characteristic curves for 1150 trip units ad01301005eh02...trip (top) = longtime *1296/i ,where i is...

Application Data AD01301005E effective August 2011 Series NRX

Characteristic Curves for Series NRXType NF and RF Frame with Digitrip 1150 Trip Unit

Last Revision

Long Delay I2t, Short Delay Flat and I2t response Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

August 2011

Long Delay I4t, Short Delay Flat response Time-Phase Current Characteristic Curve based on Ir for SeriesNRX Type NF Frame and Type RF Frame Circuit Breakers

IEEE Moderately Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

IEEE Very Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

IEEE Extremely Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

IEC-A Normal Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

IEC-B Very Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

IEC-C Extremely Inverse, Short Delay Flat Time-Phase Current Characteristic Curve based on Ir for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

Instantaneous Time-Phase Current Characteristic Curve based on In for Series NRX Type NF Frame Circuit Breakers

Maintenance Mode Trip Time-Phase Current Characteristic Curve for Series NRX Type NF Frame Circuit Breakers

Ground (Earth) Fault Flat and I2t – Trip or Alarm Only (LSIA style) Time-Ground Current Characteristic Curve based on In for Series NRX Type NF Frame and Type RF Frame Circuit Breakers

Maintenance Mode Trip Time-Phase Current Characteristic Curve for Series NRX Type RF Frame Circuit Breakers

Instantaneous Time-Phase Current Characteristic Curve based on In for Series NRX Type RF Frame Circuit Breakers

August 2011

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August 2011

August 2011

August 2011

August 2011

Characteristic Curves for Series NRX Type NF and RF Frame with Digitrip1150 Trip Unit

effective May 2011

Application Data AD01301005E Effective August 2011

searching for AD01301005E.

Series NRX Digitrip 1150 / 1150i - Curves

2 I T.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

500

10

20

2

3

4

5

6

7

8

9

10

20

30

40

5

0

8

0 7

0

6

0

9

0 1

00

Range: 2-24 seconds @ 6x Ir

24

10

4

2

0.50s 0.50s

August 2011

Adjustable LONG PU 0.5 to 1.0x In = Ir

with 0.05 increments See Note 1

Minimum persistence For 0.10s setting

Adjustable LONG TIME 2-24 seconds

(+0 -30%) @ 6x Ir With 0.5s increments

See Note 6

Max Total clearing time

Minimumpersistence

See Notes 4 & 8

2 Adjustable I T response

SHORT TIME 0.10 to 0.50 seconds with 0.05s increments

See Note 5

Circuit Breaker Time/Current Curves (Phase Current) Series NRX Type NF Frame and Type RF Frame Circuit Breakers

2 2Response: Long Delay (I T) & Short Delay Trip (FLAT & I T)This curve is for 50Hz or 60Hz applications.

Notes:

1. This curve shown as a multiple of the LONG PU Setting (I ). The actual pickup point (indicated by r

rapid flashing of Unit Status LED on the product) occurs at 110% of the I , current, with a ±10% r

tolerance.2

LongTIME Curve Equation: Trip = LongTIME *36/ I , where I is a multiple of I (top).r 2

LongTIME Curve Equation: Trip = LongTIME *36/ I * 0.70 (bottom).

The SHORT TIME Function and the LongTIME function act independently and the entire set of LongTIME curves continue to be active even after the curves intersect.

2. If Long Delay Memory is enabled, trip times may be shorter than indicated on this chart

3. The SHORT PU points have 100% ± 10% tolerance.

4. SHORT SLOPE: FLATTolerance is +0/ -90 ms for all settings except

0.10s setting is 0.05 to 0.130.15s setting is 0.09 to 0.17

2

5. SHORT SLOPE: I T2I T slope flattens out at 8 x I for top of band with FLAT time minimum value prevailing for bottom r

of band.2

Curve Trip Equation: Trip = SHORT TIME * 64/ I , where I is a multiple of I (top) r 2

Curve Trip Equation: Trip = SHORT TIME * 64/ I * 0.70 (bottom) The above equations indicate tolerance is

+0 / -40% for settings 0.1 to 0.25+0 / -30% for settings 0.3 to 0.50

2 For all curves the lower flat response time value projected to I T line will determine the other

Break Point and shape of the curve.

6. The end of the curve is determined by the interrupting rating of the circuit breaker.

7. Curve applies from -20°C to +55°C ambient. Temperatures above +85°C cause automatic trip.

8. Minimum persistence refers to the time at which the breaker will not trip for a given setting.

9. These curves are comprehensive for Series NRX NF and RF frame circuit breakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for the trip unit, the breaker opening and the interruption of the current.

0.10s

Max clearing time

Break point @ 8x I to FLATr

AdjustableSHORT PU 2.0x to 10x

With 0.5 increments

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

Current in Multiples of Long Pickup ( I )r

Adjustable SHORT TIME 0.10s to 0.50s

With 0.05 stepsSee Note 4

80009000

10000

800

900

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4000

2000

600

3000

1000

700

5000

6000

7000

89

5

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30

7

6

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70

60

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

1

2

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8.9

.5

.4

.3

.7

.6

0.20s

Series NRX Digitrip 1150 / 1150i - Curves

4I T

Range: 1-5 seconds @ 6x Ir

5

1

August 2011

Adjustable LongTIME 1-5 seconds

(+10 -40%) @ 6x Ir With 0.5s increments

See Note 6

0.10s

0.50s

See Note 3

Minimum persistenceSee Note 8

Circuit Breaker Time/Current Curves (Phase Current)

Series NRX Type NF Frame and Type RF Frame Circuit Breakers4

Response: Long Delay (I T) & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:

1. This curve is shown as a multiple of LONG PU Setting (I ).r

The actual Pickup point occurs at 110% of the I , current, with a ±10% tolerance. r

LongTIME Curve Equation:4

Trip (top) = LongTIME *1296/I ,where I is a multiple of Ir.4

Trip (bottom) = LongTIME *1296/I * 0.70.


4 3. In this time region <= 0.5 seconds the I T Long TIME function will flatten out and be no faster than the Short TIME setting. This is to avoid a notch in graph.

4. The SHORT PU points have conventional 100% ± 10% tolerance.

5. SHORT TIME: FLAT only - setting 0.1s through 0.5s in .05s increments. Tolerance is +0/ -80 ms of setting except




8. Minimum persistence refers to the time at which the breaker will not trip for a given setting

9. These curves are comprehensive for Series NRX NF and RF frame circuit breakersincluding all frame sizes, ratings, and constructions. The total clearing times showninclude the response time for the trip unit, the breaker opening and the interruption of the current.

Adjustable SHORT PU 2.0x to 10x with 0.5

increments

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

500

10

20

80009000

10000

800

900

400

4000

2000

600

3000

1000

700

5000

6000

7000

89

5

4

30

7

6

100

200

80

90

50

40

300

70

60

Available LONG PUSettings (I )r

0.5 to 1 x I = In r

in 0.05 increments

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70


.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

80

90

100


with 0.05 stepsSee note 5

Series NRX Digitrip 1150 - IEEE Curves - Moderately Inverse

August 2011

0.50 s

0.50

0.20

2.00

4.00

1.00

0.80

0.60

0.30

3.00

1.50

3.50

2.50

4.50

5.00

0.10

0.40

Adjustable PICKUP setting 0.5 to 1.0x I = In r

with 0.05 incrementsSee Note 3

Minimum persistenceSee Notes 5, 7

Adjustable SHORT PU 2.0x to 10x Ir

With 0.5 incrementsSee Note 3

AdjustableSHORT TIME 0.10s to 0.50s

With 0.05 increments

See Note 5

Adjustable TimeDial Setting 0.10 to 5.00

With 0.10 increments See Note 2


Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Moderately Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:

1. This curve is shown as a multiple of the PICKUP setting (I ). The TimeDial r

setting combined with SHORT PU and SHORT TIME setting (shown in heavy lines) depict the IEEE Moderately Inverse response. The Instantaneous, shown as a separate response, can be set to OFF.

2. Curve Equation: 0.0 2 Trip = TimeDial *[0.0515/ ( I -1) + 0.114], where I is a multiple of I .r

For current > 1.2xI tolerance is [±15%] or [-15%, +90 ms], whichever is larger. r

TimeDial curve goes to flat response at 14xI with a shorter time of TimeDial r

function or SHORT TIME function prevailing if curves overlap. The ShortTime function and the TimeDial function act independently and the entire TimeDial curves continue to be active even after the curves intersect.

3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the Ir, current, with a ±10% tolerance. The SHORT PU settings have conventional 100% ± 10% as their pick up point.


5. SHORT TIME: FLAT only Tolerance is +0/ -80 ms of setting except




8. The curves are comprehensive for Series NRX NF and RF frame circuitbreakers including all frame sizes, ratings, and constructions. The total clearing times shown include the response time for the trip unit, the breaker opening and the interruption of the current.


.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

500

10

20

80009000

10000

800

900

400

4000

2000

600

3000

1000

700

5000

6000

7000

89

5

4

30

7

6

100

200

80

90

50

40

300

70

60

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

Series NRX Digitrip 1150 - IEEE Curves - Very Inverse

0.80

0.20

2.00

1.00

1.50

0.30

0.40

0.60

3.00

2.50

5.00

4.50

4.00

3.50

August 2011

0.50 s

0.50






AdjustableSHORT TIME 0.10s to 0.50s With 0.050sincrements See Note 5


Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Very Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:


setting combined with SHORT PU and SHORT TIME setting (shown in heavy lines) depict the IEEE Very Inverse response. The Instantaneous, shown as a separate response, can be set to OFF.

2. Curve Equation: 2

Trip = TimeDial *[19.61/(I -1) + 0.491], where I is a multiple of I .r For current > 1.2xI tolerance is [±15%] or [-15%, +90 ms], whichever is larger. r



3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the Ir, current, with a ±10% tolerance. The SHORT PU settings have conventional 100% ± 10% as their pick up point.







.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100


1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

500

10

20

80009000

10000

800

900

400

4000

2000

600

3000

1000

700

5000

6000

7000

89

5

4

30

7

6

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200

80

90

50

40

300

70

60

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60



Series NRX Digitrip 1150 - IEEE Curves - Extremely Inverse

2.00

3.00

4.00

5.00

August 2011

0.50 s

2.50

3.50

4.50

0.20

0.30

0.80

0.50

0.40

0.60

1.00

1.50








Current in Multiples of Pickup ( I )r


Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Extremely Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:


setting combined with SHORT PU and SHORT TIME setting (shown in heavy lines) depict the IEEE Extremely Inverse response. The Instantaneous, shown as a separate response, can be set to OFF.


Trip = TimeDial * [28.2/(I - 1) + 0.1217], where I is a multiple of I .r For current > 1.2xI tolerance is , whichever is larger. r



3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the I , current, with a ±10% tolerance. The r

SHORT PU settings have conventional 100% ± 10% as their pick up point.







[±15%] or [-15%, +90 ms]

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

500

10

20

80009000

10000

800

900

400

4000

2000

600

3000

1000

700

5000

6000

7000

89

5

4

30

7

6

100

200

80

90

50

40

300

70

60

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100

AdjustableSHORT TIME

0.10s to 0.50s With 0.05Increments

See Note 5

Series NRX Digitrip 1150i - IEC Curves - IEC-A (Normal Inverse).5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 1

0 20

30

40

50

60

70

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100

1.00

0.70

0.50

0.20

0.30

0.50 s

August 2011

0.10

0.15

0.05

0.90

0.80

0.60

0.40

Adjustable PICKUP0.5 to 1.0x I = In r



Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Normal Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:

1. This curve is shown as a multiple of the PICKUP setting (I ). Ther

TimeDial setting combined with SHORT PU and SHORT TIME setting(shown in heavy lines) depict the IEC-A response. The Instantaneous,shown as a separate response, can be set to OFF.

0.0 22. Curve Equation: Trip = TimeDial *[ 0.14 / ( I -1) ]where I is a multiple of I .r

For current > 1.2xI tolerance is [±15%] or [-15%, +90 ms], whichever is r

larger.

TimeDial curve goes to flat response at 14xI with a shorter time ofr

TimeDialfunction or SHORT TIME function prevailing if curves overlap.The ShortTime function and the TimeDial function act independently and the entire TimeDial curves continue to be active even after the curves intersect.

3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the I , current, with a ±10% tolerance.r

The SHORT PU settings have conventional 100% ± 10% as their pick uppoint.

4. The end of the curve is determined by the interrupting rating of thecircuit breaker.

5. SHORT TIME: FLAT onlyTolerance is +0/ -80 ms of setting except0.10s setting is 0.06 to 0.130.15s setting is 0.10 to 0.17

6. Curve applies from -20°C to +55°C ambient. Temperatures above 85°Ccause automatic trip.


8. The curves are comprehensive for Series NRX NF and RF frame circuit breakers including all frame sizes, ratings, and constructions. The totalclearing times shown include the response time for the trip unit, the breaker opening and the interruption of the current.

Adjustable TimeDialSetting 0.05 to 1.00


Adjustable SHORT PU2.0x to 10x Ir



AdjustableSHORT TIME0.10s to 0.50s


Current in Multiples of of Pickup ( I )r

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

.01

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.4

.3

.5

.6

.7

.8

.91

2

3

4

5

6

7

89

10

20

30

40

50

60

708090

100

300

400

500

600

700

800900

200

1000

2000

3000

7000

80009000

4000

5000

6000

10000

Series NRX Digitrip 1150i - IEC Curves - IEC-B (Very Inverse).5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100

August 2011

1.00

0.70

0.50

0.20

0.30

0.10

0.15

0.90

0.80

0.60

0.40




Adjustable TimeDialSetting 0.10 to 1.00


AdjustableSHORT TIME0.10s to 0.50s



Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Very Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:

1. This curve is shown as a multiple of the PICKUP setting (I ). The TimeDialr

setting combined with SHORT PU and SHORT TIME setting (shown in heavylines) depict the IEC-B response. The Instantaneous, shown as a separate response, can be set to OFF.

2. Curve Equation: Trip = TimeDial *[ 13.5 / (I -1)], where I is a multiple of I .rFor current > 1.2xI tolerance is [±15%] or [-15%, +90 ms], whichever is larger. r



3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the I , current, with a ±10% tolerance. The SHORT PU r

settings have conventional 100% ± 10% as their pick up point.

4. The end of the curve is determined by the interrupting rating of the circuitbreaker.



6. Curve applies from -20°C to +55°C ambient. Temperatures above +85°C causeautomatic trip.


8. The curves are comprehensive for Series NRX NF and RF frame circuit breakersincluding all frame sizes, ratings, and constructions. The total clearing timesshown include the response time for the trip unit, the breaker opening and theinterruption of the current.

Current in Multiples of Pickup ( )Ir

Adjustable SHORT PU2.0x to 10x Ir


0.50 s

9000

2 H

ours

10000

70008000

5000

6000

3000

4000

1 H

our

2000

1000900800700

600

500

400

300

200

100

50

9080

70

60

40

1 M

inu

te

30

20

109

.9

8

7

6

5

4

3

2

1

TIM

E I

N S

EC

ON

DS

.8

.7

.6

.5

.4

.3

.2

.1

.07

.06

.05

.04

.03

.09

.08

.02

.01

Series NRX Digitrip 1150i - IEC Curves - IEC-C (Extremely Inverse).5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9

10

20

30

40

50

60

70

80

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

70

80

90

100

0.50 s

August 2011

0.70

0.30

0.60

0.40

1.00

0.90

0.50

0.80









Series NRX Type NF Frame and Type RF Frame Circuit BreakersResponse: Extremely Inverse & Short Delay TripThis curve is for 50Hz or 60Hz applications.

Notes:


setting combined with SHORT PU and SHORT TIME setting (shown in heavy lines) depict the IEC-C response. The Instantaneous, shown as a separate response, can be set to OFF.


Trip = TimeDial *[ 80.0/ (I - 1)], where I is a multiple of I .r For current > 1.2xI tolerance is [±15%] or [-15%, +90 ms], whichever is larger. r



3. The actual pick up point (indicated by rapid flashing of Unit Status LED on the product) occurs at 110% of the I , current, with a ±10% tolerance. The SHORT r

PU settings have conventional 100% ± 10% as their pick up point.

4. The end of the curve is determined by the interrupting rating of the breaker.



6. Curve applies from -20°C to +55°C ambient; temperatures above 85°C cause automatic trip.



Current in Multiples of Pickup ( I )r



0.20

1 H

ou

r2

Ho

urs

1 M

inute

Tim

e in

Seco

nds

2000

3000

4000

5000

6000

7000

8000

10000

1000

30

40

50

80 70

60

90

20

9000

900 800 700

600

500

400

300

200

100

10 9 8

7

6

5

4

3

2

1 .9

.09 .08

.07

.6

.5

.4

.3

.2

.1

.8

.7

.06

.05

.04

.03

.02

.01

Current in Multiples of Rating ( I )n

Series NRX - Type NF Frame with Digitrip1150 / 1150i - Instantaneous Curve

.01

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

TIM

E I

N S

EC

ON

DS

1 H

OU

R

1 2 3 4.5 .6 .7 .8 .9

10

205 6 7 8 9

1 2 3 4.5 .6 .7 .8 .9 10

20

30

40

50 5 6 7 8 9

Available AdjustableInstantaneous

Setting 2 to 12x I ± 10%n

(See Notes 4, 6)

June 2011

Circuit Breaker Time / Current Curves(Phase Current)

Series NRX - Type NF Frame Circuit BreakersResponse: Instantaneous TripThis curve is for 50Hz and 60Hz applications.

Notes:


2. This curve is shown as a multiple of the Rating Plug (I ).n


4. The Instantaneous settings have conventional 100% ±10% as the pickup points.

5. Total clearing times shown include the response times of the trip unit, the breaker opening and the interruption of the current.

6. An additional, fixed High Instantaneous Trip function is provided in the circuit breaker set to pickup at 90kA Instantaneous peak current level.

This protection is functional even when the Instantaneous is set to the OFF position.

7. These curves are comprehensive for Series NRX - Type NF frame circuitbreakers, including all frame sizes, ratings, and constructions. The totalInstantaneous clearing times shown are conservative and consider themaximum response times of the trip unit, the circuit breaker opening, and the interruption of the current under factors that contribute to worst caseconditions, like: maximum rated voltages, single phase interruption, and

minimum power factor. Faster clearing times are possible depending on thespecific system conditions, the type of circuit breaker applied, and if any arc reduction settings are employed. Contact Eaton Corporation for additionalInformation.

Thecircuit breaker’s Short Delay rating is marked according to Test Standards with a 42kA current value.

30

40

50

3

4

6

8

10

Symmetrical RMS Current (kA)

10

20

30

40

100

200

300

400

500

50

60

70

80

90

1000

600

700

800

900

HighInstantaneous(See Note 6)

.01

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

TIM

E IN

SE

CO

ND

S

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

1 H

OU

R

2

12


Series NRX - Type RF Frame with Digitrip1150 / 1150i - Instantaneous Curve

.01

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

TIM

E I

N S

EC

ON

DS

1 H

OU

R

1 2 3 4.5 .6 .7 .8 .9

10

205 6 7 8 9

1 2 3 4.5 .6 .7 .8 .9 10

20

30

40

50 5 6 7 8 9

Available AdjustableInstantaneous

Setting 2 to 12x I ± 10%n

(See Notes 2, 3)

August 2011

Circuit Breaker Time / Current Curves(Phase Current)

Series NRX - Type RF Frame Circuit BreakersResponse: Instantaneous TripThis curve is for 50Hz and 60Hz applications.

Notes:


2. This curve is shown as a multiple of the Rating Plug (I ).n

3. The Instantaneous settings have conventional 100% ±10% as the pickup points.

4. On the RF Frame, an additional, fixed High Instantaneous Trip function is provided in the circuit breaker.

This protection is functional even when the Instantaneous is set to the OFF position.

5. Contact Eaton Corporation for availability of the 85kA and 100kA options

6. These curves are comprehensive for Series NRX - Type NF frame circuitbreakers, including all frame sizes, ratings, and constructions. The totalInstantaneous clearing times shown are conservative and consider themaximum response times of the trip unit, the circuit breaker opening, and the interruption of the current under factors that contribute to worst caseconditions, like: maximum rated voltages, single phase interruption, and

minimum power factor. Faster clearing times are possible depending on thespecific system conditions, the type of circuit breaker applied, and if any arc reduction settings are employed. Contact Eaton Corporation for additionalInformation.

The circuit breaker’s Short Delay rating is marked according to Test Standards with a preset value.

30

40

50

3

4

6

8

10

Symmetrical RMS Current (kA)

10

20

30

40

100

200

300

400

500

50

60

70

80

90

1000

600

700

800

900

.01

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

TIM

E IN

SE

CO

ND

S

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

1 H

OU

R

2

12

HighInstantaneous

RF Frame ONLY(See Notes 4 & 5)

65kA 85kA

100kA See Note 1

See Note 1

65kA85kA

100kA

Symmetrical RMS Current

Inst PeakAsymmetrical

65kA85kA

100kA

138kA140kA212kA

RMS Current (kA)

August 2011

.01

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

TIM

E I

N S

EC

ON

DS

1 H

OU

R

4.0

1 2 3 4.5 .6 .7 .8 .9

10

205 6 7 8 9

.01

1 2 3 4.5 .6 .7 .8 .9

10

20

30

40

50

60

70

80

90

100

200

100

300

400

500

800

700

600

900 5 6 7 8 9

.02

.03

.04

.05

.06

.07

.08

.09

.1

.2

.3

.4

.5

.6

.7

.8

.9

TIM

E IN

SE

CO

ND

S

Maintenance Mode Characteristic

Series NRX - Type NF Frame Circuit BreakersResponse: Maintenance Mode TripThis curve is for 50Hz and 60Hz applications.

Notes:

1. The Maintenance Mode feature must be ENABLED via trip unit keypad, remote switch, or Communications for these curves to apply. Maintenance Mode IN USE message is displayed.


4. The Digitrip 1150ARM will light the Instantaneous LED for a Maintenance Mode Trip.

5. Nominal Reduction Values have a tolerance of ±15%

6. The total clearing times shown are conservative and consider the maximum response times of the trip unit, the circuit breaker opening, and the interruption of the current under factors that contribute to worst case conditions, like: maximum rated voltages, single phase interruption, and minimum power factor. Faster clearing times are possible depending on the specific system conditions, and the type of NRX Circuit Breaker applied.

Contact Eaton Electrical for additional information.

20 30

40

50

60

70

80

90

200

See Note 2

20

1000

Maximum Available Arc Flash

Reduction Setting1.0kA

5.0

2.0

3.0

1.0

Minimum Available Arc Flash


Series NRX Type NF Frame using Digitrip 1150 /1150i with Maintenance Mode Trip

RMS Current (kA)

August 2011

Series NRX Type RF Frame using Digitrip 1150 /1150i with Maintenance Mode Trip

.01

2

60

70

8090

100

1000900800

700

600

500

400

300

200

2000

3000

4000

5000

6000

70008000

900010000

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

3

4

5

6

7

8

910

20

30

40

501 M

INU

TE

2 H

OU

RS

TIM

E I

N S

EC

ON

DS

1 H

OU

R

16.0

1 2 3 4.5 .6 .7 .8 .9

10

205 6 7 8 9

.01

1 2 3 4.5 .6 .7 .8 .9

10

20

30

40

50

60

70

80

90

100

200

100

300

400

500

800

700

600

900 5 6 7 8 9

.02

.03

.04

.05

.06

.07

.08

.09

.1

.2

.3

.4

.5

.6

.7

.8

.9

TIM

E IN

SE

CO

ND

S

Maintenance Mode Characteristic

Series NRX - Type RF Frame Circuit BreakersResponse: Maintenance Mode TripThis curve is for 50Hz and 60Hz applications.

Notes:

1. The Maintenance Mode feature must be ENABLED via trip unit keypad, remote switch, or Communications for these curves to apply. Maintenance Mode IN USE message is displayed.


4. The Digitrip 1150ARM will light the Instantaneous LED for a Maintenance Mode Trip.

5. Nominal Reduction Values have a tolerance of ±15%

6. The total clearing times shown are conservative and consider the maximum response times of the trip unit, the circuit breaker opening, and the interruption of the current under factors that contribute to worst case conditions, like: maximum rated voltages, single phase interruption, and minimum power factor. Faster clearing times are possible depending on the specific system conditions, and the type of NRX Circuit Breaker applied.

Contact Eaton Electrical for additional information.

20 30

40

50

60

70

80

90

200

See Note 2

20

1000

Maximum Available Arc Flash


20.0

Minimum Available Arc Flash


12.0

8.0

4.0

.01

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

2

3

4

5

6

78

910

20

TIM

E IN

SE

CO

ND

S

.1.0

9.0

8


Available GND PU Setting0.24to 1. 0x I ±10%

with steps of 0.01.See Note 5

n

Available GND PU Setting0.24 to 1.0x I ±10%n

with steps of 0.01.See Note 5

Available FLAT responseGROUND TIME

0.1 to 0.5 secondswith 0.05s increments

FLAT response for GROUND TIME

See Note 7

See Notes 6, 7

August 2011

Series NRX - Type NF and RF Frame with Digitrip 1150 / 1150i - Ground (Earth) Curve

Series NRX - Type NF and RF Frame Circuit Breakers2Response: Ground (Earth) Trip (FLAT & I T)

This curve is for 50Hz or 60Hz applications.

Notes:


2. The curve is shown as a multiple of the Rating Plug (I ).n

3. The Ground Fault settings have conventional 100% ± 10% as their pick up points.

4. Except as noted, tolerances on current levels are ±10% of values shown in chart.

5. The Ground Fault Pickup is limited to 1200A setting for the Digitrip 1150 unit. The Digitrip 1150i unit only has a minimum Earth Pickup setting starting at 0.1 x I .n

6. Ground Slope: FLAT Tolerance is +0 / -80 ms except 0.10s setting band is 0.05 to 0.13

0.15s setting band is 0.09 to 0.17

2 7. Ground Slope: I T

2 I T slope flattens out at 0.625x I for top of band with FLAT time minimum value n

prevailing for bottom of band. 2

Curve Trip Equation: Trip = (GROUND TIME) x 0.39 / I (top band) n2 Curve Trip Equation: Trip = ((GROUND TIME) x 0.39 / I ) * 0.70 (bottom band) n

The above equations indicate tolerance is +0 / -30% for all settings except 0.10s is +30% -25%

0.15s is +20% -25% 0.20s is +10% -25%

8. The curves are comprehensive for Series NRX NF and RF frame circuit breakersincluding all frame sizes, ratings, and constructions. The total clearing times shown include the response time for the trip unit, the breaker opening and theinterruption of the current.

Circuit Breaker Time/Current Curves (Ground Current)

0.50s 0.50s

0.10s

Break point @ 0.625x I to FLATn

1 M

INU

TE

1 H

OU

R2 H

OU

RS

TIM

E IN

SE

CO

ND

S

1

2

3

.01

.02

.08

.09

.05

.04

.03

.07

.06

.1

.2

.8

.9

.5

.4

.3

.7

.6

500

10

20

80009000

10000

800

900

400

4000

2000

600

3000

1000

700

5000

6000

7000

89

5

4

30

7

6

100

200

80

90

50

40

300

70

60

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

20

30

40

50

60

.2 .4.3 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 910

2Available I T Response

GROUND TIME 0.1 to 0.5 seconds

with 0.01s increments

Min Persistencefor 0.1s setting

Max Clearing Time

.07

.06

.05 .2 .4.3 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9

10

effective August 2011

Disclaimer of warranties and limitation of liability

The information, recommendations, descriptions, and safety notations in this document are based on Eaton Corporation’s (“Eaton”) experience and judgment, and may not cover all contin-

should be consulted.

Sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling poli-cies or other contractual agreement between Eaton and the pur-chaser.

THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, 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 MODIFY ANY CONTRACT BETWEEN THE PARTIES.

In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability, or otherwise for any special, indirect, incidental, or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations, and descrip-tions contained herein.

The information contained in this manual is subject to change without notice.

Eaton CorporationElectrical Group1000 Cherrington ParkwayMoon Township, PA 15108United States877-ETN-CARE (877-386-2273)Eaton.com

© 2010 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. AD01301005EH02August 2011

PowerChain Management is a registered trademark of Eaton Corporation.

All other trademarks are property of their respective owners.

Application DataAD01301005ECharacteristic Curves for Series NRXType NF and RF Frame with Digitrip1150 Trip Unit

Data 1301005E effective July 2011 Series NRX

characteristic curves for 1150 trip units ad01301005eh02...trip (top) = longtime *1296/i ,where i is...

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