Vertiv Liebert STS2/PDU - Figure 21 Control Wiring for Remote Source Selection Option

Vertiv™ | Liebert
®
STS2
™
100-1000A, 50/60Hz User Manual | Rev. 12 | 11/2017 34
Figure 21 Control wiring for remote source selection option
PS213007
Rev. 2
REMOTE SOURCE SELECTION
See Note 1
Source1
Preferred
Source 2
Preferred
TB50
S1 S2GND GND
123456
NOTES
1. Customer-provided normally open dry contacts. Rating 10mA at 30 VDC.
2. Maximum cable length 500 ft. (152m) with 16 AWG, 300V minimum,
flexible stranded cable.
3. All control wiring, by others, must be run separately from power wiring.
Control wiring runs should not be combined in the same conduit.
4. Refer to Static Transfer Switch control connection diagram for location
of remote source selection option. All wiring must be in accordance
with national and local electrical codes.