Technical data
SED2 Operation & Maintenance Manual
18 Siemens Building Technologies, Inc.
Cable Cross-Sections for Power and Motor Cables
Table 4. Cable Cross-Sections for input Voltage Range 3 AC 200V through 240V.
Output
rating
kW (hp)
Min. cross-section
of supply cable
AWG (mm
2
)
Max. cross-section
of supply cable
AWG (mm
2
)
Min. cross-section of
motor cable
AWG (mm
2
)
Max. cross-section of
motor cable
AWG (mm
2
)
0.37 (.50) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
0.55 (.75) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
0.75 (1.0) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
1.1 (1.5) 17 (1) 9 (6) 17 (1) 9 (6)
1.5 (2.0) 15 (1.5) 9 (6) 17 (1) 9 (6)
2.2 (3.0) 13 (2.5) 9 (6) 17 (1) 9 (6)
3 (4.0) 11 (4) 7 (10) 15 (1.5) 7 (10)
4 (5.0) 11 (4) 7 (10) 11 (4) 7 (10)
5.5 (7.5) 11 (4) 7 (10) 11 (4) 7 (10)
7.5 (10) 7 (10) 2 (35) 7 (10) 2 (35)
11 (15) 5 (16) 2 (35) 16 (5) 2 (35)
15 (20) 5 (16) 2 (35) 5 (16) 2 (35)
18.5 (25) 3 (25) 2 (35) 5 (16) 2 (35)
22 (30) 2 (35) 2 (35) 2 (35) 2 (35)
30 (40) 0 (50) -5 (150) 0 (50) -5 (150)
37 (50) -2 (70) -5 (150) -2 (70) -5 (150)
45 (60) -2 (70) -5 (150) -3 (95) -5 (150)
Table 5. Cable Cross-Sections for input Voltage Range 3 AC 380V through 480V.
Output
rating
kW
Min. cross-section
of supply cable
AWG (mm
2
)
Max. cross-section
of supply cable
AWG (mm
2
)
Min. cross-section of
motor cable
AWG (mm
2
)
Max. cross-section of
motor cable
AWG (mm
2
)
0.37 (.50) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
0.55 (.75) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
0.75 (1.0) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
1.1 (1.5) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
1.5 (2.0) 17 (1) 13 (2.5) 17 (1) 13 (2.5)
2.2 (3.0) 17 (1) 9 (6) 17 (1) 9 (6)
3 (4.0) 17 (1) 9 (6) 17 (1) 9 (6)
4 (5.0) 17 (1) 9 (6) 17 (1) 9 (6)
5.5 (7.5) 13 (2.5) 7 (10) 13 (2.5) 7 (10)
7.5 (10) 11 (4) 7 (10) 11 (4) 7 (10)










