Emerson UPS Systems installation manual Installation Drawings

Page 11

Installation Drawings

2.0INSTALLATION DRAWINGS

Figure 2 Two-Breaker Maintenance Bypass Cabinet, one-input, attached

Two Breaker Maintenance Bypass Cabinet

FBO

MBB

I	MIB

BFB

Critical

Load

Load Bank

(FBO)

	CB1
Main Input
Switchgear	UPS Module
	UPS Module
	Battery
	System

DC Bus	CB2
	CB2
	N
	MBJ
	EG
	MIB - Maintenance Isolation Breaker
MBD	MBB - Maintenance Bypass Breaker
MBD	FBO – Furnished By Others
	N – Neutral
	EG – Equipment Ground
	MBJ – Main Bonding Jumper(3-wire systems only)

I - Option Interlock

7

Image 11

Contents Liebert NXL Maintenance Bypass Cabinet Product Warranty Registration Table of Contents Figures Important Safety Instructions Introduction Positioning Power Cables Power Cable Connection Procedure Single-Module Mechanical Installation Installation Drawings Two-Breaker Maintenance Bypass Cabinet, two-input, attached Busbar Detail B Front Section A-A Bottom View Footprint Bottom View Footprint TOP View BUS BAR Detail a BUS Termination Detail Cable routing Front Run From Conductor Bypass Installation Drawings P1 D T Installation Drawings Interlock Control wiring connections withoutFrom Purpose Control wiring connections with interlockSection A-A Cabinet-to-Cabinet Liebert NXL Maintenance Bypass Cabinet specifications SpecificationsRecommended conduit and cable sizes-Maintenance Bypass Input Recommended conduit and cable sizes-Load Bank Output Recommended conduit and cable sizes-Module Bypass InputRecommended conduit and cable sizes-Module Output Recommended conduit and cable sizes-Load Output#4/0 AWG Recommended lug sizesSpecifications Page That Ne tIti Ti n