Siemens ST950 Plus+ - Page 32

ST950 Plus+ User Manual
ST950 Plus+ User Manual
Page 32 of 176
667/HE/53000/000
Issue 2
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Figure 15 : Master Switch Unit – Hi-Load
The selection of Standard or Hi-Load will depend on the controller loading. However, the selection
of the MSP is automatically made by the Plus
+
Design Layout Tool. For information the decision is
based on Table 1 below.
Number
of CICs
Number
of PSUs
MSP type
Cabinet
power (max)
Total junction
power (max)
5
Number of
passive safety
outputs in
Junction (max)
1
2
Standard
0.6kW
0.6kW
12
1
3
Standard
1kW
1kW
12
2
4
Standard
1kW
1kW
24
2
5
Hi-Load
1.4kW
1.4kW
24
2
6
Hi-Load
1.7kW
1.7kW
24
3
6
Hi-Load
1.7kW
1.7kW
36
Table 1 : MSP Selection Criterion
5
Excluding Aux equipment
Master Fuse 32A
MCB 16C