AIR CIRCUIT BREAKERS - Electrical and Electronics Division

More documents

Recommendations

Info

DX..S Page Adjustable Overload & adjustable Shortcircuit with standard Breaking Capacity 3 & 4 Pole Technical Data 2/18,2/19 I-t Characteristic Curves 2/32-2/34 MCCB Ordering Data 2/41 Accessories Ordering Data 2/51,2/52 Overall Dimensions 2/67-2/71 DTH Instantaneous Page Instantaneous MCCBs Technical Data 2/24 MCCB Ordering Data 2/44 Accessories Ordering Data 2/55 Overall Dimensions 2/78 MOULDED CASE CIRCUIT BREAKERS DX..H Page Adjustable Overload & adjustable Shortcircuit with high Breaking Capacity 3 & 4 Pole Technical Data 2/20-2/22 I-t Characteristic Curves 2/32-2/35 MCCB Ordering Data 2/42 Accessories Ordering Data 2/51-2/53 Overall Dimensions 2/67-2/75 D� Page �use Monitoring device Technical Data 2/25 Ordering Data 2/44 Accessories Ordering Data 2/55 Overall Dimensions 2/79 Wiring Diagram 2/79 DM Page Motor protection MCCBs Technical Data 2/23 MCCB Ordering Data 2/43 Accessories Ordering Data 2/54 Overall Dimensions 2/76,2/77 Type 2 Co-ordination Chart 2/83 2
2 2/1 MOULDED CASE CIRCUIT BREAKERS L&T was the first company to introduce “Moulded case circuit Breakers (MCCBs)” in India. Over the years, it has developed & enhanced the products to growing requirements of market conditions. L&T MCCBs use latest technologies for circuit interruption under faults. These MCCBs comply with standards IS 13947, IEC 60947 and EN 60947-2 and are certified at independent and approved test authorities. L&T offers a wide range of MCCBs with current ratings from 0.63A to 1600A in 3-Pole & 4-Pole versions & breaking capacity from 6kA to 100kA. These MCCBs are available with Thermal-Magnetic as well as with Electronic release (above 125A in DX range). These MCCBs are available in �ixed or Drawout versions. They are also available in utilisation category ‘A’ or ‘B’. L&T MCCBs are complemented with a wide variety of internal and external accessories. APPLICATIONS Distribution �eeders Ideally suited for incoming and outgoing feeder circuits on distribution boards. Transformers Provide effective protection to distribution transformers as outgoing breakers on the LT side. DG Sets Used for protection and control of diesel generating sets against overloads and short circuits. AP�C Systems Suitable for controlling LT capacitors for power factor corrections. DC Loads Suitable for both AC as well as DC applications. Hence find application in protecting rectifier panels. UPS Used for UPS & Electronic equipment protection. Motors Specially designed MCCBs for Motor back-up protection provide Type-2 co-ordination (as per IEC 60947) in conjunction with suitably rated contactors and relays. �urnaces Suitable for high frequency systems upto 400Hz and can be used for control of high frequency furnaces. Also used in induction furnaces along with semiconductor fuses. WORKING PRINCIPLE L&T’s new range of MCCBs operate on “Current limiting” principle. This helps in very fast clearance (less than 10 mS) of short-circuit faults. This is achieved by – 1. Quick opening of main contacts. 2. Guiding the arc rapidly away from the contacts into the arcing chamber. 3. Quick quenching of arc by using effective arc quenching devices. As a result peak short circuit current (I p ) is limited to cut-off current (I c ). Thus, I2t let through (proportional to the shaded area) is considerably reduced, resulting in lower thermal stresses in downstream equipments and connecting cables.
Page 1 and 2: 1 C-POWER : C Range Page CE marked
Page 3 and 4: 1 Rating (A) 400 630 800 Type Desig
Page 5 and 6: 1 Rating (A) 1600 2000 2500 Type De
Page 7 and 8: 1 1/6 SR21 SR21E Note : 3 phase, 4
Page 9 and 10: 1 1/8 Type of Protection PROTECTION
Page 11 and 12: 1 1/10 ZONE SELECTIVE INTERLOCKING
Page 13 and 14: 1 1/12 PROTECTION SOLID STATE CHARA
Page 15 and 16: 1 * Not recommended 1/14 PROTECTION
Page 17 and 18: 1 1/16 ACCESSORIES ACB tripping ind
Page 19 and 20: 1 OPERATION COUNTER SRT - 2 for SR2
Page 21 and 22: 1 All Air Circuit Breakers conform
Page 23 and 24: 1 Terminal Orientation* Straight Ho
Page 25 and 26: 1 �or 800 A to 2500 A 3P/4P 1/24
Page 27 and 28: 1 �or 630A - 2000A 3P Note : All
Page 29 and 30: 1 �LAT TERMINAL CONNECTIONS 1/28
Page 31 and 32: 1 1/30 OVERALL DIMENSIONS - TYPE H
Page 33 and 34: 1 �OR �IXED ACBs - 800A to 4000
Page 35 and 36: 1 �OR DRAWOUT ACBs - 3200 D, 4000
Page 37 and 38: 1 1/36 SPRING CHARGE INDICATION (
Page 39: 2 DS Page �ixed Overload & �ixe
Page 43 and 44: 2 Note : �or ordering information
Page 45 and 46: 2 Note : �or ordering information
Page 47 and 48: 2 Auxiliary Contacts 2/7 ACCESSORIE
Page 49 and 50: 2 2/9 TECHNICAL DATA - DS Type Desi
Page 51 and 52: 2 2/11 TECHNICAL DATA - DTH...E Typ
Page 53 and 54: 2 2/13 TECHNICAL DATA - DH Type Des
Page 55 and 56: 2 2/15 TECHNICAL DATA - DL Type Des
Page 57 and 58: 2 2/17 TECHNICAL DATA - DTH Type De
Page 59 and 60: 2 2/19 TECHNICAL DATA - DX..S (3/4
Page 61 and 62: 2 2/21 TECHNICAL DATA - DX..H (3/4
Page 63 and 64: 2 2/23 TECHNICAL DATA - DM Type Des
Page 65 and 66: 2 2/25 TECHNICAL DATA - D� Type D
Page 67 and 68: 2 2/27 I-t CHARACTERISTIC CURVES MC
Page 73 and 74: 2 2/33 125 250 I-t CHARACTERISTIC C
Page 75 and 76: 2 2/35 I-t CHARACTERISTIC CURVES DX
Page 77 and 78: 2 2/37 ORDERING DATA - DG RANGE MCC
Page 79 and 80: 2 2/39 ORDERING DATA - DL RANGE MCC
Page 81 and 82: 2 2/41 ORDERING DATA - DX..S (3 POL
Page 83 and 84: 2 2/43 ORDERING DATA - DM RANGE MCC
Page 85 and 86: 2 Accessory Coil Voltage / Location
Page 87 and 88: 2 Accessory Coil Voltage / Location
Page 89 and 90: 2 2/49 ACCESSORIES - ORDERING DATA
Page 91 and 92:
2 Accessory Type Std. Pack Catalgou
Page 93 and 94:
2 Accessory Type Std. Pack Catalgou
Page 95 and 96:
2 Accessory Coil Voltage / Location
Page 97 and 98:
2 2/57 OVERALL DIMENSIONS DIMENSION
Page 99 and 100:
2 Note: All dimensions are in mm. 2
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
2 2/77 OVERALL DIMENSIONS ROTARY OP
Page 119 and 120:
2 2/79 OVERALL DIMENSIONS & CONNECT
Page 121 and 122:
2 2/81 WIRING DIAGRAM EARTH �AULT
Page 123 and 124:
3 SWITCH DISCONNECTOR �USE SD�
Page 125 and 126:
3 3/1 Wide Range of SD�s suitable
Page 127 and 128:
3 Sheet-steel Enclosure 3/3 SHEET S
Page 129 and 130:
3 3/5 Conformance to IS 13947 (Part
Page 131 and 132:
3 ORDERING IN�ORMATION: Ordering
Page 133 and 134:
Page 135 and 136:
3 3/11 Conformance to IS 13947 (Par
Page 137 and 138:
3 3/13 WIDE RANGE O� SWITCH DISCO
Page 139 and 140:
3 3/15 Conformance to IS 13947 (Par
Page 141 and 142:
3 ORDERING IN�ORMATION: Ordering
Page 143 and 144:
3 3/19 ACCESSORIES �OR �N RANGE
Page 145 and 146:
3 3/21 SELECTION TABLE �OR HANDLE
Page 147 and 148:
3 �our breaking points per pole w
Page 149 and 150:
3 3/25 ACCESSORIES �OR CHANGEOVER
Page 151 and 152:
3 3/27 B 02, STANDARD REAR MOUNTING
Page 153 and 154:
3 AC SWITCHES (SERIES S, SG & TP) A
Page 155 and 156:
3 The switches of S, TP, SG & RT ty
Page 157 and 158:
3 AC SWITCHES (SERIES-S,SG,RT & TP)
Page 159 and 160:
3 B 33, ROUND PADLOCK Switches are
Page 161 and 162:
3 B 41, DOOR CLUTCH These switches
Page 163 and 164:
3 B 51, KEY OPERATED Switches suita
Page 165 and 166:
3 B 19, STANDARD 22.5 Switches with
Page 167 and 168:
3 Other size mounting plates at fro
Page 169 and 170:
3 SG-TYPE RECTANGULAR S-TYPE STAGE
Page 171 and 172:
3 ISOLATORS 60 o (ON-OFF SWITCHES)
Page 173 and 174:
3 ISOLATORS 45o SPRING RETURN (ON-O
Page 175 and 176:
3 CHANGE OVER SWTICHES 90 o (DOUBLE
Page 177 and 178:
3 MULTI STEP SWITCHES - 60 O (POLE
Page 179 and 180:
3 MULTI STEP SWTICHES - 45 o (POLE
Page 181 and 182:
3 AMMETER SELCTOR SWITCHES...Contd
Page 183 and 184:
3 MOTOR SWITCHES (AC3) STAR DELTA S
Page 185 and 186:
3 CONTROL SWITCHES 3/61 SCRIPT PROG
Page 187 and 188:
3 Example While placing the order,
Page 189 and 190:
3 3/65 ORDERING IN�ORMATION CUSTO
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
3 3/71 Extreme overall dimensions O
Page 197 and 198:
3 3/73 OVERALL DIMENSIONS SWITCH-DI
Page 199 and 200:
3 3/75 OVERALL DIMENSIONS SWITCH-DI
Page 201 and 202:
3 3/77 OVERALL DIMENSIONS SWITCH DI
Page 203 and 204:
Page 205 and 206:
4 HIGH RUPTURING CAPACITY �USE (H
Page 207 and 208:
4 4/2 TECHNICAL DATA & ORDERING IN
Page 209 and 210:
4 4/4 WIDE RANGE O� BS TYPE �US
Page 211 and 212:
4 4/6 TECHNICAL DATA & ORDERING IN
Page 213 and 214:
Page 215 and 216:
4 4/10 PRE-ARCING TIME (SECONDS) CU
Page 217 and 218:
5 Over Current Relays Page Types -
Page 219 and 220:
5 Other Relays Page Types - MX7/5,
Page 221 and 222:
5 5/2 TECHNICAL DATA THREE PHASE OV
Page 223 and 224:
5 5/4 ORDERING IN�ORMATION THREE
Page 225 and 226:
5 5/6 WIRING DIAGRAM CURRENT SENSIN
Page 227 and 228:
5 ✦ Easy Setting through front pa
Page 229 and 230:
5 5/10 ORDERING IN�ORMATION NEUTR
Page 231 and 232:
5 5/12 WIRING DIAGRAM SECONDARY REL
Page 233 and 234:
5 5/14 TECHNICAL DATA ✦ On line d
Page 235 and 236:
5 5/16 ORDERING IN�ORMATION POWER
Page 237 and 238:
5 5/18 WIRING DIAGRAM MOTOR PROTECT
Page 239 and 240:
5 5/20 TECHNICAL DATA GENERATOR PRO
Page 241 and 242:
5 5/22 ORDERING IN�ORMATION GENER
Page 243 and 244:
5 5/24 WIRING DIAGRAM SYNCHRONISING
Page 245 and 246:
5 5/26 TECHNICAL DATA VOLTAGE / �
Page 247 and 248:
5 5/28 ORDERING IN�ORMATION VOLTA
Page 249 and 250:
5 5/30 WIRING DIAGRAM TRANS�ORMER
Page 251 and 252:
5 5/32 TECHNICAL DATA CONTROL & SUP
Page 253 and 254:
5 5/34 ORDERING IN�ORMATION CONTR
Page 255 and 256:
5 5/36 WIRING DIAGRAM REVERSE POWER
Page 257 and 258:
6 MN9 to MN32 Page General Informat
Page 259 and 260:
6 6/1 SALIENT �EATURES O� MN CO
Page 261 and 262:
Page 263 and 264:
6 Mechanical �or Contactor type Q
Page 265 and 266:
6 6/7 Catalogue No. suffixes for ra
Page 267 and 268:
6 Auxiliary Contact Block Ie Ie Aux
Page 269 and 270:
6 6/11 Catalogue No. suffixes for r
Page 271 and 272:
6 Auxiliary Contact Block Ie Ie Aux
Page 273 and 274:
6 6/15 Catalogue No. suffixes for r
Page 275 and 276:
6 6/17 MN45 MN65 Mechanical Life Op
Page 277 and 278:
6 6/19 MN185 MN225 Mechanical Life
Page 279 and 280:
6 6/21 MN9W MN12W MN16W MN25W Mecha
Page 281 and 282:
6 6/23 ML0 ML1 ML1.5 ML2 ML3 Mechan
Page 283 and 284:
6 6/25 MM00-AC MM01-AC MM00-DC MM01
Page 285 and 286:
6 6/27 ELECTRICAL LI�E CURVES - T
Page 287 and 288:
6 6/29 ELECTRICAL LI�E CURVES - T
Page 289 and 290:
6 6/31 TERMINAL ARRANGEMENTS - TYPE
Page 291 and 292:
6 6/33 TERMINAL ARRANGEMENTS CONTRO
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
7 THERMAL OVERLOAD RELAYS MN1 to MN
Page 303 and 304:
7 MN12 MN12L 7/2 THERMAL OVERLOAD R
Page 305 and 306:
7 7/4 �or Contactor Setting Wt Qt
Page 307 and 308:
7 TECHNICAL DATA �OR THERMAL OVER
Page 309 and 310:
7 7/8 I-T CHARACTERISTICS 3 POLE BA
Page 311 and 312:
Page 313 and 314:
8 MN16 to MN65 Page 3-phase control
Page 315 and 316:
8 MA25 Page 3-phase control upto 30
Page 317 and 318:
8 MN16 MN25 8/2 DIRECT-ON-LINE STAR
Page 319 and 320:
8 ✦ Both �ASD and SASD version
Page 321 and 322:
8 ✦ Only �ASD version available
Page 323 and 324:
8 Catalogue No. suffixes for rated
Page 325 and 326:
8 MA25SASD/�ASD 8/10 STAR-DELTA S
Page 327 and 328:
8 ML3 8/12 DIRECT-ON-LINE STARTER -
Page 329 and 330:
8 ✦ Single phase and overload pro
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Page 337 and 338:
8 MK1 8/22 STAR-DELTA STARTERS - TY
Page 339 and 340:
Page 341 and 342:
8 Sr.No. 1 0.125 0.09 0.4 0.3 - 0.5
Page 343 and 344:
8 Sr. No. 1 1 0.75 2.1 1.21 0.9 - 1
Page 345 and 346:
8 Sr. No. 1 1 0.75 1.8 1.04 1 - 1.6
Page 347 and 348:
8 1 0.05 0.04 0.75 0.15 - 0.25 2 A
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
8 8/38 MN16 �ASD MN25, MN32 �AS
Page 355 and 356:
8 8/40 WIRING DETAILS MA25 �ASD M
Page 357 and 358:
8 8/42 ML2 �ASD ML3 �ASD WIRING
Page 359 and 360:
8 8/44 M�1 DOL (3 PHASE) STARTERS
Page 361 and 362:
9 Cable Ducts Page Product Data - T
Page 363 and 364:
9 ✦ Manufactured from specially c
Page 365 and 366:
9 S.No. Channel with Cover Width x
Page 367 and 368:
9 9/5 ORDERING DATA - TYPE B Descri
Page 369 and 370:
9 9/7 SALIENT �EATURES O� LIMIT
Page 371 and 372:
9 PC 600 SERIES SNAP PUSH ROD OPERA
Page 373 and 374:
9 PC 1000 SERIES SNAP WITH 1.2 KG P
Page 375 and 376:
9 9/13 TECHNICAL DATA LIMIT SWITCHE
Page 377 and 378:
9 9/15 ORDERING DATA Description Ca
Page 379 and 380:
9 9/17 SALIENT �EATURES O� TIME
Page 381 and 382:
9 9/19 ACCESSORIES Accessory Type D
Page 383 and 384:
9 9/21 RANGE AND ORDERING DATA ELEC
Page 385 and 386:
9 9/23 TECHNICAL DATA ELECTRONIC TI
Page 387 and 388:
9 Type 9/25 TECHNICAL DATA HOUR MET
Page 389 and 390:
9 ✦ Elegant and light weight. ✦
Page 391 and 392:
9 9/29 RANGE AND ORDERING DATA SELE
Page 393 and 394:
9 9/31 LENS CAP Colour SPARES Catal
Page 395 and 396:
9 BA 9S type 9/33 ACCESSORIES �IL
Page 397 and 398:
9 9/35 RANGE AND ORDERING DATA PUSH
Page 399 and 400:
9 9/37 GENERAL PURPOSE ENCLOSURES P
Page 401 and 402:
9 9/39 RANGE AND ORDERING DATA PUSH
Page 403 and 404:
9 9/41 TECHNICAL DATA Rated Voltage
Page 405 and 406:
Page 407 and 408:
Page 409 and 410:
9 9/47 PC�S-1 COMPACT TYPE Note:
Page 411 and 412:
Page 413 and 414:
Page 415 and 416:
9 9/53 Description L P Note: All di
Page 417 and 418:
11 11/1 INTRODUCTION : MOTOR PROTEC
Page 419 and 420:
11 Rated current (A) 11/3 SELECTION
Page 421 and 422:
11 Number of poles 3 3 Max. rated c
Page 423 and 424:
11 11/7 I-t CHARACTERISTICS - MG1
Page 425 and 426:
11 Note: All dimensions are in mm.
Page 427 and 428:
12 Series 26 D 19 M Type MPP-D MPP-
Page 429 and 430:
12 Series 16 � 20 � Type MD �
Page 431 and 432:
12 OVERALL DIMENSIONS - SERIES 19 M
Page 433 and 434:
12 OVERALL DIMENSIONS - SERIES 61 M
Page 435 and 436:
12 Output, Qn kVAr 10 13.91 20�31
Page 437 and 438:
12 Output, Qn kVAr 30 15+15 41.78 1
Page 439 and 440:
12 Output, Qn kVAr 45 15 x 3 62.68
Page 441 and 442:
12 Output, Qn kVAr 80 20 x 4 111.43
Page 443 and 444:
✦ Current Reversal Indication ✦
Page 445 and 446:
Accuracy Class 1.0 - IEC 1036 / IS
Page 447 and 448:
PRODUCT HIGHLIGHTS DISPLAY PARAMETE
Page 449 and 450:
ORDERING IN�ORMATION ELECTRONIC E
Page 451 and 452:
Note: All dimensions are in mm. OVE
Page 453 and 454:
Note: All dimensions are in mm. PAN
Page 455 and 456:
DISTRIBUTION BOARDS & ENCLOSURES 30
Page 457 and 458:
DISTRIBUTION BOARDS & ENCLOSURES co
Page 459 and 460:
NEW PROTECTION DEVICES miniature ci
Page 461 and 462:
NEW AUTOMATION & CONTROL DEVICES is
Page 463 and 464:
NEW AUTOMATION & CONTROL DEVICES th
Page 465 and 466:
volta enclosures IP30 insulated flu
Page 467 and 468:
miniature circuit breakers - Type N
Page 469 and 470:
esidual current circuit breakers (R
Page 471 and 472:
PROTECTION DEVICES, AUTOMATION & CO
Page 473 and 474:
twilight switch The switch measures
Page 475 and 476:
thermostats These devices can be us
Page 477 and 478:
16A plug & socket board with SP MCB
Page 479 and 480:
INDVICTA RANGE DIMENSIONS Indvicta
Page 481 and 482:
SYSTEM BUILDING WITH INDVICTA DISTR
Page 483 and 484:
Cosmos Phase changeover universal d
Page 485 and 486:
Data Communication Components Page
Page 487 and 488:
BUS US ENCLOSURE ENCLOSURE BG BG (P
Page 489 and 490:
COMP COMPACT COMP CT ENCLOSURE ENCL
Page 491 and 492:
COMP COMPACT COMP CT ENCLOSURES ENC
Page 493 and 494:
MODULE MODULE COMBI COMBI SYSTEM SY
Page 495 and 496:
EX EX ENCLOSURES ENCLOSURES KEL KEL
Page 497 and 498:
482.6 482.6 MM MM (19") (19") SUBRA
Page 499 and 500:
METRIC METRIC SUBRA SUBRACK SUBRA C
Page 501 and 502:
SUBRA SUBRACKS/CASES SUBRA CKS/CASE
Page 503 and 504:
RITT RITTAL RITT AL ELECTR ELECTRON
Page 505 and 506:
RITT RITTAL RITT AL VARIO-RA ARIO-R
Page 507 and 508:
WALL ALL MOUNTED MOUNTED COOLING CO
Page 509 and 510:
AIR/W AIR/WATER AIR/W TER HEA HEAT
Page 511 and 512:
RA RACK-MOUNTED RA CK-MOUNTED F FFA
Page 513 and 514:
Bar thickness (cross-section) PLS 8
Page 515 and 516:
* AWG = American Wire Gauges AWG 10
Page 517 and 518:
DK DK NETW NETWORK NETW ORK ENCLOSU
Page 519 and 520:
DK DK NETW NETWORK NETW ORK ENCLOSU
Page 521 and 522:
DK DK SMALL SMALL FIBRE-OPTIC FIBRE
Page 523 and 524:
FM FM WALL-MOUNTED ALL-MOUNTED DIST
Page 525 and 526:
CS CS OUTDOOR OUTDOOR MODULAR MODUL
Page 527 and 528:
SALIENT �EATURES O� INDICATING
Page 529 and 530:
ACCESSORIES Accessory Type Catalogu
Page 531 and 532:
DC Voltmeters DC Ammeters RC. MOVIN
Page 533 and 534:
Special DC Meters RD. SPECIAL DC ME
Page 535:
TECHNICAL DATA Type of Moving iron
show all

AIR CIRCUIT BREAKERS - Electrical and Electronics Division

Create successful ePaper yourself

Delete template?

Save as template?