Table of Contents
1 INTRODUCTION ............................................2
1.1 Additional MX
3
Product Features....................................5
2 TECHNICAL SPECIFICATIONS ...................................10
2.1 General Information ...........................................10
2.2 Electrical Ratings .............................................10
2.2.1 Terminal Points and Functions........................................10
2.2.2 Measurements and Accuracies........................................11
2.2.3 List of Motor Protection Features ......................................11
2.2.4 Solid State Motor Overload..........................................12
2.2.5 CT Ratios ....................................................13
2.3 Starter Power Ratings ..........................................13
2.3.1 Standard Duty (350% for 30 sec) Ratings ..................................14
2.3.2 Heavy Duty (500% current for 30 sec) Ratings ...............................15
2.3.3 Severe Duty (600% current for 30 sec) Ratings ...............................16
2.3.4 Inside Delta Connected Standard Duty (350% for 30 sec) Ratings....................17
2.3.5 RB2 Power Stack Ratings and Protection Requirements .........................18
2.3.6 Power Stack Input Ratings with Protection Requirements for Separate Bypass ............19
2.3.7 Power Stack Input Ratings with Protection Requirements for RC No Bypass .............20
2.3.8 RB2 Starter Control Power Requirements .................................21
2.3.9 RC2 Starter Control Power Requirements .................................21
2.4 Dimensions ................................................22
2.4.1 RB2 Chassis with Integral Bypass ......................................22
2.4.2 RC2 Chassis with no Bypass .........................................24
2.5 Environmental Conditions........................................25
2.6 Altitude Derating .............................................25
2.7 Approvals .................................................26
2.8 Certificate of Compliance ........................................26
3 INSTALLATION .............................................28
3.1 Before You Start..............................................28
3.1.1 Inspection....................................................28
3.1.2 Installation Precautions ............................................28
3.1.3 Safety Precautions ...............................................28
3.2 Installation Considerations .......................................29
3.2.1 Site Preparation ................................................29
3.2.2 EMC Installation Guidelines .........................................29
3.2.3 Use of Power Factor Capacitors .......................................29
3.2.4 Use of Electro-Mechanical Brakes ......................................29
3.2.5 Reversing Contactor..............................................29
3.3 Mounting Considerations ........................................30
3.3.1 Bypassed Starters ...............................................30
3.3.2 Non-Bypassed Starters ............................................30
3.4 Wiring Considerations ..........................................31
3.4.1 Wiring Practices ................................................31
3.4.2 Considerations for Control and Power Wiring...............................31
3.4.3 Considerations for Signal Wiring ......................................31
3.4.4 Meggering a Motor ..............................................31
3.4.5 High Pot Testing ................................................31
3.5 Power and Control drawings for Bypassed and Non Bypassed Power Stacks ...........32
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TABLE OF CONTENTS