Emerson SiteLink-12E - Manual (Page 9)

Connect Input Power Wiring
5
3.0 C
ONNECT
I
NPUT
P
OWER
W
IRING
3.1 Power Wiring
The Liebert SiteLink-E module is a Class 2 device (less than 30VAC, 0.4A). Take appropriate isola-
tion measures when mounting the Liebert SiteLink-E module in a control panel where non-Class 2
devices (120VAC or greater) or wiring are present.
Several modules may be powered from the same transformer if:
• the modules have the same polarity
• the transformer’s power rating is at least 20% greater than needed for the modules
For example, if the transformer is rated for 50VA and two modules, each rated at 20VA, are con-
nected, the power trunk uses a recommended 80% of the transformer’s power (20+20=40).
3.1.1 Input Power Requirements
The Liebert SiteLink-E is available in 50Hz and 60Hz models. The unit has an operating range of
21.6VAC to 26AVAC. If voltage measured at the module’s power input terminals is outside this range,
the module may not work properly.
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working within.
The Liebert SiteLink-E unit must be connected by a licensed and qualified electrician only.
Ensure that the unit is electrically isolated for the duration of the connection operation and is
secured against unauthorized startup.
!
CAUTION
Do NOT turn the module On. Turning the module On before it is checked and approved by a
properly trained and qualified specialist may void the warranty.
The module should be turned on by a factory-trained specialist only.