Bulletin 140U Molded Case Circuit Breakers

Transcription

1 Bulletin 40U Multitap End Cap Optional Optional Optional 40U-J-MTLA 40U-J-MTL6A 40U-J-ECM Aluminum Aluminum Molded Housing /4 screw /4 screw lb-in lb-in.6 N m.6 N m Cu/Al Cu/Al 60/7 C 60/7 C () (6) (A) /8 / in. (B) /4 7/8 in. (C) -/4 -/8 in. (A) /8 / in. (B) /4 7/8 in. (C) -/4 -/8 in. (A) 9 mm (B) 9 mm (C) mm (A) 9 mm (B) 9 mm (C) mm #4 # #4 #6.. 0 Allen - / in. (4 mm) Allen - / in. Allen - 4 mm 70 lb-in lb-in 7' Lb-in 7.9 N m.8 N m N m Optional Optional Optional 40U-K-MTLA 40U-K-MTL6A 40U-K-ECM Aluminum Aluminum Molded Housing.7 x screw.7 x screw 7-96 lb-in 7-96 lb-in N m N m Cu/Al Cu/Al 60/7 C 60/7 C () (6) (A) 9/6. /4 in. (B) -/6. -/ in. (C) -7/8 -/4 in. (A) 9/6. /4 in. (B) -/6. -/ in. (C) -7/8 -/4 in. (A) 4 9 mm (B) 0 8 mm (C) 48 7 mm (A) 4 9 mm (B) 0 8 mm (C) 48 7 mm # /0 #4 / Allen - /6 in. (X mm) Allen - /8 in. ( mm) Allen - 8 mm lb-in lb-in 7 Lb-in. N m.8 N m -m

2 Bulletin 40U Terminal and Lug Specifications Frame Size L Dim. Terminals Specification Specification Box Lugs Mechanical Lugs Material Std/Optional A (.4) Cat. No. B /6(.8) Material Terminal Fastener C /(.7) Hardware Fastener Slotted Terminal Lb-in Fastener Lb-in 4 Torque Torque N m N m Cable A Cable Temperature Cable Quantity Wire Strip Length Lugs in. mm C B AWG Wire Range mm Terminal Lb-in Wire Torque N m Material Std/Optional Optional Optional Optional A -/6(6.99) Cat. No. 40U-M- TLA 40U-M- TLC 40U-M- TLA4 Dim. B /6(.8) Material Aluminum Copper Aluminum M Terminal Fastener d /(.7) Hardware Fastener Socket Terminal Lb-in Fastener Lb-in 7/ Torque Torque N m... N m./4. Cable Cu/Al Cu only Cu/Al A Cable Temperature 60/7 C 60/7 C 60/7 C Cable Quantity () () (4) C B Wire Strip Length in. -/6 -/6 /6 mm AWG 0 0 Wire Range mm Terminal Socket Socket Socket Lb-in Wire Torque N m...

3 Bulletin 40U (A) 9/6. /4 in. (A) 4 9 mm Multitap End Cap Optional Optional Optional 40U-L-MTL 40U-L-MTL6 40U-L-ECM Aluminum Aluminum Molded Housing 0.7 x screw 0.7 x screw 7-96 lb-in 7-96 lb-in N m N m Cu/Al Cu/Al 60/7 C 60/7 C () (6) (B) -/6. - / in. (B) 0 8 mm (C) -7/8 - /4 in. (C) 48 7 mm (A) 9/6. /4 in. (A) 4 9 mm (B) -/6. - / in. (B) 0 8 mm (C) -7/8 - /4 in. (C) 48 7 mm # /0 #4 / Allen - /6 in. (X mm) Allen - /8 in. ( mm) Allen - 8 mm lb-in lb-in 7'Lb-in. N m.8 N m N m

4 Bulletin 40U Terminal and Lug Specifications Frame Size N Dim. Terminals Lugs Specification Specification Box Lugs Mechanical Lugs Material CU/Plate Std/Optional Optional Optional A / (.7) Cat. No. 40U-N-TLA4 40U-N-TLA B /8 (9.) Material Aluminum Copper C /8 (.7) Terminal Fastener Hardware Slip on box Fastener Terminal Lb-in 4 4 lug Fastener Lb-in Torque N m 4 4 Torque N m Cable CU/Al Cu/Al A Cable Temperature 60/7 C 60/7 C Cable Quantity (4) () C B Wire Strip Length in. 4-/8 4-/8 mm.. AWG 4/0 0MCM /0 MCM Wire Range mm Terminal Allen Allen Wire Torque Lb-in 7 7 N m

5 Bulletin 40U Dimensions, Cont. H Frame.47 [,9 ].88 [, ].4 [,6 ].00 [ 76, ].00 [,4 ].47 [ 6,7 ].97 [ 4,6 ]. [ 9,7 ].8 [ 96,9 ].44 [ 87,4 ].00 [,4 ].00 [,4 ].9 [ 74, ].88 [,4 ] BUL 40U E FRAME 8

6 Bulletin 40U BUL 40U H FRAME AND 4 POLE 9

7 Bulletin 40U Bul.40U/UE Time-Current Curves for Bulletin 40U-J Thermal-Magnetic Allen-Bradley 6 A () SC-XXX Effective March 4 8

8 TIME IN SECONDS IME IN SECONDS HOUR Bulletin 40U Bul.40U/UE Time-Current Curves for Bulletin 40U-J Electronic LS Current in Multiples of ( I r ) Long Delay Response & with IT Response Curve S MINUTE T R HOU Minimum Total Maximum Total Available Long Delay Time:,4,7,0,,,,4 sec. 6x I r,4,7,,4 seconds +0/-0% Available Sensors ( I n ): Circuit Breaker Time/Current Curve Long Delay (LD) & (SD) with I T Response (LS) A A 60A A Ir In A A 60 A A A 40A 6A A B A 4A 80A A C A A 90A A D 0A 6A A 60A E A 70A 0A 7A F 40A 80A A A G 4A 90A A A H A A 60A A Notes:. Curve accuracy applies from - C to + C ambient. Temperatures above +88 C cause an over temperature protection trip. For possible continuous ampere derating for ambient above 40 C, consult Rockwell Automation.. Application frequency is /60 Hertz.. There is a memory effect that can act to shorten the Long Delay. The memory effect comes into play if a current above the circuit breaker itself. A subsequent 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset memory. 4. The right portion of the curve is determined by the interrupting rating of the circuit breaker.. The left portion of the curve is shown as a multiple of the Long Delay Setting (Long Delay Pick Up = % of Ir). Range is 0% - %. 6. Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current. 7. The Pick Up has 9 settings/positions: - 8 & 0, I T band has a tolerance of ± %. 9. Breakpoint back to FLAT response 8x Ir for upper line of the I T curve. 0. For high fault current levels an additional fixed instantaneous hardware override is provided at 4x ( In).. For LD Response & SD with Flat Response curve, see: For LD Response & SD with I T Response (this curve): For Ground Fault Delay Response curve, see: I T (See Note 8) Available Pick Up Settings - 8,0, 4 x I r % (See Note 7) Instantaneous Override (See Note 0) ms. 0 Application Determines End of Curve See Note 9 4x Current in Multiples of ( I r ) Current in Multiples of ( I n ) () TC-0E Effective September I T Trip Style 9

9 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-K/K6 Thermal-Magnetic CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (I n ) 0, ,000,000 0,000,000 60,000 70,000 80,000 90,000,000 0,000 MINUTE HOUR HOUR S,000,000,000,000 0 Minimum (-A) (-A) (A) Maximum Maximum Single Pole Trip Times at C ➀ Circuit Breaker Time/Current Curves For application and coordination purposes only. Based on 40 C ambient, cold start. Connected with four (4) feet of rated wire (60 C up to A. 7 C above A) per terminal. Tested in open air with current in all poles. Instantaneous calibration based on single-pole tests. Maximum Voltage V., AC (60 Hz) V., DC Breaker Rated (I n) Instantaneous Trip,,, 7,,,,,, Interrupting (UL/CSA) Breaker RMS 40 V., 480 V., V., V., DC 40U-K 6,000,000,000 0,000 40U-K6,000 6,000,000,000 ➀ 0 to 0% of trip unit rating (See Figure Below) (Dc values are approximately 40% higher) Single pole data at C based on NEMA Procedures (AB 4-99) for verifying performance of molded case circuit breakers.,000,000,000,000 0 HOURS HOUR MINUT E Typical Nameplate 7. 0 Magnetic Multiples Of I n C Thermal Magnetic 7. 0 Amps (In) Push to Trip Cat. 40 C No Adjustable Magnetic Trip Individual Pole Adjustments TIME IN SECONDS TIME IN SECONDS. ±% ±0% X 0X Maximum Interrupting Time Interrupting Determines End of Curve ,000,000 0,000,000 CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (I n ) 60,000 70,000 80,000 90,000, () SC-48-87B Effective October 997

10 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-K0 Thermal-Magnetic CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In) 0, ,000,000 0,000,000 60,000 70,000 80,000 90,000,000 0,000 MINUTE HOUR HOUR S,000,000,000,000 0 Minimum (-A) (-A) (A) Maximum Maximum Single Pole Trip Times at C ➀ Circuit Breaker Time/Current Curves For application and coordination purposes only. Based on 40 C ambient, cold start. Connected with four (4) feet of rated wire (60 C up to A. 7 C above amps) per terminal. Tested in open air with current in all poles. Instantaneous calibration based on single-pole tests. Maximum Voltage V., AC (60 Hz) V., DC Breaker Rated (I n ) Instantaneous Trip,,, 0 to 0% of trip unit rating 7,,, (See Figure Below),,, (DC values are approximately 40% higher) Interrupting (UL/CSA) Breaker RMS 40 V., 480 V., V., V., DC 40U-K0,000,000,000,000 ➀ Single pole test data at C based on NEMA Procedures (AB 4-99) for verifying performance of molded case circuit breakers.,000,000,000,000 0 HOURS HOUR MINUT E Typical Nameplate 7. 0 Magnetic Multiples Of I n C Thermal Magnetic 7. 0 Amps (In) Push to Trip Cat. 40 C No Adjustable Magnetic Trip Individual Pole Adjustments TIME IN SECONDS TIME IN SECONDS. ±% ±0% X 0X Maximum Interrupting Time V., Ac 480 V., Ac V., Ac Interrupting Determines End of Curve ,000,000 0,000,000 CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In) 60,000 70,000 80,000 90,000, () SC-49-87B Effective October 997

11 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-K Electronic LSI, LSIG s and 40U-K0 CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) ,000 MINUTE HOUR HOUR S,000,000,000,000 0 Long Delay➀ Minimum Total Standard Long Delay➀ Maximum Total Circuit Breaker Time/Current Curves (Phase Current) Technical Data Covers, Cat. Nos. 40U-KTL, -KTI Electronic s for use with Circuit Breaker Cat. No 40U-K0, A. max. Adjustable Time Cat. In Push to Trip Engaged Remove Available s Ampere (In) Pickup xi r Time ms o C INST Interrupting s /60 Hz RMS Sym. (ka) UL/CSA Breaker 40V 480V V 40U-K0 Breaker IEC 947- Catalog Number ➃ Typical Nameplate 40U-KRP-D40 40U-KRP-D 40U-KRP-D0 40U-KRP-D 40U-KRP-D 40U-KRP-D TEST Pickup Range V 80V 4V 0 40U-K0 Notes electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA publication AB X 4X 6X Pick Up Settings (Tolerance ±0%) There is a memory effect that can act to shorten the long delay. The memory effect comes into play if a current above the long delay pick up value exists for a time and then is cleared by the tripping of a down stream device or the circuit breaker itself. A subsequent 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset the memory. ➀ ➁ Curve accuracy applies from C to + C ambient. For possible continuous ampere derating for ambient above 40 C, consult Rockwell Automation. For high fault current levels a fixed instantaneous override is provided at 0A. (Tolerance ±%). 8X ➂ The end of the curve is determined by the interrupting rating of the circuit breaker. See above tabulation. TIME IN SECONDS 7X ➃ For ground fault time/current curve see X X ms. ms ms.. I Instantaneous Override ➁ Maximum Interrupting Time Interrupting Determines End of Curve ➂ VAC.0 SECONDS VAC 40 VAC CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) ,000 CURRENT IN AMPS,000 0,000,000,000, () SC-64-9 Effective October 997 7

12 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-M Electronic LS, LSG s and 40U-M, -M6 MINUTE HOUR HOUR S. 0,000,000,000,000,000 0 CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) Long Delay➀ Minimum Total 0 Standard Long Delay➀ Maximum Total Circuit Breaker Time/Current Curves (Phase Current) ➃ Technical Data Covers, Cat. Nos. 40U-MTL, -MTG Electronic for use with Circuit Breaker s 40U-M, -M6, A max. Time Typical Nameplate Test Cat. Pickup x I n Push to Trip In o C Ambient Engaged 8 Remove Available s Ampere (I n) Catalog Pickup Range Number 40U-MRP-D U-MRP-D70-40U-MRP-D U-MRP-D U-MRP-D U-MRP-D40 - Interrupting Breaker UL/CSA RMS Sym. ka, /60 Hz 40V 480V V 40U-M 6 40U-M6 6 Breaker IEC 947- RMS Sym. ka, /60 Hz 40V (U e) 80/4V (U e) 690V (U e) I cu I cs I cu I cs I cu I cs 40U-M 40U-M X X Utilization Category A U imp = 8kV 0 Notes Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA AB4-99 publications. IN SECONDS TIME 4X X 6X 8X Pick Up Settings (Tolerance ±0%) Calibration response in short delay pick-up range is same for, or poles in series. There is a memory effect that can act to shorten the long delay. The memory effect comes into play if a current above the long delay pick-up value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself. A subsequent 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset the memory. ➀ Curve accuracy applies from C to + C ambient. For possible continuous ampere derating for ambient above 40 C, consult Rockwell Automation. ➁ For high fault current levels a fixed instantaneous override is provided at 0A. (Tolerance ±%). ➂ The end of the curve is determined by the interrupting rating of the circuit breaker. See above tabulation.. ➃ For ground fault time/current curves see X SECONDS Instantaneous Override ➁ Interrupting Determines End of Curve ➂ CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) CURRENT IN AMPS 0,000,000 0,000,000, () SC Effective February

13 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-M Electronic LSI, LSIG s and 40U-M, -M6 CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) ,000 MINUTE HOUR HOUR S,000,000,000,000 0 Long Delay➀ Minimum Total Standard Long Delay➀ Maximum Total Circuit Breaker Time/Current Curves (Phase Current) ➃ Technical Data Covers, Cat. nos. 40U-MTH, -MTI Electronic s for use with Circuit Breaker s 40U-M, -M6, A max. Adjustable Time Typical Nameplate Time Test Cat. Pickup x I n MIsec Push to Trip In o C Ambient Engaged 8 I Remove Available s Ampere (In) Catalog Pickup Range Number 40U-MRP-D U-MRP-D70-40U-MRP-D U-MRP-D U-MRP-D U-MRP-D40 - Interrupting Breaker UL/CSA RMS Sym. ka, /60 Hz 40V 480V V 40U-M 6 40U-M6 6 Breaker IEC 947- RMS Sym. ka, /60 Hz 40V (Ue) 80/4V (U e ) 690V (Ue) 0 40U-M 40U-M6 I cu 6 I cs 6 I cu 70 I cs I cu I cs 0 Utilization Category A U imp = 8kV 0 X Notes Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA AB4-99 publications. Calibration response in short delay pickup range is same for, or poles in series. 4X 6X Pickup Settings (Tolerance?0%) There is a memory effect that can act to shorten the long delay. The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself. A subsequent 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset the memory. ➀ Curve accuracy applies from C to + C ambient. For possible continuous ampere derating for ambient above 40 C, consult Rockwell Automation. IN SECONDS 7X 8X ➁ For high fault current levels a fixed instantaneous override is provided at 0A. (Tolerance ±%). ➂ The end of the curve is determined by the interrupting rating of the circuit breaker. See above tabulation. TIME ➃ For ground fault time/current curves see X X ms. ms ms.. I.04 Instantaneous Override ➁.0.0 SECONDS.0.0 Interrupting Determines End of Curve ➂ CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) ,000,000 0,000,000,000 CURRENT IN AMPS () SC Effective February 999 4

14 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-M Electronic s with Ground Fault Protection 0,000 GROUND CURRENT-AMPERES,000,000,000, xi G 4 xi G xi G Ground Fault Protection MINUTE HOUR HOUR S Circuit Breaker Time/Current Curves (Ground Current) ➀ Technical Data Covers, Electronic s for use with Circuit Breaker s 40U-M, -M6, A max. Time Typical Nameplate Ground Fault Time Test Cat. Pickup x I n Pickup x I g MIsec Push to Trip In o C Ambient Engaged I 8 I g = 60A Remove Adjustable Time Typical Nameplate Time Ground Fault Time Test Cat. Pickup x I n MIsec Pickup x I g MIsec Push to Trip 4 0 In o C Ambient Engaged I I 8 I g = 60A Remove Notes Curve accuracy applies from C to + C ambient. For possible continuous ampere derating for ambient above 40 C, consult Rockwell Automation. Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA publication (AB4-99). ➀ For phase time/current curves see: TIME IN SECONDS xi G xi G Ground Fault Pickup Settings (Tolerance ± 0% Except ± % on xig Setting) 0 ms. ms.. ms. I () SC Effective February GROUND CURRENT-IN MULTIPLES OF I g = 60A 46

15 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-N Electronic LS s MINUTE HOUR HOUR S. 0,000,000,000,000,000 0 CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) Long Delay➀ Minimum Total 0.6 Standard Long Delay➀ Maximum Total Circuit Breaker I t Ramp Short Time Delay Frame (Max.) Time/Current Curves (Phase Current) Electronic s are AC only devices that employ microprocessor based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment. They are used with Circuit Breaker s 40U-N, -N6, and -N0. Push Cat. to /n Trip Y Engaged Remov e Available s Ampere (I n) 0,, 0, Adj. Interrupting s /60 Hz RMS Sym. (ka) Breaker UL/CSA 40V 480V V ND, CND 6 HND, CHND 6 NDC, CNDC Typical Nameplate Pickup x In 4 6 TEST C Ambient Catalog Number 40U-NRP-E 40U-NRP-E0 40U-NRP-D80 40U-NRP-D70 40U-NRP-D60 40U-NRPA-E 6 Pickup Range IEC V 80-4V ICS =. ICU ICW = U imp = 8kV 6 X X Notes Curve accuracy applies from - C to + ambient above 40 C, consult Rockwell Automation 0 Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA publication AB For ground fault time-current curves see X Pick Up Settings (Tolerance ± 0%) ➀ There is a memory effect that can act to shorten the long delay. The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself. A subsequent overloads 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset the memory X ➁ For high fault current levels a fixed instantaneous override is provided at0a (Tolerance ±%). IN SECONDS TIME 6X 8X ➂ The end of the curve is determined by the interrupting rating of the circuit breaker. See above tabulation. ➃ Not UL/CSA Listed... 7X... Instantaneous Overide➁.0.0 SECONDS.0.0 Interrupting Determines End of Curve➂ CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ).00 0,000,000 0,000,000 CURRENT IN AMPS 60,000 70,000 80,000 90,000,000, () SC-7-9A Effective October

16 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-N LSI Electronic MINUTE HOUR HOUR S CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ) ,000,000,000,000,000 0 Long Delay➀ Minimum Total 0 Standard Long Delay➀ Maximum Total Circuit Breaker Adjustable Short Time Delay Frame (Max.) Push Cat. to /n Trip Y Engaged Time/Current Curves (Phase Current) Electronic s are AC only devices that employ microprocessor-based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment. For use with Circuit Breaker s 40U-N, -N6, and -N0. Remov e A vailable s Ampere (I n) 0,, 0, Adj. Interrupting s /60 Hz RMS Sym. (ka) Breaker UL/CSA 40V 480V V 40U-N 6 40U-N6 6 40U-N0 Typical Nameplate Pickup x I n 4 6 TEST C Ambient Catalog Number 40U-NRP-E 40U-NRP-E0 40U-NRP-D80 40U-NRP-D70 40U-NRP-D60 40U-NRPA-E Pickup Range IEC V 80-4V 6 ICS =. ICU ICW = U imp = 8kV Notes Curve accuracy applies from - C to + C ambient. For possible ampere derating for ambient above 40 C, consult Rockwell Automation Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA publication AB X For ground fault time-current curves see X 6X Pick Up Settings (Tolerance ±0%) ➀ There is a memory effect that can act to shorten the long delay. The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself. A subsequent overloads 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 elapsed since the previous overload. Approximately five minutes is required between overloads to completely reset the memory ➁ For high fault current levels a fixed instantaneous override is provided at0a (Tolerance ±%). ➂ The end of the curve is determined by the interrupting rating of the circuit breaker. See above tabulation. ➃ Not UL/CSA Listed. TIME IN SECONDS 7X 8X.. X X MS. MS MS.. I Instantaneous Overide➁.0.0 SECONDS.0.0 Interrupting Determines End of Curve➂ CURRENT IN MULTIPLES OF RATING PLUG AMPERES (I n ).00 0,000,000 0,000,000 CURRENT IN AMPS 60,000 70,000 80,000 90,000,000, () SC-76-9A Effective October

17 Bulletin 40U Bul.40U Time-Current Curves for Bulletin 40U-N Electronic LSG, LSIG s with Ground Fault Protection CURRENT IN AMPERES MINUTE HOUR HOUR S 0,000,000,000,000, Circuit Breaker Time/Current Curves (G round Current) Electronic s are AC only devices that employ microprocessor-based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment. They are used with Circuit Breaker s 40U-N, -N6, and N0. Notes Push to Trip Engaged Cat. /n Y Remov e Typical Nameplate Pickup x In Ground Fault Pickup x IG 4 6 IG=A Time 0 Millisec 40 C Ambient Curve accuracy applies from C to + C ambient. Electronic trip units are suitable for functional field testing with test kit. For field testing using primary injection methods, follow NEMA publication AB For phase time-current curves see , and -69. TEST 0 0 A. 0 A. A. Ground Fault Pick Up Settings (Tolerance±0% Except ±% on A. S etting) A. A. A. IN SECONDS TIME... SEC. SEC.. SEC. I CURRENT IN AMPERES () SC-77-9A Effective October