Eaton NRX Instruction Manual
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Eaton NRX Instruction Manual

Rf low voltage power circuit breakers
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See also: Instruction and Installation Manual
Instruction Manual MN013002ENH03
Series NRX with PXR - type RF low voltage power (air)
circuit breakers instruction manual
Instructions apply to:
UL489 series NRX RF frame
IEC IZMX40
Typical drawout circuit breaker and cassette
Typical fixed circuit breaker

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Summary of Contents for Eaton NRX

  • Page 1 Instruction Manual MN013002ENH03 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual Instructions apply to: UL489 series NRX RF frame IEC IZMX40 Typical drawout circuit breaker and cassette Typical fixed circuit breaker...

  • Page 2: Table Of Contents

    Left accessory tray ...........19 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 3 Frame rating module replacement ........56 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 4 Introduction ............56 DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY ... 58 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 5 All circuit breakers should be switched to the OFF position and the mechanism springs discharged. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 6 Instruction Manual MN013002ENH03 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 7: Section 1: Introduction

    105 kA are available depending on the applicable standard. erty damage. All series NRX circuit breakers are 100 percent rated. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 8: Product Labeling And Identification

    Mnf. date code 160730 (YYMMDD) 20 digit catalog number RYSC303WMAARTLR2ZADX Breaker manual Instruction manual - MN013002EN Use in cassette RY303 (MN) Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 9: Breaker Overview

    Refer to Section 5 and 6 for mounting and installation dimensional information. Electronic files of dimensional drawings for customer use are available for download at www.eaton.com/seriesnrx. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 10 8. Levering mechanism 9. Available on board lev-in tool (sold separately) ote: Refer to Figure 5 for more visual details of front cover. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 11 8. Safety shutters (optional) 9. Primary terminal pad 10. Interphase barrier mounting slot 11. Secondary wiring point identification 12. Drawout extension rail latch Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 12 6. Secondary wiring point identification 7 . Installation mounting feet ote: Refer to Figure 5 for more visual details of front cover. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 13 - LCD display on trip unit ote: The frame rating 21. I rating - FRM battery cover module should NOT be removed. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 14: Section 2: Receiving, Unpacking, And Inspection

    Step 1: Carefully open container and remove all packing/ Lifting shipping material and documentation. area Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 15 When using an appropriate lifting device, attach the lifting harness in the locations shown in Figure 9 that best fits the circumstances. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 16: Circuit Breaker Inspection

    Drawout breaker, three-pole (Breaker in drawout cassette) Drawout breaker, four-pole Fixed breaker, three-pole Fixed breaker, four-pole Drawout cassette, three-pole Drawout cassette, four-pole Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 17: Section 3: General Operation And Circuit Breaker Description

    The breaker is now in the cassette in the DISCONNECT position. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 18: Rejection Interlocks

    Figure 16. WITHDRAWN position.  Breaker in cassette  Primary connections not made  Secondary connections not made Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 19 Figure 20a. Step 2. “Click”sound detent engaged  Breaker in cassette  Primary connections made Detent reset  Secondary connections made Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 20: Installing Fixed Circuit Breaker

    The exact design con- figuration depends upon the breaker’s frame size and inter- ruption rating. Note: Full connect = hard stop Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 21: Operating Mechanism

    The status of the spring (charged or discharged) is indicated in the mechanism spring status window just above the pushbuttons. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 22: Electrical Operation

    For electrical closing, a Latch Check Switch (LCS) option is available that will block the application of the electrical close command until the breaker is ready. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 23: Rating Plug

    Non-automatic device are tested in keeping with UL489 and IEC 60947-2 require- ments. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 24: Secondary Contacts And Connection Diagrams

    Typical breaker master connection diagram - NF Figure 16 DIN 46228/4, rated connection. Typical breaker master connection diagram- RF Figure 17 Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 25: Accessory Devices

    (Figure 31 and Figure 32). The right accessory tray will accommodate up to six sets of 2a/2b auxiliary switch combinations. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 26: Shunt Trip (St)

    Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 27: Interlocked Pop-Out Mechanical Trip Indicator

    Undervoltage Release in Eaton Circuit Breakers Series NRX with PXR - Instructions for Neutral IL0131094EN RF Current Sensor - Type RF Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 28 Series NRX - Installation Instructions for Lev-In IL01301063E Key Interlocks Series NRX - Installation Instructions for Fixed IL01301014E Breaker Arc Hood Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 29: Section 5: Dimensional Drawings For Installation Of Drawout

    IL01301053E. Refer to Figure 33 through Figure 47 for selected mounting and installation dimensional information. Complete dimensional and installation drawings are avail- able from www.eaton.com/seriesnrx. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 30 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 33. Three-pole drawout cassette - rear/bottom views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 31 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 34. Three-pole drawout cassette - side views CONNECTED and TEST positions in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 32 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 35. Three-pole drawout cassette - side views DISCONNECTED and WITHDRAWN positions in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 33 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 36. Three-pole drawout cassette - top/side views with centered three-hole horizontal bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 34 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 37. Three-pole drawout cassette - top/side views with centered three-hole vertical bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 35 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 38. Three-pole drawout cassette - top/side views with offset four-hole horizontal bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 36 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 39. Three-pole drawout cassette - top/side views with offset four-hole vertical bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 37 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 40. Four-pole drawout cassette - rear/bottom views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 38 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 41. Four-pole drawout cassette - side views CONNECTED and TEST positions in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 39 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 42. Four-pole drawout cassette - side views DISCONNECTED and WITHDRAWN positions in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 40 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 43. Four-pole drawout cassette - top/side views with centered three-hole horizontal bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 41 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 44. Four-pole drawout cassette-top/side views with centered three-hole vertical bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 42 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 45. Four-pole drawout cassette- top/side views with offset four-hole horizontal bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 43 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 46. Four-pole drawout cassette - top/side views with offset four-hole vertical bus adapters in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 44 Section 5: Dimensional drawings for installation of drawout circuit breakers Figure 47. Three-pole/four-pole drawout cassette - front door cutout details in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 45: Circuit Breakers

    Refer to Figure 48 through Figure 60 for selected mounting and installation dimensional information. Complete dimen- sional and installation drawings are available from www.eaton.com/seriesnrx. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 46 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 48. Three-pole fixed breaker - rear/bottom views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 47 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 49. Three-pole fixed breaker - top/side views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 48 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 50. Three-pole fixed breaker - top/side views with centered three-hole horizontal bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 49 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 51. Three-pole fixed breaker - top/side views with centered three-hole vertical bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 50 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 52. Three-pole fixed breaker - top/side views with offset four-hole horizontal bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 51 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 53. Three-pole fixed breaker - top/side views with offset four-hole vertical bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 52 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 54. Four-pole fixed breaker - rear/bottom views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 53 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 55. Four-pole fixed breaker - top/side views in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 54 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 56. Four-pole fixed breaker - top/side views with centered three-hole horizontal bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 55 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 57. Four-pole fixed breaker - top/side views with centered three-hole vertical bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 56 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 58. Four-pole fixed breaker - top/side views with offset four-hole horizontal bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 57 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 59. Four-pole fixed breaker - top/side views with offset four-hole vertical bus adapter in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 58 Section 6: Dimensional drawings for installation of fi xed circuit breakers Figure 60. Three-pole/four-pole fixed breaker - front door cutout details in inches (mm). Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 59: Section 7: Inspection And Maintenance

    Table 6. This should also be conducted at the end of the first six months of service, if the number of operations has not been reached. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 60: Manual Operation Functional Test

    Step 5: Press the ON pushbutton to manually close the tion, rotate the second metal latch in a similar manner. breaker. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 61 Step 3: Using a Phillips screwdriver, remove the four top- inserted mounting screws from each arc chute. Figure 64. Step 3. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 62: Primary Contact Inspection

    The Rogowski type current sensors are not field replace- able. Frame rating module replacement The frame rating module is not field replaceable. Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...
  • Page 63 Circuit breaker not pushed into cassette far enough Push circuit breaker in as far as possible Protective shutters jammed/locked Clear problem Position detent is engaged Reset detent system Series NRX with PXR - type RF low voltage power (air) circuit breakers instruction manual MN013002ENH03 September 2016 www.eaton.com...

  • Page 64: Disclaimer Of Warranties And Limitation Of Liability

    Disclaimer of warranties and limitation of liability In no event will Eaton be responsible to the purchaser or The information, recommendations, descriptions, and safety user in contract, in tort (including negligence), strict liability, notations in this document are based on Eaton experience or otherwise for any special, indirect, incidental, or conse- and judgment, and may not cover all contingencies.

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