BENSHAW RediStart MX3 Series User Manual

Table of Contents
1 INTRODUCTION ............................................ 2
2 TECHNICAL SPECIFICATIONS ................................... 8
2.1 General Information ........................................... 8
2.2 Electrical Ratings ............................................. 8
2.2.1 Terminal Points and Functions........................................8
2.2.2 Measurements and Accuracies........................................10
2.2.3 List of Motor Protection Features ......................................10
2.2.4 Solid State Motor Overload..........................................11
2.2.5 CT Ratios ....................................................12
2.2.6 Optional RTD Module Specifications ....................................13
2.2.7 Zero Sequence Ground Fault CT.......................................14
2.3 Starter Power Ratings .......................................... 14
2.3.1 Standard Duty (350% for 30 sec) Ratings ..................................15
2.3.2 Heavy Duty (500% current for 30 sec) Ratings ...............................16
2.3.3 Severe Duty (600% current for 30 sec) Ratings ...............................17
2.3.4 Inside Delta Connected Standard Duty (350% for 30 sec) Ratings ....................18
2.3.5 RB3 Power Stack Ratings and Protection Requirements .........................19
2.3.6 Power Stack Input Ratings with Protection Requirements for Separate Bypass ............20
2.3.7 Power Stack Input Ratings with Protection Requirements for RC No Bypass .............21
2.3.8 RB3 Starter Control Power Requirements .................................22
2.3.9 RC3 Starter Control Power Requirements .................................22
2.4 Dimensions ................................................ 23
2.4.1 RB3 Chassis with Integral Bypass ......................................23
2.4.2 RC3 Chassis with no Bypass .........................................24
2.5 Environmental Conditions........................................ 25
2.6 Altitude Derating ............................................. 26
2.7 Real Time Clock.............................................. 26
2.8 Approvals ................................................. 26
2.9 Certificate of Compliance ........................................ 26
3 INSTALLATION ............................................. 28
3.1 Before You Start.............................................. 28
3.1.1 Installation Precautions ............................................28
3.1.2 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

BENSHAW RediStart MX3 Series Specifications

General

Brand	BENSHAW
Model	RediStart MX3 Series
Category	Controller
Language	English