Siemens MICROMASTER 420 - Manual (Page 159)

Issue 07/04 5 MICROMASTER 420 specifications
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0 159
Table 5-2 Dimensions, required cooling air flow and tightening torques for power terminals
Frame
Size
Dimensions
Required cooling air
flow
Tightening torque for
power connections
mm 73 Ч 173 Ч 149 l/s 4.8 Nm 1.1
A W x H x D
inch 2.87 Ч 6.81 Ч 5.87 CFM 10.2 lbf.in 10
mm 149 Ч 202 Ч 172 l/s 24 Nm 1.5
B W x H x D
inch 5.87 Ч 7.95 Ч 6.77 CFM 51 lbf.in 13.3
mm 185 Ч 245 Ч 195 l/s 54.9 Nm 2.25
C W x H x D
inch 7.28 Ч 9.65 Ч 7.68 CFM 116.3 lbf.in 20
Table 5-3 Current reduction depending on pulse frequency
Output current in A with a switching frequency of: Mains voltage Power (CT)
[kW] 4 kHz 6 kHz 8 kHz 10 kHz 12 kHz 14 kHz 16 kHz
1/3 AC 200 V 0.12 to 5.5 Factory setting 16 kHz – no derating necessary
0.37 1.2 1.2 1.2 1.2 1.2 1.2 1.1
0.55 1.6 1.6 1.6 1.6 1.6 1.6 1.1
0.75 2.1 2.1 2.1 2.1 1.6 1.6 1.1
1.1 3.0 3.0 2.7 2.7 1.6 1.6 1.1
1.5 4.0 4.0 2.7 2.7 1.6 1.6 1.1
2.2 5.9 5.9 5.1 5.1 3.6 3.6 2.6
3.0 7.7 7.7 5.1 5.1 3.6 3.6 2.6
4.0 10.2 10.2 6.7 6.7 4.8 4.8 3.6
5.5 13.2 13.2 13.2 13.2 9.6 9.6 7.5
7.5 19.0 18.4 13.2 13.2 9.6 9.6 7.5
3 AC 400 V
11.0 26.0 26.0 17.9 17.9 13.5 13.5 10.4