Installation guide

30 Installation Guide Silcon DP300E 480V 120-160kVA

7OH0006 US rev. 03

Connection

Utility 2 Output

Trip function

Q10

Trip function

Utility 1

UPS

Trip function

EPO

X001

EPO SW

Trip function

Ext. batt.

cubicle or

batt. room

All MCCB’s in ext. batt.

cubicle or batt. room must

be provided with trip

function

Used for

tripping all

switches in

switch gear

and batt.

MCCB’s

All switches in switch gear must

be provided with trip function

User supplied electronics

and supply for tripping of

MCCB’s and switches

The other part of the EPO switch has interconnection to an electronic control system

(not supplied by APC), supplying the tripping function in the MCCB and switchgear

with an external 277Vac or 480Vac 50/60Hz supply, supported from Utility 2, if

available, or Utility 1 and from the output of the UPS before Q002.

This combination of 2 break function, one for the UPS system and one for external

switchgear makes it possible to make a quick shutdown of the total system in case of

emergency.