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UPS 225 - 275 kVA
User’s and Installation Guide
1027212
Revision C
18
Read and understand the following notes while planning and performing the installation:
Install the interface wiring (for example, building alarm, relay output, battery breaker trip, •
and X-Slot) separate from the power wiring. The wiring should have double insulation and
rated at Uo/U = 300/500 Volts.
All interface wiring is to be provided by the customer.•
When installing internal interface wiring to X-Slot terminals, route the wiring through the •
internal opening in the X-Slot communication bay.
All building alarm inputs or remote features require an isolated normally-open contact or •
switch (rated at 24 Vdc, 20 mA minimum) connected between the alarm input and common
terminal as shown. All control wiring and relay and switch contacts are customer-supplied.
Use twisted-pair wires for each alarm input and common.
The building alarms can be programmed to display the alarm functional name.•
LAN and telephone drops for use with X-Slot cards must be provided by facility planners or •
the customer.
The UPS Battery Aux and 48 Vdc Shunt Trip signal wiring from the UPS must be connected •
to the DC source disconnect device.
Battery Aux and 48 Vdc Shunt Trip wiring should be a minimum of 1.5 mm•
2
.
The Remote EPO feature opens all contactors in the UPS cabinet and isolates power from •
your critical load. Local electrical codes may also require tripping upstream protective
devices to the UPS.
The Remote EPO switch must be a dedicated switch not tied to any other circuits.•
A jumper wire must be connected between pins 1 and 2 on TB1, if the normally-closed •
Remote EPO contact is not used.
Remote EPO wiring should be a minimum of 0.75 mm•
2
and a maximum of 2.5 mm
2
.
The maximum distance between the Remote EPO and the UPS cannot exceed 150 meters.•
Alarm relay contacts have a maximum current rating of 5A and a switched voltage rating of •
30 Vac and 28 Vdc.
Alarm relay wiring should be a minimum of 0.75 mm•
2
.