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MGE UPS Systems STS 200A, STS 400A, STS 600A 1.3General Description, Busbars, Mounting, Cable Entry, Accessibility, Enclosure Type, Power Connections, Physical Characteristics, Enclosure Dimensions Depth:

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Epilson STSTM

1.3General Description

The Epsilon STS™ system is available in two different cabinet sizes. Dimensions for the cabinets are:

◗200A cabinet: 72”H x 24”W x 30”D

◗400A/600A cabinet: 72”H x 38”W x 30”D

Both cabinets are designed to provide for top and/or bottom entry of input and output power feeds.

The Epsilon STS™ system can be purchased to accept 208 VAC, 220 VAC, 240 VAC, 440 VAC, 480 VAC, 575 VAC or 600 VAC utility feed.

Figure 1-1a: Epsilon STS™ - 200A Cabinet.

Figure 1-1b: Epsilon STS™ - 400/600A Cabinet.

Physical Characteristics
Enclosure Type	NEMA 1, Free-standing, modular configured with hinged dead front construction
	protecting high voltage areas.
Enclosure Dimensions Depth:		30” (System will pass through standard 36” wide door).
	Height:	72”.
	Width:	24” for 200A STS; 38” for 400A and 600A STS.
Accessibility	Front access for operation and maintenance. Front or side access for customer power
	connection points.
Power Connections/	All power connections and terminations to be solid copper braced rated for
Busbars	100KAIC.(400/600A models may be a combination of copper busbars and cables).
Cable Entry	Top and Bottom.
Mounting	360° Casters and Leveling Jacks with 1” minimum adjustment.

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Introduction

86-504004-00 B03

Contents

w w w . m g e u p s . c o m Standard Features Installation and User Manual Page MGE UPS SYSTEMS, INC. 1660 Scenic Avenue Costa Mesa, CA 92626 (714) NOTE How to use this manual and Symbol Usage CAUTION IMPORTANT NOTE UPS SERIAL NUMBER: MODULE SERIAL NUMBER: BATTERY SERIAL NUMBER: ADDITIONAL MODULES SERIAL NUMBERS: Contents Section 2 Setup and Installation Section 3 Operation Glossary Reorder Form MGE Warranty & Proprietary Rights for Three Phase Products Warranty and Product Registration Customer Care Center - Single Phase Products Figures Tables On-SiteQuick Start First steps by an on-sitequalified Technical Engineer Required Equipment and Tools Step 1 Unpacking Figure QS-1 Page Connect Input Power from Two Sources NOTE: Step 4 Arrival of MGE Field Engineer Optional Steps Introduction 1.0Scope 1.1Reference Manuals 1.2Section Descriptions 1.3General Description 1.4Epsilon STSTM System Characteristics 1.4.1PMM2 Plus and PMM2 Ultra 1.5System Major Components Hard Keys Input Power SCR Switch Soft Keys Static Transfer Switch (STS) 1.6Single Line Diagram 1.7System Specifications 1.7.1Electrical Electrical Characteristics 1.72Electrical Cable Access and Connections 1.7.3Connecting Power Cables 1.7.4Accessing Electrical Connections # OF CABLES PER MINIMUM CABLE LUG CONDUIT STS RATING (AMPS) DIA (QTY.) Page Setup and Installation 2.0Scope 2.1Cabinet Placement and Environment Data Rate 2.2Clearances and FootPrint 2.2.1Conduit Plate Location (bottom entry) 2.3Source #1 AC Input Connections 2.3.1.Source #2 AC Input Connections 2.3.2AC Output Connections 2.3.3Remote Emergency Power Off (REPO) Cable Connections 2.3.4Remote Source Loss Test Cable Connections 2.3.5Connection of the Relay Communication Card 2.3.6Characteristics of the Output Contacts 2.3.7Characteristics of the Input Contacts 2.3.8Removing the Communications Card Cover 2.3.9Replacing the Cover 2.4Setting Operation Mode 2.5Setting the Output Relay Contacts and Input Switching States 2.5.1Connection of the JBUS Communication Card 2.6Check Points Before and After Start Up 2.6.1Pre-StartUp Safety Check List 2.6.2Post-StartUp Safety Check List Operation 3.0Scope 3.1Preparation for Operation 3.2Pre-StartUp Safety Check List 3.2.1Normal Start Up Procedure 3.2.2Post Start Up Safety Check List 3.2.3Shutdown Procedure 3.3Transfer Operations 3.3.1Automatic Transfers 3.3.2Manual Transfers 3.3.3Automatic Retransfers 3.3.4Transfer Authorization/Prohibition 3.4Maintenance Bypass/Molded Case Switches/Live System Test 3.4.1Switch Arrangement 3.4.2Electrical Bypass Switch Interlock 3.4.3Electric Input-BypassSwitch Interlock 3.4.5Live System Test (Except with 4-InterlockSystem) 3.4.6EPO 3.5Preferred Source Selection (Symmetrical Operation) 3.6Sensing and Transfer Times 3.7Overload Operation 3.9Open SCR Protection 3.10Source Cross-ConnectionProtection 3.11Bypass Procedure Bypass Load to Source #2 Return to Normal Operation (load on Source #2) Test Mode (Except with 4-InterlockSystem) supply circuits are still live and power is provided for indicator lights and emergency power off circuits 3.12Front Panel 3.13Front Display Interface Panel Preferred = 0° Page PREFERRED IN SYNC CB1 CB2 ALARM 3.14Operator Interface Screens 3.15Epsilon STS™ Customization Product Name MGE Warranty & Proprietary Rights Statement for Three Phase Products User Information Product information Warranty Extension (Warranty+) MGE Customer Care Center - Three Phase Products Technical Support: Customer Care Center: 1-800-438-7373 (Hours: 24/7) Customer FAQ Page Glossary Term used Definition / Meaning Page Page Page Use this form Installation and User Manual Page Page Contact MGE United States MGE UPS SYSTEMS Canada MGE UPS SYSTEMS #9,2789ThamesgateDrive Mississauga,ONL4T4E8