User`s manual

21
Defender 3 Online Emergency Lighting Inverter User’s Manual
#018-7150-03 Rev NR
5. DESCRIPTION
5.1. DESCRIPTION OF BATTERY CABINET/S
5.1.A. BATTERY CABINET BREAKER ASSEMBLY
The Battery Cabinet Breaker Assembly is located inside the right door of the UPS Battery Cabinet (see
Figures 15a or b). Located on the Breaker Assembly are the Battery String Breakers (two strings per
cabinet), the Battery Cabinet Interconnect Terminals, and optional Alarm Contacts Terminals.
Lethal voltages exist within the cabinet, even when the unit is de-energized. Only
qualified service personnel with adequate training must service this equipment.
5.1.A.1. Battery Breaker Assembly
The breakers provide protection of overload and short circuit and should only be replaced with
like breakers.
5.1.A.2. Battery/UPS Cabinet Interconnect Terminals
There are Two (2) sets of terminal blocks that are used for the connection of the battery voltage to
and from the UPS Cabinet. The other two terminal blocks are for the optional alarm contacts to
the battery cabinet. When making the interconnection between the UPS Cabinet and the Battery
Cabinet it is imperative that power connections being connected observing all proper polarities?
5.2. DESCRIPTION OF UPS CABINET (S)
5.2.B. SYSTEM COMPONENT LAYOUT
The following layouts will help you find the parts and components in your Emergency Lighting In-
verter. Maintenance should only be performed by factory-trained or qualified personnel. Do
not attempt to service. If you need technical assistance, please contact DSPM.
Figure 6