User Manual Chapter 3 – Installation Procedure
N
Ne
et
tw
wo
or
rk
k
P
Po
ow
we
er
r
S
Sw
wi
it
tc
ch
h
Page
3-3
3.3.3 Cable connections
Following are the set of external power cables, which are connected to the Network Power Switch equipment –
• Input source 1 – Line
• Input source 2 – Line
• Input source 1 – Neutral
• Input source 2 – Neutral
• Output – Line
• Output – Neutral
• Earthing
These cables are connected to the terminals on rear side of the equipment as shown in fig 3.2
Fig 3.2 – External Power Cables
3.3.4 Safety earth
The safety earth busbar is provided on the rear side of equipment .The safety earth cable must be connected to this
busbar.
WARNING
FAILURE TO FOLLOW ADEQUATE EARTHING PROCEDURES CAN RESULT IN ELECTRIC
SHOCK HAZARD TO PERSONNEL, OR THE RISK OF FIRE, SHOULD AN EARTH FAULT OCCUR.
3.3.5 Protective devices
The input to Network Power Switch should be given through a 32 amp, 2pole ELCB for safe operation.
3.3.6 Cabling Procedure
The external power cables should be connected to the terminals as shown in fig 3.2. Proper termination labels are
provided near each connector for ease of cabling.
O/p Line
Input Fuse 1
Input Fuse 2
Neutral - 2
Neutral - 1
Snap-on
Connector
External Cabl es
I/p Line -2
I/p Line -1
Earthing
Common
S2 Healthy
S1 Healthy
Common
S2 Healthy
S1 Healthy
Potential
Free Contacts
External Cabl e