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7400 Series UPS User Manual
Single Module and One plus One Systems
Chapter 3 - Installation Procedure
Connecting the UPS power cables
6310018a.02.doc
3.4.3
Cable connections
Power cables are connected either directly to their respective circuit
breakers, or to busbars which are themselves connected to the circuit
breakers  see figures 3-8 to 3-12.
Note: If the installation includes the use of optional Input Filter Cabinets
refer immediately to the Options Chapter, Where these cabinets are fully
described. The inclusion of these cabinets in the system affects the
method of connecting the UPS power cables given below.
3.4.4
Safety earth
The safety earth busbars are located near the input and output power
supply connections as shown in the
following diagrams. The safety cable must be connected to the earth
busbar bonded to each module cabinet.
All cabinets and cable trunking should be earthed in accordance with
local regulations.
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.
3-17
Issue 2
(02/98) LCA 10/01