Vertiv™ | Liebert® STS2/PDU
™
User Manual | Rev. 6 | 10/2017 35
Figure 25 Electrical field connections, 250A Liebert STS2/PDU input with CB3 & CB3A
PSP11011
Rev. 1
FRONT
Doors and Accent Panels
Not Shown
CB5
A
B
C
A
B
C
A
B
C
.51" DIA.
(13mm)
Typ. 4 Places
See Ground
Busbar Detail B
CB3
CB3A
See Source
Busbar
Detail A
CB4
CB1
Source 1
Source 2
CB6
CB7
CB2
1. Phase, neutral and ground busbars are 1/4" thick.
2. Control wiring and power wiring must be run
in separate conduit. Output cables should be run
in a separate conduit from input cables.
3. Aluminum and copper clad aluminum cables
are not recommended.
4. All wiring is to be in accordance with national
and local electrical codes
Source 1 Busbar
Approx. 7.5 x 3.2
(191 x 81mm)
1/2"-13 PEM Nut
Typ. 4 Places
Source 2 Busbar
Approx. 7.5 x 3.2
(191 x 81mm)
1/2"-13 PEM Nut
Typ. 4 Places
SOURCE BUSBAR
DETAIL A
No Customer
Connections
No Customer
Connections
GROUND BUSBAR
DETAIL B
1.75" (44mm)
1.77"
(45mm)
8" (203mm)
3.5"
(89mm)
1.75"
(44mm)
Typical