screw holes
c 0.47 in [12 mm]
d 0.75 in [19 mm]
e 0.35 in [9 mm]
f 0.35 in [9 mm]
Max weight 50.7 lbs [23 kg]
MG.11.B4.22 - VLT ® is a registered Danfoss trademark.
B2 C1
25-30 hp [18.5-22
20 hp [15 kW]
kW]
30-40 hp [22-30
50-75 hp [37-55
kW]
kW]
21/55/66 21/55/66
Type 1/12 Type 1/12
25.6 in [650 mm] 26.8 in [680 mm]
-
24.6 in [624 mm] 25.5 in [648 mm]
9.5 in [242 mm] 12.1 in [308 mm]
9.5 in [242 mm] 12.1 in [308 mm]
9.5 in [242 mm] 12.1 in [308 mm]
8.3 in [210 mm] 10.7 in [272 mm]
10.2 in [260 mm] 12.2 in [310 mm]
10.2 in [260 mm] 12.2 in [310 mm]
- -
- -
0.47 in [12 mm] 0.47 in [12 mm]
0.75 in [19 mm] 0.75 in [19 mm]
0.35 in [9 mm] 0.39 in [9.8 mm]
0.35 in [9 mm] 0.69 in [17.6 mm]
59.5 lbs [27 kg] 94.8 lbs [43 kg]
3. VLT HVAC Selection
C2
40-60 hp [30-45
kW]
100-125 hp [75-90
kW]
21/55/66
Type 1/12
30.3 in [770 mm]
29.1 in [739 mm]
14.6 in [370 mm]
14.6 in [370 mm]
14.6 in [370 mm]
13.2 in [334 mm]
13.2 in [335 mm]
13.2 in [335 mm]
-
-
0.47 in [12 mm]
0.75 in [19 mm]
0.39 in [9.8 mm]
0.71 in [18 mm]
134.5 lbs [61 kg]
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