Emerson UPS Systems installation manual Power Cable Connection Procedure

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Single-Module Mechanical Installation

1.6.1Power Cable Connection Procedure

The system input, UPS bypass, UPS output and system output cables (all require lug type termina- tions) are connected to busbars situated behind the power isolator switches as shown in 2.0 - Instal- lation Drawings. These are accessible when the power compartment door is opened.

Equipment Ground

The equipment ground busbar is located near the input and output power supply connections as shown in 2.0 - Installation Drawings. The grounding conductor must be connected to the ground busbar.

All cabinets and cable trunking should be grounded in accordance with local regulations.

! WARNING

Failure to follow adequate grounding procedures can result in electric shock hazard to personnel, or the risk of fire, should an ground fault occur.

! WARNING

The operations described in this section must be performed by authorized electricians or qualified technical personnel. If you have any difficulties, do not hesitate to contact Emerson Network Power Liebert Services. See the back page of this manual for contact information.

NOTE

Proper grounding considerably reduces problems in systems caused by electromagnetic interference.

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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-Module Output Recommended conduit and cable sizes-Module Bypass InputRecommended conduit and cable sizes-Load Output Recommended conduit and cable sizes-Load Bank Output#4/0 AWG Recommended lug sizesSpecifications Page Iti Ne tTi n That