Bulletin 140U Molded Case Circuit Breakers...CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING 10,000...

Bulletin 140U

Molded Case Circuit Breakers

11Visit our website: www.ab.com/catalogs

Multitap End Cap

Optional Optional Optional

140U-J-MTL3A 140U-J-MTL6A 140U-J-ECM

Aluminum Aluminum MoldedHousing

1/4…20 screw 1/4…20 screw —

50 lb-in 50 lb-in —

5.6 N•m 5.6 N•m —

Cu/Al Cu/Al —

60/75°C 60/75°C —

(3) (6) —

(A) 3/8…1/2 in. (B) 3/4…7/8 in. (C) 1-1/4…1-3/8 in. (A) 3/8…1/2 in. (B) 3/4…7/8 in. (C) 1-1/4…1-3/8 in. —

(A) 9…13 mm (B) 19…22 mm (C) 32…35 mm (A) 9…13 mm (B) 19…22 mm (C) 32…35 mm —

#14…#2 #14…#6 —

2.5…25 2.5…10 —

Allen - 5/32 in. (4 mm) Allen - 3/32 in. Allen - 4 mm

70 lb-in 25 lb-in 275' Lb-in

7.9 N•m 2.8 N•m 31 N•m


140U-K-MTL3A 140U-K-MTL6A 140U-K-ECM


.375 x 25 screw .375 x 25 screw —

72 -96 lb-in 72 -96 lb-in —

8.6…10.8 N•m 8.6…10.8 N•m —

Cu/Al Cu/Al —

60/75°C 60/75°C —

(3) (6) —

(A) 9/16.…3/4 in. (B) 1-3/16.…1-1/2 in. (C) 1-7/8…2-1/4 in. (A) 9/16.…3/4 in. (B) 1-3/16.…1-1/2 in. (C) 1-7/8…2-1/4 in. —

(A) 14…19 mm (B) 30…38 mm (C) 48…57 mm (A) 14…19 mm (B) 30…38 mm (C) 48…57 mm —

#12…2/0 #14…2/0 —

4…70 2.5…70 —

Allen - 3/16 in. (X mm) Allen - 1/8 in. (3 mm) Allen - 8 mm

120 lb-in 25 lb-in 275 Lb-in

13.5 N•m 2.8 N•m 31 -m

Bulletin 140U


12 Visit our website: www.ab.com/catalogs

Terminal and Lug Specifications

Frame Size

Terminals Lugs

Specification Specification Box Lugs Mechanical Lugs

L

Material Std/Optional — — — — — —

Dim.

A 1(25.4) Cat. No. — — — — — —

B 15/16(23.81) Material — — — — — —

C 1/2(12.7) Terminal FastenerHardware — — — — — —

Fastener Slotted TerminalFastenerTorque

Lb-in — — — — — —

TorqueLb-in 42 — — — — — —

N•m 3 Cable Type — — — — — —

A

B

C

Cable TemperatureRating — — — — — —

Cable Quantity — — — — — —

Wire StripLength

in. — — — — — —

mm — — — — — —

Wire RangeAWG — — — — — —

mm2 — — — — — —

Terminal Type — — — — — —

Wire TorqueLb-in — — — — — —

N•m — — — — — —

M

Material Std/Optional — Optional Optional — —

Dim.

A 1-1/16(26.99) Cat. No. — 140U-M-TLA2

140U-M-TLC2 — —

B 15/16(23.81) Material — Aluminum Copper — —

d 1/2(12.7) Terminal FastenerHardware — — —

Fastener Socket TerminalFastenerTorque

Lb-in — 275 275 — —

TorqueLb-in 275/400 N•m — 31.1 31.1 — —

N•m 31.1/45.2 Cable Type — Cu/Al Cu only — —

A

B

C

Cable TemperatureRating — 60/75°C 60/75°C — —

Cable Quantity — (2) (2) — —

Wire StripLength

in. — 1-1/16 1-1/16 — —

mm — 26.99 26.99 — —

Wire RangeAWG — 310…350 250…350 — —

mm2 — 95…150 120…300 — —

Terminal Type — Socket Socket — —

Wire TorqueLb-in — 275 275 — —

N•m — 31.1 31.1 — —

Optional

140U-M-TLA4

Aluminum

—

275

31.1

Cu/Al

60/75°C

(4)

1 1/16

26.99

400…500

185…240

Socket

275

31.1

N•m

Bulletin 140U



End Cap


140U-L-MTL3 140U-L-MTL6 140U-L-ECM


0.375 x 25 screw 0.375 x 25 screw —

72 -96 lb-in 72 -96 lb-in —

8.6…10.8 N•m 8.6…10.8 N•m —

Cu/Al Cu/Al —

60/75°C 60/75°C —

(3) (6) —

(A) 9/16.…3/4in.

(B) 1-3/16.…1-1/2 in.

(C) 1-7/8…2-1/4 in.

(A) 9/16.…3/4in.

(B) 1-3/16.…1-1/2 in.

(C) 1-7/8…2-1/4 in. —

(A) 14…19 mm (B) 30…38mm

(C) 48…57mm (A) 14…19 mm (B) 30…38

mm(C) 48…57

mm —

#12…2/0 #14…2/0 —

4…70 2.5…70 —

Allen - 3/16 in. (X mm) Allen - 1/8 in. (3 mm) Allen - 8 mm

120 lb-in 25 lb-in 275'Lb-in

13.5 N•m 2.8 N•m 31 N•m

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

— — —

Multitap

Bulletin 140U



Terminal and Lug Specifications

Frame Size

Terminals Lugs

Specification Specification Box Lugs Mechanical Lugs

N

Material CU/Plate Std/Optional — Optional Optional —

Dim.

A 1/2”(12.7) Cat. No. — 140U-N-TLA4 140U-N-TLA3 —

B 3/8”(9.53) Material — Aluminum Copper —

C 1/8”(3.175) Terminal FastenerHardware — —

Fastener Slip on boxlug

TerminalFastenerTorque

Lb-in — 35…45 35…45 —

TorqueLb-in — N•m — 4…5 4…5 —

N•m — Cable Type — CU/Al Cu/Al —

A

B

C

Cable TemperatureRating — 60/75°C 60/75°C —

Cable Quantity — (4) (3) —

Wire StripLength

in. — 4-3/8 4-3/8 —

mm — 111.125 111.125 —

Wire RangeAWG — 4/0…500MCM 3/0…400 MCM —

mm2 — 11.7…240 85…185 —

Terminal Type — Allen Allen —

Wire TorqueLb-in — 375 375 —

N•m — 42.2 42.4 —

Bulletin 140U



2.0050,8[ ]

3.2281,8[ ]

Ø.143,6[ ]

.8421,4[ ]

1.2230,9[ ]

2.4261,5[ ]1.00

25,4[ ]

3.2181,5[ ]

.4912,5[ ]

.4912,4[ ]

1.0025,4[ ]

1.2230,9[ ]

.164[ ]

.8421,4[ ]

.164,1[ ]

.9724,6[ ]

15-20 AMP, CLAMP ANDBINDING SCREW TERMINALS

25-100 AMP, PRESSURE COLLAR TERMINALS

Dimensions

G Frame

Bulletin 140U



1.0025,4[ ]

3.2281,7[ ]

3.0076,2[ ]

4.88123,8[ ]

3.2181,4[ ]

1.2231[ ]

2.4161,2[ ]

.8421,3[ ]

Ø.164,1[ ]

2.8371,8[ ]

.369,1[ ]

.4511,4[ ]

1.0025,4[ ]

1.0025,4[ ]

.369,1[ ]

.4511,4[ ]

140UG FRAME

140U G-FRAME

Bulletin 140U



Time-Current Curves

Bul.140U

Time-Current Curves for Bulletin 140U-G Thermal-Magnetic Molded Case Circuit Breakers

40752-600 (1)SC-6030-95Effective October 1997

Maximum

Interrupting Rating (See Tabulation Above)

Instantaneous Trip (See Tabulation Above)

Maximum Interrupting Time

Minimum

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

SDN O

CES

N I E

MIT

1,000

500

200

5,000

3,000

2,000

RUOH

1ET

UNI

M 1

SRUO

H 2

SDN OCES

NI EMIT

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RUO H 1E TU

NIM 1

SRU OH 2

001080 6 0 90705

0 001

008

0 06

009

007

005

004

003

002

0 00,01

0008

0 006

0 009

0007

000 5

0004

0 003

0002

000,001

00 0, 08

00 0, 06

000,09

000,07

000,0 5

00 0, 04

000,03

000,02

00 0, 01

0008

0006

0009

0007

00 05

0004

0003

00 02

0001

008

00 6

009

007

005

004

003

002

00 1

080 6 090705 000 ,0 01

000 ,0 8

000,0 6

000 ,0 9

0 00 ,07

0 00,05

000,04

000,03

0 00,02

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING

10,000

300

Circuit Breaker Time/Current Curves

For application and coordination purposes only. Based on 40 °Cambient, cold start. Connected with four (4) feet of rated wire(60/75°C) per terminal. Tested in open air with current in all polesexcept for instantaneous trip, see below.

Maximum VoltsBreakerType

140U-G

Breaker Rating

Continuous Amperes

15-6070-100

Interrupting Rating (UL Listed)BreakerType

140U-G

Ac Volts60 Hz

480

Instantaneous Trip, AmperesSingle Pole

500-13001300-1800

Symmetrical RMS Amperes240 Volts

65,000

2 Poles in Series

400-1100700-1300

480 Volts

22,000

Bulletin 140U



Bul.140U

Time-Current Curves for Bulletin 140U-K3/K6 Thermal-Magnetic Molded Case Circuit Breakers

40752-630 (1)SC-4118-87BEffective October 1997

Maximum

Maximum Single PoleTrip Times at 25°C ➀

Adjustable Magnetic Trip

X5

±20% ±10%X01

(250-400A)

(125-225A)

(100A)

Circuit Breaker Time/Current Curves

For application and coordination purposes only.Based on 40 °C ambient, cold start. Connected with four (4) feet ofrated wire (60°C up to 125 A. 75° C above 125 A) per terminal.Tested in open air with current in all poles. Instantaneous calibrationbased on single-pole tests.

Maximum Voltage600V., AC (60 Hz)250 V., DC

Breaker RatingRated Amperes (In)

Interrupting Rating (UL/CSA)

Single pole data at 25°C based on NEMA Procedures(AB 4-1991) for verifying performance of molded case circuitbreakers.

➀

RMS Sym AmperesBreakerType

Instantaneous Trip Amperes

65,000100,000

100, 125, 150,175, 200, 225,250, 300, 350,400

500 to 1000% of trip unit rating(See Figure Below)(Dc values are approximately 40% higher)

Amperes

TypicalTrip UnitNameplate

Individual PoleAdjustments

ThermalMagneticTrip Unit

C Push to Trip

MagneticMultiples Of In

10

7.5

10 5

7.5

10 5

Amps(In)

Cat.No.40°C

7.5

5

Minimum

@ 240 V., AC @ 480 V., AC @ 600 V., AC @ 250 V., DC

35,00065,000

25,00035,000

10,00022,000

140U-K3140U-K6

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

SDNO

CES

NI E

MIT

1,000

500

300

200

5,000

3,000

2,000

RUOH

1ET

UN I

M 1

SRU O

H 2

SDN OC ES

NI EM IT

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

R UOH 1ETU

NIM 1

SRUOH 2

0010806 090705

0001

00 8

00 6

009

0 07

005

0 04

00 3

00 2

0 00,01

000 8

0006

0 009

0007

00 05

000 4

00 03

0002

000 ,0 01

00 0,08

000,06

000 ,09

000,07

00 0,05

000,04

000 ,03

0 00,02

000 ,01

0 008

0 006

0009

0007

0 005

0004

0003

0002

000 1

00 8

006

009

007

0 05

00 4

0 03

00 2

001

0806 09070 5 000,0 01

000,08

000 ,06

000,09

000,07

000,05

000, 04

000 ,03

000, 02


CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)


10,000

Interrupting RatingDetermines Endof Curve

Time-Current Curves, Cont.

Bulletin 140U



Bul.140U

Time-Current Curves for Bulletin 140U-K0 Thermal-Magnetic Molded Case Circuit Breakers

40752-631 (1)SC-4119-87BEffective October 1997

Maximum

Maximum Single PoleTrip Times at 25°C ➀

Adjustable Magnetic Trip

±20% ±10%X01

(250-400A)

(125-225A)

(100A)

X5

Circuit Breaker Time/Current CurvesFor application and coordination purposes only.Based on 40 °C ambient, cold start. Connected with four (4) feet ofrated wire (60°C up to 125 A. 75° C above 125 amps) per terminal.Tested in open air with current in all poles. Instantaneous calibrationbased on single-pole tests.

Maximum Voltage600V., AC (60 Hz)250 V., DC

Breaker RatingRated Amperes (In)

Interrupting Rating (UL/CSA)

Single pole test data at 25°C based on NEMA Procedures(AB 4-1991) for verifying performance of molded case circuitbreakers.

➀

RMS Sym AmperesBreakerType

Instantaneous Trip Amperes

200,000

100, 125, 150,175, 200, 225,250, 300, 350,400

500 to 1000% of trip unit rating(See Figure Below)(DC values are approximately 40% higher)

Amperes

TypicalTrip UnitNameplate

Individual PoleAdjustments

ThermalMagneticTrip Unit

C Push to Trip

MagneticMultiples Of In

10

7.5

10 5

7.5

10 5

Amps(In)

Cat.No.40°C

7.5

5

Minimum

@ 240 V., AC @ 480 V., AC @ 600 V., AC @ 250 V., DC

100,000 50,000 22,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

SDN O

CES

NI E

MIT

1,000

500

300

200

5,000

3,000

2,000

RUO H

1ET

UNI

M 1

S RUO

H 2

SDN OC ES

N I EMIT

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RUO H 1ETU

NIM 1

SRUOH 2

0010806 090705

0001

008

006

009

007

005

00 4

003

002

000,01

0008

0006

0009

000 7

0 005

000 4

0003

0002

0 00,00 1

000,0 8

000,0 6

000,09

000,07

000,05

000,04

000,03

000,02

00 0,01

000 8

000 6

0009

0007

0005

0004

0003

0002

000 1

008

006

009

00 7

00 5

004

003

002

00 1

0806 0 9070 5 000 ,0 01

0 00,08

000,06

000,09

000, 07

00 0,05

000, 04

000,03

000,02




10,000

Interrupting RatingDetermines Endof Curve

600 V., Ac

480 V., Ac

240 V., Ac

140U-K0


Bulletin 140U



Bul.140U/UE

Time-Current Curves for Bulletin 140U-K Electronic LSI, LSIG Trip Units and Bulletin 140U-K3, -K6 Molded Case Circuit Breakers


X6

X8

X4

X 7

X3

X2

Standard FixedRating Plug

200 ms

100 ms

I

300 ms

X5

SDN OC ES

NI EMI T

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RUOH 1ETU

NIM 1

SRUOH 2

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.5

.5 201054321.8.6

1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.7 .9 6 7 8 9

20105432 6 7 8 9

Short DelayPick UpSettings(Tolerance±10%)

Long Delay➀Minimum TotalClearing Time

Long Delay➀Maximum TotalClearing Time

.7 .9

Fixed InstantaneousOverride ➁

InterruptingRatingDeterminesEnd ofCurve ➂

000,01

.1

.01

0001

0005

0 004

0003

0002

000,02

.001

S DN OC ES

CURRENT IN AMPS

000,03

000 ,04

000 ,05

0 00, 00 1

1

.02

.03

.04

.05

.2

.3

.4

.5

TEST

Short Delay

Engaged

Remove

Cat.

In

Rating Plug

Push to TripPickup • xIr Time • ms

Trip Unit40oC

5

73

2 8

4 6300

100

INST

200

Curve accuracy applies from –20°C to +55°C ambient. For possible continuous amperederating for ambient above 40°C, consult Rockwell Automation.

For high fault current levels a fixed instantaneous override is provided at 4000A.(Tolerance ±15%).

The end of the curve is determined by the interrupting rating of the circuit breaker.See above tabulation.

For ground fault time/current curve see 40752-636.

➀

➁

➂

➃

NotesElectronic trip units are suitable for functional field testing with test kit.For field testing using primary injection methods, follow NEMA publication AB-4-1991.

There is a memory effect that can act to shorten the long delay. The memory effectcomes into play if a current above the long delay pick up value exists for a time and thenis cleared by the tripping of a down stream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time delay reduction is inverse to the amount of time that has elapsedsince the previous overload. Approximately five minutes is required between overloadsto completely reset the memory.

Circuit Breaker Time/Current Curves (Phase Current) ➃

Technical Data Covers, Cat. Nos. 140U-KTL3, -KTI3 Electronic Trip Units for use withCircuit Breaker Types 140U-K3, -K6, 400A. max.

Available Rating Plugs

Interrupting Ratings – 50/60 HzRMS Sym. Amperes (kA)

BreakerType

UL/CSA

140U-K3140U-K6

65100

3565

2535

4065

65100

240V 480V 600V

240V 380V 415V

IEC 947-2

4065

400350300250225200

FixedFixedFixedFixedFixedFixed

140U-KRP3-D40140U-KRP3-D35140U-KRP3-D30140U-KRP3-D25140U-KRP3-D22140U-KRP3-D20

800-3200700-2800600-2400500-2000450-1800400-1600

BreakerType

Adjustable Short Delay Time Typical Trip Unit Nameplate

AmpereRating (In)

Type Short DelayPickup RangeAmperes

CatalogNumber

140U-K3140U-K6


Bulletin 140U



Bul.140U

Time-Current Curves for Bulletin 140U-K Electronic LSI, LSIG Trip Units and 140U-K0 Molded Case Circuit Breakers


X6

X8

X4

X 7

X3

X2


200 ms

100 ms

I

300 ms

X5

.02

.03

.04

.05Fixed InstantaneousOverride ➁


000,01

.1

.01

0005

0004

0003

000 2

0 00, 02

.001

S DNOC ES

CURRENT IN AMPS

0 00, 03

0 00, 04

00 0,0 5

00 0,0 01

1

000,002

600 VAC

480 VAC

240 VAC

MaximumInterruptingTime

TEST

Short Delay

Engaged

Remove

Cat.

In

Rating Plug

Push to TripPickup • xIr Time • ms

Trip Unit40oC

5

73

2 8

4 6300

100

INST

200

Curve accuracy applies from –20°C to +55°C ambient. For possible continuousampere derating for ambient above 40°C, consult Rockwell Automation.



For ground fault time/current curve see 40752-636.

➀

➁

➂

➃

Noteselectronic trip units are suitable for functional field testing with test kit.For field testing using primary injection methods, follow NEMA publication AB-4-1991.

There is a memory effect that can act to shorten the long delay. The memory effectcomes into play if a current above the long delay pick up value exists for a time and thenis cleared by the tripping of a down stream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time delay reduction is inverse to the amount of time that has elapsedsince the previous overload. Approximately five minutes is required between overloadsto completely reset the memory.

SDN OC ES

NI EMI T

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RUOH 1ETU

NIM 1

SRUOH 2


.5

.5 2010


.7 .9 6 7 8 9

20102 6 7 8 9

Short DelayPick UpSettings(Tolerance±10%)



.7 .9


Technical Data Covers, Cat. Nos. 140U-KTL3, -KTI3 Electronic Trip Units for use withCircuit Breaker Cat. No 140U-K0, 400A. max.


Interrupting Ratings – 50/60 HzRMS Sym. Amperes (kA)

BreakerType

UL/CSA

140U-K0

100 50

100

200

240V 480V 600V

240V 380V 415V

IEC 947-2

100

BreakerType


AmpereRating (In)


CatalogNumber

140U-K0

400350300250225200


140U-KRP3-D40140U-KRP3-D35140U-KRP3-D30140U-KRP3-D25140U-KRP3-D22140U-KRP3-D20

800-3200700-2800600-2400500-2000450-1800400-1600

200

1 5

5


Bulletin 140U



Bul.140U

Time-Current Curves for Bulletin 140U-M Electronic LS, LSG Trip Units and 140U-M5, -M6 Molded Case Circuit Breakers

40752-676 (1)SC-7204-99Effective February 1999

X6

X 8

X4

X7

X2




Short DelayPick UpSettings(Tolerance ±10%)

X5

X3


.5

.5

SDNOCES NI EMIT

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RU

OH 1

ET

UNI

M 1S

RU

OH 2

201054321.8.6


.7 .9 6 7 8 9

20105432 6 7 8 9.7 .9


000 ,01

.1

.01

0001

0005

0 004

0003

00 02

0 00 ,02

.001

SDNOC ES

CURRENT IN AMPS

000,0 3

000,0 4

000,0 5

0 00,001

.02

.03

.04

.05


Technical Data Covers, Cat. Nos. 140U-MTL3, -MTG3 Electronic Trip Unitfor use with Circuit Breaker Types 140U-M5, -M6, 800 A max.


Interrupting Rating

UL/CSA

RMS Sym. kA, 50/60 Hz

5065

2535

65100

240V 480V 600V

IEC 947-2


800700600500450400


140U-MRP3-D80140U-MRP3-D70140U-MRP3-D60140U-MRP3-D50140U-MRP3-D45140U-MRP3-D40

1600-64001400-56001200-48001000-4000900-3600800-3200

BreakerType

Fixed Short Delay Time Typical Trip Unit Nameplate

AmpereRating (I n)


Rating PlugCatalogNumber

240V (Ue) 380/415V (U e) 690V (U e)Icu Ics Icu Ics Icu Ics

Utilization Category AUimp = 8kV

65100

65100

5070

5050

2025

1013

Engaged

Remove

Cat.

In

Rating Plug

Push to Trip

Short DelayPickup x In

5

73

2 8

4 6Trip Unit40oC Ambient

Test

Curve accuracy applies from –20 °C to +55°C ambient. For possible continuous amperederating for ambient above 40 °C, consult Rockwell Automation.



For ground fault time/current curves see 40752-678.

➁

➂

➃

NotesElectronic trip units are suitable for functional field testing with test kit.For field testing using primary injection methods, follow NEMA AB4-1991 publications.

Calibration response in short delay pick-up range is same for 1, 2 or 3 poles in series.

There is a memory effect that can act to shorten the long delay. The memory effect comesinto play if a current above the long delay pick-up value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself. A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal. The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload.Approximately five minutes is required between overloads to completely reset the memory.

BreakerType


140U-M5140U-M6

140U-M5140U-M6

➀


Bulletin 140U



Bul.140U

Time-Current Curves for Bulletin 140U-M Electronic LSI, LSIG Trip Units and 140U-M5, -M6 Molded Case Circuit Breakers

40752-677 (1)SC-6913-98Effective February 1999

X6

X8

X4

X7

X3

X2


200 ms

100 ms

I

300 ms

X5

SD NOCES N I EM IT

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

RU

OH 1

ET

UNI

M 1S

RU

OH 2


.5

.5 201054321.8.6


.7 .9 6 7 8 9

20105432 6 7 8 9

Short DelayPickupSettings(Tolerance?10%)



.7 .9



000,01

.1

.01

0001

0005

00 04

00 03

000 2

000 ,0 2

.001

SDN OCES

CURRENT IN AMPS

000 ,0 3

0 00,04

0 00,05

000,0 0 1

.02

.03

.04

.05


Technical Data Covers, Cat. nos. 140U-MTH3, -MTI3 Electronic Trip Units for use withCircuit Breaker Types 140U-M5, -M6, 800 A max.


Interrupting Rating

800700600500450400


140U-MRP3-D80140U-MRP3-D70140U-MRP3-D60140U-MRP3-D50140U-MRP3-D45140U-MRP3-D40

1600-64001400-56001200-48001000-4000900-3600800-3200

BreakerType


AmpereRating (In)


Rating PlugCatalogNumber

140U-M5140U-M6

65100

Utilization Category AU imp = 8kV

140U-M5140U-M6

BreakerType

240V (Ue)

Icu Ics65

100

240V 480V 600V

5070

380/415V (U e )

Icu Ics5050

2025

690V (U e)

Icu Ics1013

65100

5065

2535

UL/CSA


IEC 947-2


Engaged

Remove

Cat.

In

Rating Plug

Push to Trip

Trip Unit40oC Ambient

Test

5

73

2 8

4 6

Short DelayPickup x In

300

100I

200

TimeMIsec

Curve accuracy applies from –20 °C to +55 °C ambient. For possible continuous amperederating for ambient above 40 °C, consult Rockwell Automation.



For ground fault time/current curves see 40752-678.

➀

➁

➂

➃

NotesElectronic trip units are suitable for functional field testing with test kit.For field testing using primary injection methods, follow NEMA AB4-1991 publications.

Calibration response in short delay pickup range is same for 1, 2 or 3 poles in series.

There is a memory effect that can act to shorten the long delay. The memory effect comesinto play if a current above the long delay pickup value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself. A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal. The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload.Approximately five minutes is required between overloads to completely reset the memory.


Bulletin 140U Molded Case Circuit Breakers...CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING 10,000...

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Transcript of Bulletin 140U Molded Case Circuit Breakers...CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING 10,000...