Eaton Magnum PXR - Circuit Breaker Inspection Record; Manual Operation Functional Checks; Electrical Operation Functional Checks; Interlock System Checks

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Magnum PXR applications

MAGNUM PXR PRODUCT GUIDE PA013006EN September 2022 www.eaton.com

Figure 74. Magnum PXR breaker continuous current (I

) selection guide for resistance welding applications

Main Page

Table of Contents3
Overview of the Magnum PXR Low Voltage Circuit Breaker6
Breaker Overview6
Magnum PXR (UL Standards)7
Universal Family Features9
PXR Overview9
Motorized Remote Racking (MR2)11
Construction Characteristics11
Rigid Frame Housing11
Three Piece Construction11
Two-Step Stored Energy Mechanism11
Unsurpassed Performance Design11
Value-Added Features12
Front Cover Features12
Front Cover Details13
Breaker Internal Features14
Breaker Secondary15
Breaker Mounting Configurations19
Cassettes (Available Designs)19
Design Configuration Flexibility20
Technical Data and Ratings22
Sizes, Dimensions, Weights and Configurations22
Magnum PXR ANSI Breaker Family Ratings23
Technical Data Sheet24
Catalog Builder26
Breaker26
Cassette28
Nameplate Identification and Markings29
High Performance Interrupting and Withstand Levels29
Continuous Current Ratings29
PXR Trip Unit and Communication Modules30
Overview of PXR Electronic Trip Units30
Standards and Certifications30
PXR Protection Settings/Features30
PXR Protection31
PXR Trip Unit Module Catalog Numbers32
Magnum DS Digitrip to Magnum PXR Equivalency32
Trip Unit Wiring33
Common PXR Unit Features34
PXR Trip Unit and Communication Modules (Continued)34
Measurement35
Table of Metering Data in the PXR 20 and PXR 2535
Mechanical Trip Flag Pop-Out Indicator36
Bell Alarm/Overcurrent Trip Switch (OTS)36
Making Current Release36
Fixed Internal Instantaneous Override Trip36
Long Time Memory (LTM)36
Over Temperature Trip36
Arcflash Reduction Maintenance System37
Power Xpert Protection Manager Software (PXPM)38
Magnum PXR Accessories39
Overview39
Plug-In Electrical Accessories39
Shunt Trip (ST)39
Spring Release and Latch Check Switch40
Undervoltage Release41
Auiliary Switch42
Internal Electrical Accessories42
Mechanical Trip Flag Pop-Out Indicator42
Overcurrent Trip Switch (Bell Alarm)43
Motor Operator43
Typical Magnum Breaker Control Circuit Diagram44
Mechanical Accessories45
Operations Counter45
Off Key Lock45
Cassette Lock45
Pushbutton and Prevent Close Cover45
Lock-Off Cover46
Cassette Safety Shutters46
Cassette Cell Switch46
Door Escutcheon47
IP55 Waterproof Cover47
Mechanical Interlock47
Accessories and Peripheral Devices49
Levering Tool49
Motorized Remote Racking Device (MR2)49
Magnum External Remote Racking Device (MRR1000)49
Universal Remote Power Racking System (Type RPR-2)50
Lifting Yoke and Floor Lifting Device50
Test Cabinet50
Auxiliary Power Module50
Secondary Injection Testing Via PXPM51
Time Delay Undervoltage Module52
Magnum PXR Accessories (Continued)52
Communication Accessories53
Modbus_Rtu Communications53
CAM (Communications Adapter Modules)53
Communication Configurations54
Magnum PXR Applications55
Transformer Breakers55
Bus Sectionalizing (Tie) Breakers55
Generator Breakers55
Resistance Welding55
Zone Selective Interlocking57
ZSI Testing58
Low Voltage High Resistance Ground Fault Sensing59
Ground Fault Provisions and Protective Schemes59
Phasing on Double-Wide Application61
AABBCC or NNAABBCC Phasing61
ABCABC or NABCNABC Phasing61
Power System Coordination61
Maintenance, Tesing, and Operating Conditions62
Maintenance Schedules62
Normal Maintenance62
Increased Maintenance62
Breaker Health Monitoring63
Testing64
Tools for Troubleshooting64
Event Summaries64
Waveform Capture64
Usual Service Conditions65
Normal Environmental Conditions65
Ambient Temp and Thermal Derating Tables65
Altitude Factors66
Test Bus Configuration66
Recommended Electrical Clearances67
Recommended Enclosure Size/Ventilation67
Condensation Heaters in Enclosures67

Eaton Magnum PXR - Circuit Breaker Inspection Record; Manual Operation Functional Checks; Electrical Operation Functional Checks; Interlock System Checks

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