Installation Instructions
Table 4. Wire Sizes and Tightening Torques for Electronic Bypass System with 500V to 600V Drive.
Circuit Breaker
Disconnect
Switch
Overload Ground Lug
Part
Number
Bypass
Frame
Size
HP kW Amps
Wire
Size *
Torque,
lb-in
(Nm)
Wire
Size *
Torque,
lb-in
(Nm)
Wire
Size *
Torque,
lb-in
(Nm)
Range,
Amps
Max
Backup
Fuse,
Amps
Wire
Size*
Torque,
lb-in
(Nm)
VBE40.5---- C 0.5 0.37 .9
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
.7 - 1.0 4 14-2 35 (4)
VBE40.7---- C 0.7 0.55 1.3
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
.9 - 1.25 5 14-2 35 (4)
VBE41.0---- C 1.0 0.75 1.4
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
1.1 - 1.6 6 14-2 35 (4)
VBE41.5---- C 1.5 1.1 2.1
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
1.8 - 2.5 10 14-2 35 (4)
VBE42.0---- C 2.0 1.5 2.7
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
2.2 - 3.2 12 14-2 35 (4)
VBE43.0---- C 3.0 2.2 3.9
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
2.8 - 4 16 14-2 35 (4)
VBE45.0---- C 5.0 4.0 6.1
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
4.5 - 6.3 25 14-2 35 (4)
VBE47.5---- C 7.5 5.5 9
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
7 - 10 40 14-2 35 (4)
VBE410.---- C 10 7.5 11
14-10
Cu
32 (3.6) 18-10
13 - 17
(1.5 - 1.7)
18-14
7 - 10.3
(8 - 1.2)
9 - 2 45 14-2 35 (4)
VBE415.---- C 15 11.0 17
14-10
Cu
32 (3.6) 14-8
17 - 22
(1.9 - 2.5)
14-10
18 - 22
(2 - 2.5)
14 - 20 80 14-2 35 (4)
VBE420.---- C 20 15.0 22
10-1/0
Cu
20 - 60
(2.2 - 6.8)
14-8
17 - 22
(1.9 - 2.5)
14-10
18 - 22
(2 - 2.5)
17 - 22 80 14-2 35 (4)
VBE425.---- C 25 18.5 27
10-1/0
Cu
20 - 60
(2.2 - 6.8)
14-6
22 - 27
(2.5 - 3.1)
18-3
27 - 40
(3.1 - 4.5)
22 - 32 125 14-2 35 (4)
VBE430.---- D 30 22.0 32
10-1/0
Cu
20 - 60
(2.2 - 6.8)
14-6
22 - 27
(2.5 - 3.1)
18-3
27 - 40
(3.1 - 4.5)
28 - 40 150 14-2 35 (4)
VBE440.---- D 40 30.0 41
10-1/0
Cu
20 - 60
(2.2 - 6.8)
14-6
22 - 27
(2.5 - 3.1)
18-3
27 - 40
(3.1 - 4.5)
36 - 45 175 14-2 35 (4)
VBE450.---- E 50 37.0 52
10-1/0
Cu
20 - 60
(2.2 - 6.8)
14-6
22 - 27
(2.5 - 3.1)
18-3
27 - 40
(3.1 - 4.5)
40 - 50 200 14-2 35 (4)
VBE460.---- E 60 45.0 62
10-1/0
Cu
20 - 60
(2.2 - 6.8)
12-1
22 - 27
(2.5 - 3.1)
10-1/0
36 - 53
(4.1 - 6)
45 - 63 250 14-2 35 (4)
VBE475.---- F 75 55.0 77
3-3/0
Cu
80 (9) 12-1
22 - 27
(2.5 - 3.1)
10-1/0
36 - 53
(4.1 - 6)
70 - 90 350 14-2/0 50 (5.6)
VBE4100---- F 100 75.0 99
3-3/0
Cu
80 (9) 12-1
22 - 27
(2.5 - 3.1)
10-1/0
36 - 53
(4.1 - 6)
80 - 100 400 14-2/0 50 (5.6)
VBE4125---- F 125 90.0 125
6 - 350
kcmil
Cu
120 - 275
(14 - 31.1)
6 - 350
kcmil
120 - 275
(14 - 31.1)
10-1/0
124 - 210
(14 - 23.7)
50 - 200 800 14-2/0 50 (5.6)
* Wire size is AWG unless noted otherwise. Use Copper (Cu) wire that is rated 167°F (75°C) minimum 600 Vac.
Siemens Building Technologies, Inc. 15