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Eaton NRX Instruction Manual
Summary of NRX
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Series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual instruction manual mn013002enh03 instructions apply to: ul489 series nrx rf frame iec izmx40 typical drawout circuit breaker and cassette typical fixed circuit breaker.
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Ii series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com table of contents section 1: introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 purpose . . . . . . . . . . . . . . . ...
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Iii instruction manual mn013002enh03 series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com right accessory tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 shunt t...
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Iv instruction manual mn013002enh03 series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 8: troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 introduction . . . . . . . . ...
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V instruction manual mn013002enh03 series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com warning the warnings and cautions included as part of the procedural steps in this manual are for personnel safety and protection of...
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Vi instruction manual mn013002enh03 series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com.
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1 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 1: introduction purpose this instructional manual is intended to generally cover the installation, operation, and maintenance of seri...
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2 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com product labeling and identification the circuit breaker nameplate, located on the right side of the breaker, provides complete rating informa...
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3 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com the circuit breaker configuration is fully described by a 20-digit catalog number located on the name plate. The dra- wout cassette can be id...
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4 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 2. Typical nrx type rf drawout circuit breaker. Ote: n refer to figure 5 for more visual details of front cover. 1. Arc chute cover 2....
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5 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 3. Typical nrx type rf drawout cassette. 1. Drawout extension rail (shown in extended and locked position) 2. Secondary connectors 3. ...
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6 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 4. Typical nrx type rf fixed circuit breaker. Ote: n refer to figure 5 for more visual details of front cover. 1. Front cover 2. Secon...
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7 section 1: introduction series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 5. Typical nrx type rf drawout circuit breaker front cover. 1. Nameplate 2. Charging handle 3. Operations counter (optional) 4. Positi...
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8 section 2: receiving, unpacking, and inspection series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 2: receiving, unpacking, and inspection suggested tools ● flat-blade/phillips head screwdrivers ● 3/8-inch le...
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9 section 2: receiving, unpacking, and inspection series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 9. Suggested lifting procedures and precautions ote: n when using an appropriate lifting device, attach the li...
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10 section 2: receiving, unpacking, and inspection series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 10. Step 3. Step 5: carefully place a breaker or cassette on a solid work surface capable of handling their w...
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11 section 3: general operation and circuit breaker description series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 3: general operation and circuit breaker description introduction caution make certain that the...
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12 section 3: general operation and circuit breaker description series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 14. Step 3. Keep in mind that all drawout circuit breakers are provided with safety interlocks t...
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13 section 3: general operation and circuit breaker description series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 17. Disconnect position. Figure 18. Test position. Figure 19. Connect position. breaker in cas...
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14 section 3: general operation and circuit breaker description series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com step 3: carefully push the circuit breaker into its compart- ment until it stops. The extension rails c...
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15 section 3: general operation and circuit breaker description series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com operating mechanism the series nrx operating mechanism is a two-stage stored energy trip-free mechanism...
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16 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 27. Step 3. Optional electrically operated accessories are available to automatically close/trip a manual...
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17 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 28. Installed pxr trip unit. Table 2. Series nrx trip units. Functions pxr20 pxr 25 lsig protection yes y...
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18 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 29. Secondary point identification. Secondary contacts and connection diagrams a maximum of 96 secondary ...
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19 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com 15. The two-point blue plugs house two female crimp con- tacts 67c3249, with the odd assigned numbers having the...
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20 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com shunt trip (st) the shunt trip opens the circuit breaker instantaneously when its coil is energized by a voltage...
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21 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com interlocked pop-out mechanical trip indicator an interlocked, red mechanical trip indicator is an optional featu...
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22 section 4: circuit breaker features and accessories series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com table 5. Series nrx publications. Description publication number frame series nrx with pxr - instructions for ne...
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23 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 5: dimensional drawings for installation of drawout circuit breakers general se...
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24 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 33. Three-pole drawout cassette - rear/bottom views in inches (mm)..
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25 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 34. Three-pole drawout cassette - side views connected and test positions in inc...
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26 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 35. Three-pole drawout cassette - side views disconnected and withdrawn position...
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27 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 36. Three-pole drawout cassette - top/side views with centered three-hole horizo...
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28 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 37. Three-pole drawout cassette - top/side views with centered three-hole vertic...
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29 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 38. Three-pole drawout cassette - top/side views with offset four-hole horizonta...
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30 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 39. Three-pole drawout cassette - top/side views with offset four-hole vertical ...
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31 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 40. Four-pole drawout cassette - rear/bottom views in inches (mm)..
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32 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 41. Four-pole drawout cassette - side views connected and test positions in inch...
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33 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 42. Four-pole drawout cassette - side views disconnected and withdrawn positions...
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34 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 43. Four-pole drawout cassette - top/side views with centered three-hole horizon...
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35 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 44. Four-pole drawout cassette-top/side views with centered three-hole vertical ...
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36 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 45. Four-pole drawout cassette- top/side views with offset four-hole horizontal ...
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37 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 46. Four-pole drawout cassette - top/side views with offset four-hole vertical b...
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38 section 5: dimensional drawings for installation of drawout circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 47. Three-pole/four-pole drawout cassette - front door cutout details in inches ...
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39 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 6: dimensional drawings for installation of fi xed circuit breakers general secti...
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40 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 48. Three-pole fixed breaker - rear/bottom views in inches (mm)..
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41 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 49. Three-pole fixed breaker - top/side views in inches (mm)..
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42 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 50. Three-pole fixed breaker - top/side views with centered three-hole horizontal ...
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43 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 51. Three-pole fixed breaker - top/side views with centered three-hole vertical bu...
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44 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 52. Three-pole fixed breaker - top/side views with offset four-hole horizontal bus...
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45 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 53. Three-pole fixed breaker - top/side views with offset four-hole vertical bus a...
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46 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 54. Four-pole fixed breaker - rear/bottom views in inches (mm)..
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47 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 55. Four-pole fixed breaker - top/side views in inches (mm)..
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48 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 56. Four-pole fixed breaker - top/side views with centered three-hole horizontal b...
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49 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 57. Four-pole fixed breaker - top/side views with centered three-hole vertical bus...
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50 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 58. Four-pole fixed breaker - top/side views with offset four-hole horizontal bus ...
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51 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 59. Four-pole fixed breaker - top/side views with offset four-hole vertical bus ad...
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52 section 6: dimensional drawings for installation of fi xed circuit breakers series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 60. Three-pole/four-pole fixed breaker - front door cutout details in inches (mm)..
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53 section 7: inspection and maintenance series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com section 7: inspection and maintenance general warning failure to inspect, clean, and maintain circuit breakers can reduce equi...
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54 section 7: inspection and maintenance series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 61. Typical nameplate information. Manual operation functional test perform the following seven steps and verify if the...
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55 section 7: inspection and maintenance series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com figure 62. Step 1. Step 2: (drawout breakers) once both latches are released the inner cradle can be compressed until the tool...
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56 section 8: troubleshooting series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com step 7: when inspections are complete, secure arc chutes in place with their mounting screws. Remove screwdriver and verify that secondar...
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57 section 8: troubleshooting series nrx with pxr - type rf low voltage power (air) circuit breakers instruction manual mn013002enh03 september 2016 www.Eaton.Com table 7. Circuit breaker troubleshooting guide. Symptom probable cause corrective action the circuit breaker trips open (red fault trip i...
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