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Overview of the Magnum PXR low voltage circuit breaker

MAGNUM PXR PRODUCT GUIDE

PA013006EN September 2022 www.eaton.com

Table 1. Terminal to accessory assignment

PXR point

position

PXR point

name

General description

Function

Individual point description

O1NO

Overcurrent trip switch 1

Indicates when breaker opens via the trip unit

Overcurrent trip switch 1 make

O1C

Overcurrent trip switch 1 common

O1NC

Overcurrent trip switch 1 break

O2NO

Overcurrent trip switch 2

Indicates when breaker opens via the trip unit

Overcurrent trip switch 2 make

O2C

Overcurrent trip switch 2 common

O2NC

Overcurrent trip switch 2 break

External ground fault source / zero

sequence sensor

External ground fault sensor trip unit input for source /

zero sequence sensing

Ground fault sensor lead 1

Ground fault sensor lead 2

Closing spring charged

Closed when spring is fully charged

Spring charged switch output

C10

RY1

Trip unit relays

Alarm 1 - Default setting: Maintenance mode active

(ARMS trip units) or Health warning (non-ARMS trip

units)

Configurable relay 1

C11

RY2

Alarm 2 - Default setting: Ground fault trip (LSIG trip

units) or High load alarm (LSI trip units)

Configurable relay 2

C12

RY3

Alarm 3 - Default setting: Any current protection trip

Configurable relay 3

C13

RYC

Relay common

Configurable relay common

C14

+24V

Trip unit auxiliary power supply input External trip unit power

Auxilliary power supply positive

C15

Auxilliary power supply common

C16

External neutral current sensor

Connect to the external neutral current sensor, jumper if

not needed and in a 4-pole breaker

Neutral current sensor lead 2

C17

N•

Neutral current sensor lead 1 (N DOT)

C18

Remote maintenance mode enable

Enable maintenance mode via a remote switch

Maintenance mode signal

C19

ZSI - Input

Connect to other ZSI enabled breakers in the system

(maximum length of 25 meters (75 feet) using AWG #22

wire)

Zone selective interlock input

C20

Trip Unit Circuit Common

Zone selective interlock common

C21

ZSI - Output

Zone selective interlock output

C22

MBA

Modbus RTU

Modbus RTU communication onboard trip unit

Non-Inverting (+) Signal

C23

MBB

Inverting (-) Signal

C24

MBG

RS485 ground

C25

COMO

Future

C26

COMC

Future

C27

CM3

Trip unit communication adapter

module (CAM) connections

Connect to a CAM

RX+ / CMM1

C28

CM4

RX- / CMM2

C29

CM1

TX+ / CMM3

C30

CM2

TX- / CMM4

C31

Future

C32

Future

C33

Future

C34

Future

C35

Future

C36

Future

Содержание Magnum PXR

Страница 1: ...Magnum PXR low voltage power circuit breakers Technical product guide...

Страница 2: ...OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON THE CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MOD...

Страница 3: ...condary 15 Breaker mounting configurations 19 Cassettes available designs 19 Design configuration flexibility 20 2 Technical data and ratings Sizes dimensions weights and configurations 22 Magnum PXR...

Страница 4: ...rvoltage release 41 Auiliary switch 42 Internal electrical accessories 42 Mechanical trip flag pop out indicator 42 Overcurrent trip switch bell alarm 43 Motor operator 43 Typical Magnum breaker contr...

Страница 5: ...Ground fault provisions and protective schemes 59 Phasing on double wide application 61 AABBCC or NNAABBCC phasing 61 ABCABC or NABCNABC phasing 61 Power system coordination 61 6 Maintenance tesing a...

Страница 6: ...rcuit breakers With the introduction of the new Power Xpert Release PXR trip units Eaton has again advanced the technology for circuit protection safety and ease of use The new optional integral rack...

Страница 7: ...e circuit breakers meet or exceed the following UL 1066 ULC 1066 ANSI C37 13 ANSI C37 16 ANSI C37 17 ANSI C37 50 In addition Magnum PXR is suitable for use in UL 1558 Certified Magnum PXR low voltage...

Страница 8: ...rred Ratings Related Requirements and Application Recommendations for Low Voltage Power Circuit Breakers and AC Power Circuit Breakers ANSI C37 17 Trip Devices for AC and General Purpose DC Low Voltag...

Страница 9: ...via PXPM software and LED indication allows faster troubleshooting and prevents downtime A fully adjustable trip unit with LSI and LSIG protection capabilities This trip unit offers a wider range of s...

Страница 10: ...The testing features and functionality which can be run through a personal computer offers savings through labor hour reduction and avoiding the need for expensive proprietary testing kits Ultimate c...

Страница 11: ...mbers act to channel arc gases up and out during interruption The operating mechanism and accessories sit on the front of the case Only the insulating front cover needs to be removed to access mechani...

Страница 12: ...Automatic drawout primary shutters Conveniently located finger proof secondary contacts Will accommodate a variety of primary terminal types configurations Fungus proof breaker housings Front cover f...

Страница 13: ...cover that gives provisions to wire tie the cover shut for extra security 3 Red MechanicalTrip Flag Pop out Indicator Optional Interlocked Indicator Requiring Manual Reset is also available 4 Contact...

Страница 14: ...ally charging the stored energy springs 5 Manual spring charging handle for manually charg ing the stored energy springs 6 Padlockable levering device shutter for drawout breakers 7 Color coded positi...

Страница 15: ...point terminal blocks Standard double narrow and double frame cassettes are available with two terminal block options Fully wired includes 12 terminal blocks for a total of 72 points Required and comm...

Страница 16: ...configurations See Table 1 for terminal to accessory assignment Figure 12 12 terminal block option Figure 13 8 terminal block option Figure 14 Secondary terminal layout Note N Not all breaker termina...

Страница 17: ...tting Ground fault trip LSIG trip units or High load alarm LSI trip units Configurable relay 2 C12 RY3 Alarm 3 Default setting Any current protection trip Configurable relay 3 C13 RYC Relay common Con...

Страница 18: ...Motor positive C55 M Motor negative C56 UV Undervoltage release Remote opening UVR positive C57 UV UVR negative C58 LNO Latch check switch Checks breaker ready to close status Latch check make C59 LC...

Страница 19: ...nections Mounting locations for cassette mounted cell switches primary safety shutters and various key interlocks are part of the cassette design to allow for customized customer options Refer to Sect...

Страница 20: ...Main breaker positions and 2 Tie breaker positions as shown in the figure below The 5000 A DN cassette utilizes an interleaved style connection on the back of the cassette to make it easier to instal...

Страница 21: ...reaker levering Can be accomplished with compartment door closed using a standard 3 8 inch 10mm drive extension without the need for special levering tool Manually or electrically operated The closing...

Страница 22: ...nes Narrow frame 800 2000 Amps Promoting the most compact modular enclosures Standard frame 800 3200 Amps Ideally suited for vertically stacked modular construction Double narrow frame 4000 5000 Amps...

Страница 23: ...y depending configuration Table 3 4 pole type Dimension type Narrow frame Standard frame Double narrow frame Double standard frame Drawout version D O in cass w terminals mm in Vol dm3 ft3 83 5 2 94 1...

Страница 24: ...50 50 50 3 4 MPN 612 Narrow 65 65 65 65 65 3 4 MPN C12 Narrow 100 100 65 65 65 3 4 MPS 512 Standard 50 50 50 50 50 3 4 MPS 612 Standard 65 65 65 65 65 3 4 MPS 812 Standard 85 85 85 85 85 3 4 MPS C12...

Страница 25: ...time withstand rating at 635 Vac Poles available 4000 MPN 640 4N 4A Double narrow 65 65 65 65 65 3 4 MPN 840 4N 4A Double narrow 85 85 65 85 65 3 4 MPN C40 4N 4A Double narrow 100 100 65 100 65 3 4 M...

Страница 26: ...BCC Poles and neutral Facing front of breaker 3 Three pole 4 Four pole Mounting configuration and load terminals H Fixed horizontal V Fixed vertical L Drawout horizontal W Drawout vertical includes 40...

Страница 27: ...dc 100 duty B 110 127 Vac Vdc 100 duty S 220 250 Vac Vdc 100 duty D 24 Vdc 100 duty K 48 Vdc 100 duty Pushbutton covers N None M Metal frame plastic cover P Plastic frame plastic cover H Plastic frame...

Страница 28: ...bs vert slots U Universal cassette with terminal pads H Narrow frame with horizontal stabs T Basic with rear extended stabs short short tie configuration 6000 A M Basic with rear extended stabs short...

Страница 29: ...rovides a large range of withstand and interrupting ratings to maximize selectivity and system coordination A range from 42 kA up to 100 kA interrupting Application on power distribution systems with...

Страница 30: ...at powers the trip unit At the same time the air core coil provides signals that are processed to measure the current through the circuit breaker The mechanical action required to initiate tripping of...

Страница 31: ...rt Delay Zone Interlock Enable Disable Neutral Protection ANSI 50N ANSI 51N 4th Pole or External Neutral x Ir OFF 60 100 OFF 60 100 Instantaneous Protection I ANSI 50P Instantaneous Pickup x In OFF 2...

Страница 32: ...catalog digit 13 14 Protection ARMS Communication Metering PXR 20 PXR20VN30LNNC 2A LSI N Adapter Module CAM Current PXR20VN30LGNC 2C LSIG N Adapter Module CAM Current PXR20VN30LNAM 2H LSI Y Modbus RTU...

Страница 33: ...PXR PRODUCT GUIDE PA013006EN September 2022 www eaton com 3 Trip unit wiring Below is the wiring diagram for a 3 pole circuit breaker For more information and additional wiring diagram resources refe...

Страница 34: ...ral functions The frame module tells the trip unit the maximum current rating for the construction of the breaker The frame module holds the manufacturing information on the factory production of the...

Страница 35: ...e Volts 0 5 of reading over the range of 102 to 690 Vac line to line at 25 C Minimum VAB VBC VCA Volts Maximum VAB VBC VCA Volts THD for VAB VBC VCA VAN VBN VCN line to neutral Volts Minimum VAN VBN V...

Страница 36: ...reaker the trip unit trips the breaker instantaneously This allows the breaker to be applied on a power distribution system with a 100kA avail able fault current while maintaining selectivity Long tim...

Страница 37: ...Mode protection function A high quality gold plated or palladium contact on the switch or relay is required for this method See Figure 34 for wiring A third method to arm the Maintenance Mode setting...

Страница 38: ...reen resolution 1280x1024 pixels or higher To download the software go to the link http www eaton com PXPM The PXPM download link for your computer requirements will be found on the web page Upon star...

Страница 39: ...iliary Switch Latch Check Switch Figure 40 Through the window electrical accessories Shunt trip ST The shunt trip is an optional device on circuit breakers It opens the circuit breaker instantaneously...

Страница 40: ...ur when the breaker is ready to close This wiring is done internally to the breaker and does not require any additional wiring at the secondaries The LCS for remote indication consists of one form C c...

Страница 41: ...Control voltages Operational volagte range 85 110 Dropout voltage range 30 60 Inrush continuous power consumption Opening time ms Kit catalog number 24 Vdc 20 26 Vdc 7 14 Vdc 250 W 18 W 70 MUVRC 32 Vd...

Страница 42: ...n addition to any LED trip indica tion next to the protection feature An optional Overcurrent Trip Switch OTS is available should an electrical lockout be required on an overcurrent trip condition The...

Страница 43: ...eration It can be factory or site installed A UL Listed motor operator kit is available to make the conversion from a manually operated breaker to an electrically operated breaker Table 16 Compact mot...

Страница 44: ...cuit diagram In Figure 50 below the typical Magnum breaker control circuit diagram is detailed Actual circuit diagram may vary depending on breaker configuration and application requirements Figure 48...

Страница 45: ...front cover Eaton supplies the lock provisions only The customer supplies the keylock The provisions available are for Kirk Castell Ronis or CES Cassette lock A cassette mounted lock can be used in co...

Страница 46: ...is provided with insulated shutters breaker driven that automatically slide into position to cover stationary cell primaries to prevent contact with low voltage circuit when the breaker is moved from...

Страница 47: ...or three Magnum breakers The mechanical interlock holds one or more breakers tripped prevents closure when others are closed A lever assem bly is mounted on each breaker which interfaces with the pole...

Страница 48: ...is open B can only be closed when A and C are open A B C 0 0 0 1 0 0 0 1 0 0 0 1 Type 32 Across three circuit breakers A B TR1 C TR2 The two half busbars can be powered by a single transformer bus ti...

Страница 49: ...partment for control of the motorized racking accessory external hard wired dry contacts For example the pushbuttons can be located at a remote control panel The controller can be used to provide outp...

Страница 50: ...g to lift the breaker from above Shelf type roll on the floor lifters can also be used to lift the breaker from underneath without a lifting yoke Test cabinet The test cabinet is a separately mounted...

Страница 51: ...ep value Figure 67 PXPM Secondary Injection Setup Once all settings have been selected the user will run the test Figure 68 is an example of a completed test If you would like to run another test sele...

Страница 52: ...o on the loss of voltage or during a low voltage condition it will assert the energy of a storage capacitor to provide a temporary voltage for the duration of up to two seconds The Time Delay settings...

Страница 53: ...des 02 03 04 06 08 and 16 Table 19 Trip Unit Registers Register number Definition Data range 404000 Baud rate 00 9600 bits s 01 19200 bits s factory default 02 38400 bits s 03 57600 bits s 404002 Pari...

Страница 54: ...ssibilities for the Magnum PXR with CAM connections and Modbus RTU connections to a PX Gateway or an Operator Interface or a PLC interface or a Dashboard or Dashboard Lite For more details on the PX G...

Страница 55: ...or kVA and sub transient reactance This reactance varies with the genera tor type and rpm from a minimum of approximately 9 for a two pole 3600 rpm turbine driven generator to 15 or 20 or more for a m...

Страница 56: ...56 Magnum PXR applications MAGNUM PXR PRODUCT GUIDE PA013006EN September 2022 www eaton com 5 Figure 74 Magnum PXR breaker continuous current In selection guide for resistance welding applications...

Страница 57: ...re provided by zone selective interlocking Zone selective interlocking is a communication signal between trip units applied on upstream and downstream breakers The protection settings on each trip uni...

Страница 58: ...one out signal is sent whenever the ground fault pickup is exceeded or when the short delay pickup value of 2 x Ir is exceeded This provides maximum selectivity for coordination with larger upstream c...

Страница 59: ...or mains when a ground fault is detected Alternatively all the ground fault protection trip units can be configured for alarming only on ground faults This allows for the continu ity of service while...

Страница 60: ...r is mounted with the grounding conductor passing through the window of the CT to measure the ground current The current flowing in the total ground current The sensor is then wired to the breaker sec...

Страница 61: ...y used in Eaton UL891 switchboards using Magnum breakers The AABBCC convention is recommended for most OEMs manufacturing their own power distribution enclosures It is ideal for applications where the...

Страница 62: ...1 100 1 500 5 000 250 400 1 100 1 500 a Servicing shall consist of adjusting cleaning lubricating and tightening Increased maintenance Although Magnum breakers are designed and manu factured to operat...

Страница 63: ...diagnostics for low voltage circuit breakers This critical information can be used to make more informed decisions about actual equipment conditions These intel ligent circuit breakers can display an...

Страница 64: ...addition to breaker testing questions may arise on how to handle the breakers when testing the assemblies they are installed in mainly when performing high potential hi pot or dielectric testing No c...

Страница 65: ...oad Current Ambient temp and thermal derating tables Magnum breakers are tested and fully rated for use in ambient temperatures from 0 C to 40 C Thermal de rating tables are provided for different Mag...

Страница 66: ...7 3350 0 867 0 973 3500 0 850 0 970 3650 0 833 0 967 3800 0 817 0 963 3950 0 800 0 960 5000 0 700 0 940 Test bus configuration The bus bar size examples shown here are those specified by ANSI IEC 947...

Страница 67: ...raphics of typical enclosures with associated dimensions are provided as guidance for breaker enclosure designs with respect to the enclosure size and required amounts of ventilation space Condensatio...

Страница 68: ...rks are property of their respective owners Eaton 1000 Eaton Boulevard Cleveland OH 44122 United States Eaton com 2022 Eaton All Rights Reserved Printed in USA Publication No PA013006EN VCG September...

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