Emerson 250 installation manual

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NOTE

Emerson Network Power neither recommends nor knowingly sells this product for use with life support or other FDA-designated “critical” devices.

NOTICE

This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J of the FCC rules. These limits provide reasonable protection against harmful interference in a commercial environment. This unit generates, uses and radiates radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense.

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Contents

Liebert NXL Product Warranty Registration Contacting Liebert for SupportTable of Contents Figures Important Safety Instructions Page Preliminary Checks SINGLE-MODULE Mechanical InstallationIntroduction Environmental ConsiderationsPositioning System CompositionMaintenance Bypass Cabinet Cable EntryExternal Protective Devices Power CablesUPS Electrical Installation Dual InputPower Cable Connection Procedure Top Cable EntryControl Cable and Communications External Interface Board connections layoutControl Status Inputs Dry Contact Dry ContactsEPO Input Dry Contact Remote EPO inputSwitch Auxiliary Inputs Dry Contacts Control Status Output Dry ContactsLoad Bus Synch Connection Single-Module System Options Communication and MonitoringOptional Equipment Installation Drawings Main components location, 250kVA Liebert NXL UPSTop View Doors Open Doors and Inner Skins Removed Outline drawing, 300kVA Liebert NXL UPS Front Front View Side View Front View Right Side View Front Doors Removed Front Detail a Battery & DC Parameters SpecificationsLiebert NXL UPS specifications 250 300 400 Input Parameters250 300 400 Physical Parameters and Standards, in mm Environmental ParametersCurrent ratings-rectifier input Current ratings-batteryLiebert NXL system and inverter efficiencies Current ratings-bypass inputRectifier Input BatteryRecommended conduit and cable sizes Bypass InputRecommended lug sizes Series Cable Size One Hole Two HoleTi n Ne tIti That

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