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Eaton Magnum PXR Design Manual
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Eaton Magnum PXR Design Manual

Eaton Magnum PXR Design Manual

Front-access low-voltage switchgear
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Design Guide DG019007EN
Low-voltage power distribution and control systems > Switchgear >
Front-access Magnum PXR
low-voltage switchgear
Contents
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-2
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-2
Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-9
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-9
Metering Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-16
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-17
Automatic Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-17
High-Resistance Grounding . . . . . . . . . . . . . . . . . . . 20 .6-18
Surge Protection Devices . . . . . . . . . . . . . . . . . . . . . 20 .6-19
Layouts and Dimensions . . . . . . . . . . . . . . . . . . . . . . 20 .6-20
Breaker Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-20
Structure Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-23
Application Details . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-27
Effective October 2024
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Summary of Contents for Eaton Magnum PXR

  • Page 1 Design Guide DG019007EN Effective October 2024 Low-voltage power distribution and control systems > Switchgear > Front-access Magnum PXR low-voltage switchgear Contents General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 .6-2 Product Description .
  • Page 2 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 General Description 20 .6-2 Product Description Product Offering Features UL 1558 Standard 40.20-inch (1021.0 mm) ■ ■ switchgear depth CSAT C22.2 No. 0.22 and Front-Access Switchgear ■ C22.2 No. 31-04 Up to 4-high Magnum circuit ■...
  • Page 3 Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 General Description 20 .6-3 Overview Magnum PXR switchgear can meet the Magnum PXR breakers are designed to: needs of general applications, service IEEE Standards C37.13, C37.16, C37.17 ■ entrances, harsh environments, multi ple ANSI Standard C37.50...
  • Page 4 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 General Description 20 .6-4 Structure Features Through-the-door design: The following Four-position drawout: Breakers can functions may be performed without the be in connected, test, disconnected or Standard finish: Gray paint finish need to open the circuit breaker door—...
  • Page 5 Buses and connections: Vertical and polyester has been used on both low and connections from the cable compart ment cross bus ratings in Magnum PXR medium voltage switchgear for decades. providing added safety to the workers switchgear are based on a UL and IEEE...
  • Page 6 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 General Description 20 .6-6 Wiring Features Instrumentation/Metering Features Control wire marking: Each wire is imprinted with ink cured under ultra - Flexibility: Magnum PXR switchgear Cable compartment: The cable violet light for durability and for easy allows for a variety of metering options.
  • Page 7 Remote racking device (MRR1000) for ■ both breaker racking and operation (open/close) from a safe distance. Mounts to any existing Magnum PXR breaker. Uses standard 120 V, 15 A, single-phase, 60 Hz supply, available from any outlet Cable lashing device kits simplify cable ■...
  • Page 8 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 General Description 20 .6-8 Enhanced Switchgear Options Optional integrated motorized remote ■ racking device (MR2) can be installed on any breaker and controlled either through a PXG1000 with the remote...
  • Page 9 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-9 Circuit Breakers Breaker Features Stored-Energy Mechanism A cam-type closing mechanism Eaton’s Magnum power circuit breakers Four Physical Frame Sizes closes the breaker. It receives its energy...
  • Page 10 MR2 integral motorized remote racking the optional charging motor. option allow an operator to remotely The breaker is mechanically inter- rack a Magnum PXR or PD-SB breaker locked to prevent closing of the Optional Breaker Accessories from a distance of 30 ft (9.14 m)
  • Page 11 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-11 Magnum PXR Switchgear—Trip Units PXR 20: Enables the user as many as nine phase and ground current protection Power Xpert Release trip unit: The Power settings for maxi mum flexibility in...
  • Page 12 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-12 Arcflash Reduction The Arcflash Reduction Maintenance System setting has five unique settings Maintenance System (1.5, 2.5, 4.0, 6.0, 10.0 x I ) for the pickup The Arcflash Reduction Maintenance of the reduction setting.
  • Page 13 Primary Protection Features The Time-Current Curves (TCC) for the PXR 20/25, when used in Magnum PXR circuit breakers, are found in document TD013172EN. All protection settings shall be made by following the recommendations of the specifying engineer in charge of the installation.
  • Page 14 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-14 Current, Voltage, Frequency, Power and Energy Data Both the PXR 20 and PXR 25 provide real-time metering information regarding the loads being protected. The PXR 25 includes monitoring of voltage and phase angle to support power and energy data.
  • Page 15 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-15 Table 20.6-6. Magnum PXR Switchgear Class UL 1066 Low-Voltage Power Circuit Breakers Frame Breaker Frame Type rms Symmetrical Current Ratings kA Short-Time Available Programmed Nominal (I...
  • Page 16 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-16 Metering Devices Power Xpert Energy Meter (PXE) Power Xpert Meter 8000 Power Xpert Energy Meter (PXE) Power Xpert Meter 8000 The PXE offers a new level of accessibility...
  • Page 17 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-17 Communications Automatic Transfer PXG1000 Power Xpert Gateway 1000 Ethernet communications available via Power Xpert Gateway PXG1000 with one of three configurations available in low-voltage switchgear: Programmable Logic Controller...
  • Page 18 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Devices 20 .6-18 High-Resistance Grounding General Description Where continuity of service is a high priority, high-resistance grounding can add the safety of a grounded system while minimizing the risk of service interruptions due to grounds.
  • Page 19 Email alarm notifications are available when configured ■ through Power Xpert Gateway 1000 Eaton integrates our industry-leading SPD Series surge protective devices into panelboard and switchboard assemblies. Lead length is kept to a minimum to maximize SPD performance. Integrated SPD units are UL listed and labeled to UL 1449 5th Edition.
  • Page 20 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-20 Breaker Layouts Note: 18 .00-Inch (457 .2 mm) Breaker Sections: Cable section can ONLY be on the right. 22 .00-Inch (558 .8 mm) Breaker Sections:...
  • Page 21 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-21 Blank or Blank or Instrument Instrument Cable Blank or Main, Tie, Feeder Main, Tie, Feeder Pull Section Instrument 4000 4000 Main, Tie, Feeder Blank or...
  • Page 22 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-22 Feeder Feeder Metering MPN-608 Metering MPN-608 Metering 800 A 800 A Main Feeder Feeder Main Cable Cable MPS 632 MPN-608 MPS 632 MPN-608 MPS 632...
  • Page 23 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-23 Structure Dimensions 44.00 54.00 68.00 (1117.6) (1371.6) (1727.2) 22.00 22.00 24.00 30.00 24.00 44.00 (558.8) (558.8) (609.6) (762.0) (609.6) (1117.6) Cable Cable Cable 17.52 17.52...
  • Page 24 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-24 3.50 3.50 (88.9) (88.9) Lifting angle (View A) 8.81 Enclosure width 3.19 (223.8) (81.1) View A 30.82 6.02 4.10 (782.8) (152.9) (104.1) Ground bus 800 A runbacks shown;...
  • Page 25 Continuous Duty Shunt Trip also available that eliminates the requirement for the “a” contact cutout switch. Electronically Operated Breaker (MPS) Figure 20.6-9. Typical Magnum PXR Breaker Control Circuit Diagram Figure 20.6-10. Typical Standard Frame Magnum PXR Switchgear Secondary Terminal Block Connection Diagram EATON www.eaton.com...
  • Page 26 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Layouts and Dimensions 20 .6-26 Figure 20.6-11. Magnum PXR Secondary Layout for Narrow Frame EATON www.eaton.com...
  • Page 27 Center of Gravity MPS-840 310 (141) For seismic calculations, the following dimensions should be used MPS-C40 310 (141) to locate the center of gravity for indoor Magnum PXR switchgear. MPS-850 310 (141) MPS-C50 310 (141) Table 20.6-10. Center of Gravity Location...
  • Page 28 Design Guide DG019007EN Front-Access Magnum PXR Low-Voltage Switchgear Effective October 2024 Application Details 20 .6-28 Service Conditions All low-voltage air power circuit breakers are tested per the IEEE Standard C37.1 for a system X/R ratio of 6.6 maximum. It is...
  • Page 29 5. Exposure to seismic shock. Magnum PXR switchgear and Magnum circuit breakers with PXR trip units breakers have been certified for applications through International Building Code 2021 (IBC) and California Building Code 2019 (CBC). Assembly modifications may be required, so such conditions must be specified.