CONTROL PANELBUILDER'S

Transcription

1 MACHINERY OEM / CONTROL PANELBUILDER'S HANDBOOK MACHINERY OEM / CONTROL PANELBUILDER'S HANDBOOK

2 Machinery OEM Contro Panebuider's Handbook L 1 L 2 L 3 1 CONTROL PANEL MAIN BREAKER 2 MOTOR CIRCUIT PROTECTION CR PLC I/0 POWER SUPPLY CONTROL TRANSFORMER PROTECTION AND SELECTION MOTOR CONTROL CIRCUIT/APPARATUS PROTECTION GROUP MOTOR PROTECTION SHORT CIRCUIT CALCULATION APPENDIX Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA Copyright Cuter-Hammer Inc., A Rights Reserved

3 NEC MOTOR BRANCH CIRCUITS NEC Artices NFPA 79 Cause 7 - Line B Requires a disconnecting means for motors and controers from the circuit. NEC Artice NFPA Cause Line C Requires devices to protect motor branch circuit conductors, the motor contro apparatus and the motors against overcurrent due to short circuits or grounds. Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA

4 Pane Series C Vari-Depth FLA Part Hande Number Mechanism 15 GD3015 HRGCV14L 20 GD3020 HRGCV14L 25 GD3025 HRGCV14L 30 GD3030 HRGCV14L 35 GD3035 HRGCV14L 40 GD3040 HRGCV14L 45 GD3045 HRGCV14L 50 GD3050 HRGCV14L 60 GD3060 HRGCV14L 70 GD3070 HRGCV14L 80 GD3080 HRGCV14L 90 GD3090 HRGCV14L 100 GD3100 HRGCV14L Rated 480 VAC 3

5 Pane Series C Part Fex Shaft Series C Rotary FLA Number (1) Part Rotary Part Number(2) Number (3) &(4) 15 FD3015LM04 F1S03C HM1R06 20 FD3020LM04 F1S03C HM1R06 25 FD3025LM04 F1S03C HM1R06 30 FD3030LM04 F1S03C HM1R06 35 FD3035LM04 F1S03C HM1R06 40 FD3040LM04 F1S03C HM1R06 45 FD3045LM04 F1S03C HM1R06 50 FD3050LM04 F1S03C HM1R06 60 FD3060LM04 F1S03C HM1R06 70 FD3070LM04 F1S03C HM1R06 80 FD3080LM04 F1S03C HM1R06 90 FD3090LM04 F1S03C HM1R FD3100LM04 F1S03C HM1R FD3110LM04 F1S03C HM1R FD3125LM04 F1S03C HM1R FD3150LM04 F1S03C HM1R FD3175LM04 F1S03C HM1R FD3200LM04 F1S03C HM1R FD3225LM04 F1S03C HM1R JD3250LM04 F2S03C HM3R KD3300LM04* F3S03C HM3R KD3350LM04* F3S03C HM3R KD3400LM04* F3S03 HM3R06 Rated 25KAIC * 480VAC (1) MCCB Incudes: Line and Load ugs, Mounting hardware (2) Fex Shaft Operator incudes 3 cabe (4 to 10 avaiabe) (3) Rotary Shaft Operator fits panes up to 8 deep (12 avaiabe) (4) Add X to end of cataog number for NEMA 4X 4

6 Fex Shaft Rotary Door Quick Connect Hande Mounted Hande Muti-wire Mechanism Mechanism Lugs Quick Connect Muti-wire Lug Kits save vauabe pane space by eiminating ternmina bocks. They are avaiabe in 150 and 225 ampere ratings and provide for terminating either three (#14-#2) or six (#14-#6) wires per phase to the oad side of F- and J-Frame circuit breakers. Fex ShaftHande Mechanisms make instaing and operating encosure mounted F- through R- Frame breakers easier than ever. Instaation and adjustment of this fange mounted mechanism can be accompished in about 10 minutes or ess. Rotary hande mechanisms are avaiabe for F- through N-Frame breakers. This rugged through-thedoor rotary hande mechanism is designed to accommodate a goved hand. Contro Wire Termina Kit UL accepted method of connecting contro circuit wiring to the ine or oad side terminas of Series C F- through L-Frame circuit breakers. 5

7 MOTOR CIRCUIT PROTECTION NEC Artice 430, NFPA 79 Cause 7, 8.2 Requires that each motor branch circuit contain the foowing components or functions: 1. Disconnecting Means (MCCB, MCP, or Switch) Line B (NFPA-79) 2. Branch Short Circuit Protection (MCCB, MCP, or Fuse) Line C (NFPA-79) 3. Motor Controer (Contactor) Line F (NFPA-79) 4. Motor Overoad Protection (Overoad Reay) Line G (NFPA-79) M Wiring System Line H (NFPA-79) Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA

8 Motor Fu Load Current 460V NEMA HP Current Motor Circuit Starter Protector Size C-H Part Number 1/2 1.1 GMCP003A0C 00 AN16ANOAC 3/4 1.6 GMCP003A0C 00 AN16ANOAC GMCP003A0C 00 AN16ANOAC 1-1/2 3.0 GMCP007C0C 00 AN16ANOAC GMCP007C0C 00 AN16ANOAC GMCP007C0C 0 AN16BNOAC GMCP015E0C 0 AN16BNOAC 7-1/2 11 GMCP015E0C 1 AN16DNOAC GMCP030H1C 1 AN16DNOAC GMCP030H1C 2 AN16GNOAB GMCPS050K2C 2 AN16GNOAB GMCPS050K2C 2 AN16GNOAB GMCPS050K2C 3 AN16KNOA GMCP063M2C 3 AN16KNOA GMCP063M2C 3 AN16KNOA HMCP100R3 4 AN16NNOAB HMCP150T4 4 AN16NNOAB HMCP150T4 4 AN16NNOAB HMCP250L5 5 AN16SNOAB HMCP250L5 5 AN16SNOAB HMCP400R5 5 AN16SNOAB 7

9 Motor HP Fu Load 460V Series C IEC Current Motor Circuit Starter C-H 460V Protector Size Part Number 1/2 1.1 GMCP003A0C A AE16ANSOAC 3/4 1.6 GMCP003A0C A AE16ANSOAC GMCP003A0C A AE16ANSOAC 1-1/2 3.0 GMCP007C0C A AE16ANSOAC GMCP007C0C A AE16ANSOAC GMCP007C0C A AE16ANSOAC GMCP015E0C B AE16BNSOAC 7-1/2 11 GMCP015E0C C AE16CNSOAC GMCP030H1C D AE16DNSOAC GMCP030H1C E AE16ENSOAC GMCPS050K2C F AE16FNSOAC GMCPS050K2C G AE16GNSOAB GMCPS050K2C H AE16HNSOAB GMCP063M2C J AE16JNSOAB GMCP063M2C K AE16KNSOAB HMCP100R3 L AE16LNOA HMCP150T4 M AE16MNOA HMCP150T4 N AE16NNOA HMCP250L5 P AE16PNOA HMCP250L5 R AE16RNOA HMCP400R5 S AE16SNOA 8

10 Motor Fu Load 460V Series C NEMA C-H IEC C-H HP Current Earth Leakage Starter Number Starter Part Number 460 V Circuit Size Size Breaker 1/2 1.1 ELHFD3015L 00 AN16ANOAC A AE16ANSOAC 3/4 1.6 ELHFD3015L 00 AN16ANOAC A AE16ANSOAC ELHFD3015L 00 AN16ANOAC A AE16ANSOAC 1-1/2 3.0 ELHFD3015L 00 AN16ANOAC A AE16ANSOAC ELHFD3015L 00 AN16ANOAC A AE16ANSOAC ELHFD3015L 0 AN16BNOAC A AE16ANSOAC ELHFD3015L 0 AN16BNOAC B AE16BNSOAC 7-1/2 11 ELHFD3020L 1 AN16DNOAC C AE16CNSOAC ELHFD3035L 1 AN16DNOAC D AE16DNSOAC ELHFD3045L 2 AN16GNOAB E AE16ENSOAC ELHFD3060L 2 AN16GNOAB F AE16FNSOAC ELHFD3070L 2 AN16GNOAB G AE16GNSOAB ELHFD3080L 3 AN16KNOA H AE16HNSOAB ELHFD3100L 3 AN16KNOA J AE16JNSOAB ELHFD3125L 3 AN16KNOA K AE16KNSOAB ELHFD3125L 4 AN16NNOAB L AE16LNOA ELHFD3150L 4 AN16NNOAB M AE16MNOA ELHJD AN16NNOAB N AE16NNOA ELHJD AN16SNOAB P AE16PNOA ELHJD AN16SNOAB R AE16RNOA ELHKD AN16SNOAB S AE16SNOA 9

11 CONTROL TRANSFORMER PROTECTION AND SELECTION NEC 430 Part F, NFPA 79 Cause Line E Appies to the particuar conditions of motor contro circuits. Definition of Motor Contro Circuit The circuit of a contro apparatus or system that carries the eectric signas directing the performance of the controer, but does not carry the main power currrent. SP UL 1077 Contro Circuit Transformer SP UL 1077 Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA

12 CONTROL C-H PRIMARY SECONDARY TRANSFORMER MTE PART SUPPLEMENTARY SUPPLEMENTARY VA NUMBER PROTECTOR PROTECTOR 50 C0050E3D SPHM2HM00R5 SPCL1C00 75 C0075E3D SPHM2HM0R75 SPCL1C C0100E3D SPHM2HM0001 SPCL1C C0150E3D SPHM2HM0001 SPCL1C C0200E3D SPHM2HM0002 SPCL1C C0250E3D SPHM2HM02R5 SPCL1C C0300E3D SPHM2HM0003 SPCL1C C0350E3D SPHM2HM0003 SPCL1C C0500E3D SPHM2HM0005 SPCL1C C0750E3D SPHM2HM07R5 SPCL1C010 11

13 SELECTING AND SIZING YOUR INDUSTRIAL CONTROL TRANSFORMER For proper seection of the transformer, the foowing three characteristics must be identified: Seaed VA (Steady State VA) Tota inrush VA Power factor NEMA standards require eectromagnetic components to operate successfuy at 85% of rated votage (refer to NEMA ICS2-110). Whie contactors and reays may indicate that many contro devices wi cose reiaby at 60% of their coi ratings, cosing at ess than 85% votage wi shorten contact ife. Foow these steps to propery seect your transformer: Identify the Suppy Votage. Attached is the chart for V, at 60 or Hz, at 25 degree C ambient temperature and 20% power factor. Other suppy votage information is avaiabe upon request. Determine the Seaed VA of the contro circuit. Add the VA requirements of a components that wi be energized together (as suppied by the contro device manufacturer). Determined the Inrush VA of a components to be energized together, incuding the components that do not have an eevated inrush VA (ike amps). Exampe: Qty Description Seaed VA Inrush VA 1 Size 1 Contactor Size 3 Contactors Reays Timers Indicating Lights Tota The Transformer Seection VA is cacuated as foows: Seection VA = (Seaed VA) 2 + (Inrush) 2 = (243) 2 + (1476) 2 = 2,237,625 = 1496 Refer to the Industria Contro Transformer Seection Chart. Based upon your maximum aowabe oad votage drop, refer to the 95, 90 or 85% secondary required votage coumn. Go down the coumn unti you reach your determined Seection VA. Refer to the far eft coumn and you have your Transformer VA. 12

14 Tabe 1 Motor Contro Circuit Transformer Overcurrent Protection Seection Guide (Transformers 600 Vots Nomina or Less) Transformer Primary Current Primary Overcurrent Device Ampacity must not Exceed Secondary Overcurrent Device Ampacity must not Exceed Transformer Secondary Current Primary Overcurrent Protection Ony Less Than 2 Amperes 2 Amperes to Less Than 9 Amperes 500% (Note 1) See Tabe 2 167% See Tabe 3 Optiona (Note 2) No Quaifications 9 Amperes or More 125% Or next higher rating (Note 3) See Tabe 3 Primary and Secondary Overcurrent Protection Less Than 2 Amperes No Quaifications 500% (Note 1) See Tabe 2 250% See Tabe 4 167% See Tabe 5 125% Or next higher rating (Note 3) See Tabe 5 Less Than 9 Amperes 9 Amperes or More Note 1 NEC (c) exception 2 permits a 500% primary overcurrent device when contro circuit transformer primary current ess than 2 amps. Note 2 Athough protection of the transformer secondary is optiona, overcurrent protection of the secondary conductors may be required. Secondary overcurrent protection no more than 100% of the secondary conductor shoud be considered. Note 3 Where 125% does not correspond to a standard current rating, the next standard rating is permitted per NEC

15 MOTOR CONTROL CIRCUIT AND APPARATUS PROTECTION NEC 430 Part F, NFPA 79 Cause Line D Appies to the particuar conditions of motor contro circuits. Definition of Motor Contro Circuit The circuit of a contro apparatus or system that carries the eectric signas directing the performance of the controer, but does not carry the main power current. SP UL 1077 Contro Circuit Transformer SP UL 1077 SP UL 1077 SP UL 1077 SP UL 1077 PLC I/O Points Controer Cois Reays Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA

16 Suppementary Protector CATALOG NUMBERING SYSTEM Type SPCL Current Limiting SPCL 1 C 20 Appications Equipment Protection Contro Circuits SPCL suppementary protectors The SPCL can provide therma SPCL current imiting performare IEC current imiting type overoad protection unique ance current ratings beow breakers that provide therma to the equipment that the 10 amperes are an attractive, magnetic protection in appic- backup branch circuit pro- resettabe aternative in ations from 0.5 to 63 amperes tective device cannot. Its protecting contro circuits. at 120 to 480 vots AC. current imiting performance o Motor Contro Circuits provides for quick interrup- (per NEC , Part F) tion of short circuits, re- o Contro Circuit Transformers ducing the et-through energy, stress, and damage. Type Suppementary Protector Current Limiting Poes 1= 1 poe 2= 2 poe 3= 3 poe 4= 4 poe Curve Type (Appications) B = B Curve (Low Inrush) C = C Curve (Genera/Industria) Current Rating 00 = 0.5 Amp* 06 = 6 Amp 20 = 20 Amp 01 = 1 Amp* 07 = 7 Amp* 25 = 25 Amp 02 = 2 Amp* 08 = 8 Amp* 32 = 32 Amp 03 = 3 Amp* 10 = 10 Amp 40 = 40 Amp 04 = 4 Amp* 13 = 13 Amp 50 = 50 Amp 05 = 5 Amp* 16 = 16 Amp 63 = 63 Amp * Avaiabe curve type C ony. o PLC I/O Points o Contactor Cois o Reays 15

17 ACCESSORIES Lock-off Devices Bus Bar Systems Auxiiary/Signa Switch Kit To ock-off any SPCL Sige-phase bus bars for Auxiiary/signa switch kit protector, use padockabe contro circuit appications is fied instaabe to the eft device Cataog Number are avaiabe in engths of one side of an SPCL protector SPCLPLDEV and padock meter. Use Cataog Number and is seectabe between with key Cataog Number SPCL1PB10MM (10mm2 auxiiary and signa switch SPCLOCKEY. density) or SPCL1PB16MM modes. Use Cataog Number (16mm2 density) SPCLUAUX. 16

18 CATALOG NUMBERING SYSTEM SPHM 3 H M 0030 Suppementary Protector Type SPHM Hydraic Magnetic Type Auxiiary Switch (Optiona) Suppementary Protector Hydrauic Magnetic A (1) = Current Normay Open (2) B (1) = Current Normay Cosed (2) Poes Continuous Current Reading (5) 1 = 1 poe 00R1 = 0.10 Amp 2 = 2 poe 0R25 = 0.25 Amp 3 = 3 poe 0R50 = 0.50 Amp 4 = 4 poe 0R75 = 0.75 Amp 0001 = 1 Amp 1/2 Cyce Inrush Toerence Overcurrent Curve 0002 = 2 Amp Code Deay Votage Code Deay Curve (3) 02R5 = 2.5 Amp 1. One A or B contact maximum H 8X 50/60 Hz M Medium = 3 Amp per poe. Contacts wi be arranged S Short = 4 Amp eft to right, e.g. BAB suffix on R 18X 50/60 Hz L Long = 5 Amp 3 poe breaker. M Medium = 6 Amp S Short = 7 Amp 2. Contact position when breaker is Y(4) 25X 50/60 Hz L Long R5 = 7.5 Amp in open condition. Contacts rated M Medium = 8 Amp 10 amperes at 250 vots AC. S Short = 10 Amp J 8X DC M Medium = 15 Amp 3. UL recognized to 250 vots AC, 5kA. S Short = 20 Amp S 18X DC L Long = 25 Amp 4. Maximum of 40 amperes avaiabe M Medium = 30 Amp at 25 times inrush. S Short = 35 Amp(3) Z(4) 25X DC L Long = 40 Amp(3) 5. Contact Cuter-Hammer for copies M Medium = 45 Amp(3)(4) of time-current curves S Short = 50 Amp(3)(4) Long Deay Extended Inrush S Switch DC 50/60 Hz W Switch Medium Deay Genera/Industria Short Deay Eectronics 6. For specia current ratings not shown, contact Cuter-Hammer Appications Precise Overoad Protection Equipment and Contro Circuit Protection SPHM suppementary protectors provide Protection is not affected by ambient temp- Long, medium, and short deay overcurmagnetic ony overcurrent protection for eratures (-40 to 85 C). The protector wi rent curves provide for cose overcurrent appications from 0.1 to 30 amperes at hod in at 100% rated current, eiminating protection in appications ike: 277/480 vots and 35 to 50 amperes at nuisance tripping at higher ambients and 250 vots AC. wi not aow higher than rated current at Eectronics ower ambients. Motor Contro Circuits (per NEC , Part F) Immediate Reset Contro Circuit Transformers The protector can be reset (cosed) imme- PLC I/O Points diatey after an overcurrent trip, maximiz- Contactor Cois ing continuity to the affected circuit. Reays 17

19 GROUP MOTOR PROTECTION NEC 430, NFPA 79 Cause 8.5 A singe disconnecting means may be permitted to serve a group of motors where: - The group of motors drive severa parts of a singe machine or piece of apparatus. - A group of motors is in a singe room within sight of the disconnecting means. - Severa motors, each not exceeding a one horsepower rating, are used on a singe branch circuit protected at 20 amperes maximum for 120 vots branch circuit or 15 amperes maximum up to 600 vots per NEC (a). MCCB UL 489 Manua Motor Controer UL 508 Manua Motor Controer UL 508 M Optiona Contactor M NEC (c) A singe short circuit and ground faut protective device is permitted for a group of motors if each motor controer and each motor overaod device is isted for group instaations with a specified rating of fuse or inverse time circuit breaker, or both. Reprinted with permission from NFPA , the Nationa Eectrica Code R, Copright C 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the reference subject which is represented ony by the standard in its entirety. Nationa Eectrica Code R and NEC R are registered trademarks of the Nationa Fire Protection Association, Inc., Quincy, MA

20 A302 Manua Starters/Protectors The A302 is a UL 508 isted maua motor starter idea for singe or group motor appications from 0.1 to 25 amperes, 600 vots AC. The A302 provides motor stop/ start, adjustabe Cass 10 therma overoad protection, and can be Din Rai or pane mounted. Accessories incude aarm and auxiiary contacts, undervotage reaease, shunt trip, bus bars, etc. 19

21 Short Circuit Cacuations Unimited Faut Current 12,470VD 2,500 KVA, Z=5.75% Cacuated Faut, 52,296A 480Y/277V kva 2,500 x 1,000 x 100 Isc = = = 52,296 A VxZ 480 x 3 x 5.75 Chart kva Transformer / 5.5% Impedance/480 Vots Faut Current in Thousands of Amperes (Sym.) B F MCM MCM 250 MCM # 1/0 AWG #4 AWG MCM MCM 250 MCM # 1/0 AWG #4 AWG UTILITY kva A INFINITE B 500,000 C 250,000 D 150,000 E 100,000 F 50, Distance in Feet from Transformer to Breaker Location 20

22 APPENDIX NEC ARTICLE 430 Tabe Motor Locked-Rotor Current Amperes* NEC ARTICLE 430 Tabe Maximum Rating or Setting of Motor Branch-Circuit Short-Circuit and Ground-Faut Protective Devices NEC Tabe 8 Conductor Properties NEC Tabe 9 AC Resistance and Reactance for 600V Cabes, 3 phase 60, Hz, 75 C (167 F) - Three Singe Conductors in Conduit NEC ARTICLE 310 Tabe Conductor Appication and Insuations NEC ARTICLE 310 Tabe Ampacities of Insuated Conductors Rated Vots, 60 to 90 C (140 to 194 F) Not More Than Three Conductors in Raceway or Cabe or Earth (Directy Buried), Based on Ambient Temperature of 30 C (86 F) NEC ARTICLE 310 Tabe Ampacities of Singe Insuated Conductors, Rated 0 through 2000 Vots, In Free Air Based on Ambient Air Temperature of 30C (86 F) NEC ARTICLE Ampacities of Three Singe Insuated Conductors Rated 0 through 2000 Vots, 150 to 250 C (302 to 482 F), in Raceway or Cabe Based on Ambient Air Temperature of 40 C (104 F) NEC ARTICLE 310 Tabe Ampacities for Singe Insuated Conductors Rated 0 through 2000 Vots, 150 to 250 C (302 to 482 F) in Free Air Based on Ambient Air Temperature of 40 C (104 F) A B C D E F G H I CUTLER-HAMMER E22 & 10250T SELECTION GUIDES J

23 A Motor Locked-Rotor Current Amperes* Singe Phase Two or Three Phase Max. HP Rating 115V 230V 115V 200V 230V 460V 575V / / / / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

24 Deay) B MOTORS, MOTOR CIRCUITS, CONTROLLERS - ARTICLE 430 Tabe Maximum Rating or Setting of Motor Branch-Ci rcuit Short-Circuit and Ground-Faut Protective Devices Type of Motor Nontime Deay Fuse Percent of Fu-Load Current Dua Eement (Time- Fuse Instantane ous Trip Breaker Inverse Time Breaker Singe-phase, a types A ac singe-phase and poyphase squirrecage and synchronous motors with fuvotage, resistor or reactor starting: A ac squirre-cage and synchronous motors with autotransformer starting: Not more than 30 amps More than 30 amps High-reactance squirre-cage Not more than 30 amps No code etter No code etter Code etter F to V Code etter b to E Code etter A No code etter No code etter Code etter f to V Code etter b to E Code etter A No code etter More than 30 amps No code etter Wound-rotor- No code etter Direct-current (constant votage) No more than 50 hp No code etter More than 50 hp No code etter Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

25 C TABLES AND EXAMPLES Tabe 8 Conductor Properties Conductors DC Resistance at 75 C (167 F) Size AWG/ Area Cir. Stranding Overa Copper Auminum kcmi Mis Quantity Diam In. Diam In. Area In. Uncoated ohm/mft Coated ohm/mft ohm/mft / / / / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

26 D Tabe 9 AC Resistance and Reactance for 600V Cabes, 3 phas e 60, Hz, 75 C (167 F) - Three Singe Conductors in Conduit Ohms to neutra per 1000 feet X (Reactance) AC Resistance for AC Resistance for Effective Z at.85 PF for Effective Z at.85 PF for Size for A Wires Uncoated Copper Wires Auminum Wires Uncoated Copper Wires Auminum Wires Size AWG/ PVC, A. Stee PVC A. Stee PVC A. Stee PVC A. Stee PVC A. Stee AWG/ kcmi Conduits Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit Conduit kcmi / /0 2/ /0 3/ /0 4/ / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

27 E CONDUCTORS FOR GENERAL WIRING - ARTICLE 310 Tabe Conductor Appication and Insuations Trade Name Type Letter Max. Operating Temp. Appications Provisions Insuation AWG or kcmi Thickness of Insuation Mis Fuorinated FEP 90 C Dry and damp ocations Fuorinated Ethyene or 194 F Ethyene Propyene FEPB 200 C Dry ocations - specia appications Propyene F Fuorinated Ethyene Propyene Minera Insuation MI 90 C Dry and wet ocations Magnesium M(Meta Sheathed) 194 F Oxide C For specia appication F Moisture, Heat and Machine too wiring in wet ocations Oi-Resistant as permitted in NFPA Standard No. Thermopastic 60 C 79 (See Artice 670) Fame (A) (B) Retardant, Moisture, Heat and Oi- Resistant 140 F Thermopastic MTW Machine too wiring in wet ocations as permitted in NFPA Standard No. 90 C 79 (See Artice 670) F / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety. Outer Covering None Gass Braid Asbestos or other suitabe braid materia Copper or Aoy Stee (A) None (B) Nyon jacket or equivaent

28 Trade Name Type Letter Max. Operating Temp. Appications Provisions Insuation AWG or kcmi Thickness of Insuation Mis Outer Covering Paper 85 C For underground service conductors, or by specia permission Paper Lead sheath 185 F Perfuoroakoxy PFA 90 C Dry and damp ocations Perfuoroakoxy F None 200 C Dry ocations - specia appications 1-4/ F Perfuoroakoxy PFAH 250 C Dry ocations ony. Ony for eads Perfuoroakoxy F within apparatus or within raceways None connected to apparatus. (Nicke or 1-4/0 45 nicke-coated copper ony) Heat-Resistant RH 75 C Dry and damp ocations Heat ** *Moisture-resistant, Rubber 167 F Resistant fame-retardant, Rubber non-metaic Heat-Resistant RHH 90 C Dry and damp ocations 1-4/0 80 covering Rubber 194 F For vots, see Tabe Moisture-and RHW 75 C Dry and wet ocations Moisture Moisture-resistant, Heat-Resistant 167 F For over 2000 vots insuation sha and Heat fame-retardant, Rubber be ozone-resistant Resistant 1-4/0 80 non-metaic Rubber covering For vots, see Tabe Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

29 F ARTICLE CONDUCTORS FOR GENERAL WIRING Tabe Ampacities of Insuated Conductors Rated Vots, 60 to 90 C (140 to 194 F) Not More Than Three Conductors in Raceway or Cabe or Earth (Directy Buried), Based on Ambient Temperature of 30 C (86 F) Size Temperature Rating of Conductor, See Tabe Size 60C 75C 85C 90C 60C 75C 85C 90C (140 F) (167 F) (185 F) (194 F) (140 F) (167 F) (185 F) (194 F) TYPES TYPES TYPES TYPES TYPES TYPES TYPE TYPES AWG TW FEPW V TA, TBS, SA TW RH, RHW, V TA, TBS, AWG UF RH, RHW SIS, FEP, UF THHW, SA, SIS, kcmi THHW FEPB, RHH, WHE, RHH, kcmi THW THHN, WHEN, THHW, THWN THHW, XHHW, THHN, XHHW XHHW USE XHHW USE, ZW COPPER ALUMINUM OR COPPER-CLAD ALUMINUM / /0 2/ /0 3/ /0 4/ /0 Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

30 Ambient AMPACITY CORRECTION FACTORS For ambient temperatures othe than 30 C (86 F), mutipy the ampacities Ambient Temp. C shown above by the appropriate factor shown beow. Temp. F Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

31 G CONDUCTORS FOR GENERAL WIRING - ARTICLE 310 Tabe Ampacities of Singe Insuated Conductors, ed Rat0 through 2000 Vots, In Free Air Based on Ambient Air Temperature 30C of (86 F) Size Temperature Rating of Conductor, See Tabe Size 60 C 75 C 85 C 90 C 60 C 75 C 85 C 90 C (140 F) (167 F) (185 F) (194 F) (140 F) (167 F) (185 F) (194 F) TYPE TYPES TYPE TYPES TYPE TYPES TYPE TYPES TW, FEPW, V TA, TBS, TW, RH, THW, V TA, TBS, AWG UF RH, RHW, SA, SIS, UF THHW, SA, SIS, AWG THHW, FEP, THW, RHH, kcmi THW, FEPB, THWN, THHN, kcmi THWN RHH, XHHW THHW, XHHW, ZW THHN, XHHW, THHW, MI XHHW, MI COPPER ALUMINUM OR COPPER-CLAD ALUMINUM / /0 2/ /0 3/ /0 4/ / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

32 / Ambient AMPACITY CORRECTION FACTORS For ambient temperatures other than 30 C (86 F), mutipy e th ampacities Ambient Temp. C shown above by the appropriate factor shown beow Temp F Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

33 H ARTICLE CONDUCTORS FOR GENERAL WIRING Tabe Ampacities of Three Singe Insuated Conductor s Rated 0 through 2000 Vots, 150 to 250 C (302 to 482 F), in Raceway or Cabe Based on Ambient Air Temperature of 40 C (104 F) Size Temperature Rating of Conductor, See Tabe Size 150 C 200 C 250 C 150 C 302 F 392 F 482 F 302 F AWG TYPE TYPES TYPES TYPE AGW Z FEP, PFAH, Z kcmi FEPB, TFE kcmi PFA NICKEL OR NICKEL- COATED ALUMINUM OR COPPER- CLAD COPPER COPPER ALUMINUM / /0 2/ /0 3/ /0 4/ / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

34 Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

35 CONDUCTORS FOR GENERAL WIRING - ARTICLE 310 Tabe Ampacities for Singe Insuated Conductors Rated 0 through 2000 Vots, 150 to 250 C (302 to 482 F) in Free Air Based on Ambient Air Temperature of 40 C (104 F) I Size Temperature Rating of Conductor. See Tabe Size 150 C 200 C 250 C 150 C AWG 302 F 392 F 482 F 302 F Bare AWG Bare or TYPE TYPES TYPES TYPE or covered kcmi Z FEP, PFAH, Z covered kcmi conductors FEPB, TFE conductors PFA NICKEL OR NICKEL- COPPER COATED COPPER ALUMINUM OR COPPER- CLAD ALUMINUM / /0 2/ /0 3/ /0 4/ / Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

36 Size Temperature Rating of Conductor. See Tabe Size 150 C 200 C 250 C 150 C AWG 302 F 392 F 482 F 302 F Bare AWG Bare or TYPE TYPES TYPES TYPE or covered kcmi Z FEP, PFAH, Z covered kcmi conductors FEPB, TFE conductors PFA NICKEL OR NICKEL- COPPER COATED COPPER ALUMINUM OR COPPER- CLAD ALUMINUM AMPACITY CORRECTION FACTORS Ambient For ambient temperatures other than 40 C (104 F), mutipy he t Ambient Temp C ampacities shown above by the appropriate factor shown beow Temp F Reprinted with permission from NFPA , the Nationa Eectrica Code-, Copyright- 1998, Nationa Fire Protection Association, Quincy, MA This reprinted materia is not the compete and officia position of the Nationa Fire Protection Association, on the referenced subject which is represented ony by the standard in its entirety.

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