Wiring Diagram Book
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File 0140 L1 L2 L3 GND AC L1 L2 OFF A1 B1 START L1 13 21 ON 15 B2 START F F B2 M OL B1STOP B3STOP STOP 2 3 U U 1 15 22 1 2 14 460 V 230 V START H1 H3 H2 H4 X3 X2 H1 H3 H2 H4 Orange H Green Supply voltage 16 18 M LOAD Optional Connection 16 B3 L X1 M L2 X1115 V X2 Electrostatically 18 A2 AC Shielded Transformer 2 Levels 1 2 4 R Power 5 6 8 F F On F F Location U U U U Status 9 10 12 3 5 6 4 (N.O. or N.C.) 13 21 31 43 53 13 (–) 14 (+) X1A X2A Optional A1/+ 15 25 Z1 Z2 14 22 32 44 54 A1 B1 15 B2 B2 B1 B3 HAZARDOUS LOCATIONS NONHAZARDOUS LOCATIONS 15 CLASS I GROUPS A, B, C & D CLASS II GROUPS E, F & G CLASS III H FIBER OPTIC FIBER OPTIC Supply voltage 16 18 PUSH BUTTON, TRANSCEIVER 16 B3 L 16 1826 28 A2/– SELECTOR SWITCH, M LIMIT SWITCH, ETC. CLASS 9005 TYPE FT 18 A2 V 2 Levels s FIBER OPTIC CABLE FIBER OPTIC CABLE ELECTRICAL CONNECTIONS M 1CT T1 A1 L1 135 BOUNDARY SEAL TO BE IN L1 L2 L3 ACCORDANCE WITH ARTICLE 501-5 OF THE NATIONAL M T2 ELECTRICAL CODE L2 MOTOR A1 A2 A2 M 3CT T3 3 L3 CIRCUIT BREAKER OR DISCONNECT SWITCH L1 L2 L3 SOLID STATE T1 T2 T3 1 OVERLOAD RELAY TO 120 V SEPARATE CONTROL MOTOR STOP START OT* * OT is a switch that opens 2 T1 T2 T3 M when an overtemperature T1 T2 T3 M condition exists (Type MFO and MGO only) 246 Wiring Diagram Book TRADEMARKS QWIK-STOP® and ALHPA-PAK® are registered trademarks of Square D. NEC® is a registered trademark of the National Fire Protection Association. COPYRIGHT NOTICE © 1993 Square D. All rights reserved. This document may not be copied in whole or in part, or trans- ferred to any other media, without the written permission of Square D. PLEASE NOTE: Electrical equipment should be serviced only by qualified electrical maintenance personnel, and this document should not be viewed as sufficient instruction for those who are not otherwise qualified to operate, service or maintain the equipment discussed. Although reasonable care has been taken to pro- vide accurate and authoritative information in this document, no responsibility is assumed by Square D for any consequences arising out of the use of this material. Table of Contents Standard Elementary Diagram Symbols .....................1-3 Sensing Relays............................................................... 30 RM2 LA1/LG1 30 NEMA and IEC Markings and Schematic Diagrams...... 4 Control and Power Connection Table 4 IEC Relays.................................................................. 31-32 IEC D-Line Control Relays 31 Terminology...................................................................... 5 Class 8501 32 Examples of Control Circuits .......................................... 6 Type P Contactors..................................................... 33-35 2-Wire Control 6 Class 8502 33-35 3-Wire Control 6-9 Class 8702 35 Shunting Thermal Units During Starting Period 10 Overcurrent Protection for 3-Wire Control Circuits 11 Type T Overload Relays............................................ 33-35 Class 9065 33-35 AC Manual Starters and Manual Motor Starting Switches ........................................................... 12 Type S AC Magnetic Contactors.............................. 36-40 Class 2510 12 Class 8502 36-40 Class 2511 and 2512 13 IEC Contactors .......................................................... 41-42 2-Speed AC Manual Starters and IEC Motor Protectors...................................................... 14 IEC Contactors and Auxiliary Contact Blocks 41 Input Modules and Reversing Contactors 42 Class 2512 and 2520 14 GV1/GV3 14 Type S AC Magnetic Starters ................................... 43-50 Drum Switches................................................................ 15 Class 8536 43-50 8538 and 8539 45,49 Class 2601 15 1-Phase, Size 00 to 3 43 2-Phase and 3-Phase, Size 00 to 5 44 DC Starters, Constant and Adjustable Speed.............. 16 3-Phase, Size 6 45 Class 7135 and 7136 16 3-Phase, Size 7 46 3-Phase Additions and Special Features 47-50 Reversing DC Starters, Constant and Adjustable Speed ........................................................... 17 Integral Self-Protected Starters ............................... 51-57 Class 7145 and 7146 17 Integral 18 State of Auxiliary Contacts 51-52 Integral 32 and 63 State of Auxiliary Contacts 53-54 Mechanically Latched Contactors ................................ 18 Wiring Diagrams 55-57 Class 8196 18 Type S AC Combination Magnetic Starters ............ 58-59 Medium Voltage Motor Controllers..........................18-25 Class 8538 and 8539 58-59 Class 8198 18-25 3-Phase, Size 0-5 58 3-Phase Additions and Special Features 59 Solid State Protective Relays...................................26-27 Reduced Voltage Controllers ................................... 60-66 Class 8430 26-27 Class 8606 Autotransformer Type 60-61 Class 8630 Wye-Delta Type 62-63 General Purpose Relays ................................................ 28 Class 8640 2-Step Part-Winding Type 64 Class 8501 28 Class 8647 Primary-Resistor Type 65 Class 8650 and 8651 Wound-Rotor Type 66 NEMA Control Relays..................................................... 29 Class 8501 and 9999 29 Solid State Reduced Voltage Starters .......................... 67 Class 8660 ALPHA PAK®, Type MD-MG 67 General Purpose Relays ................................................ 30 Class 8501 30 Solid State Reduced Voltage Controllers ............... 68-70 Class 8660 Type MH, MJ, MK and MM 68-70 ® i Table of Contents Type S AC Reversing Magnetic Starters71-72 Pneumatic Timing Relays and Solid State Class 873671-72 Industrial Timing Relays95-96 2- and 3-Pole71 Class 905095-96 3- and 4-Pole72 Timers97 Type S AC 2-Speed Magnetic Starters73-76 Class 905097 Class 881073-76 Special Control Circuits75-76 Transformer Disconnects98 Class 907098 Multispeed Motor Connections76-77 1- Phase76 Enclosure Selection Guide99 3-Phase76-77 Conductor Ampacity and Conduit Tables100-101 Programmable Lighting Controllers78 Class 886578 Wire Data102 AC Lighting Contactors79-81 Electrical Formulas103-104 Class 890379-81 Load Connections79 Control Circuit Connections80 Panelboard Type Wiring81 Electronic Motor Brakes81-82 List of Tables ® Class 8922 QWIK-STOP 81-82 Table 1 Standard Elementary Diagram Symbols 1 Table 2 NEMA and IEC Terminal Markings 4 Duplex Motor Controllers82 Class 894182 Table 3 NEMA and IEC Controller Markings and Elementary Diagrams 4 Fiber Optic Transceivers82 Table 4 Control and Power Connections for Across-the-Line Starters, 600 V or less4 Class 900582 Table 5 Motor Lead Connections 64 Photoelectric and Inductive Proximity Switches83 Table 6 Enclosures for Non-Hazardous Locations 99 Class 900683 Table 7 Enclosures for Hazardous Locations 99 Table 8 Conductor Ampacity100 Photoelectric and Proximity Sensors84-89 Table 9 Ampacity Correction Factors 101 XS, XSC, XSF and XSD84 XS and XTA85 Table 10 Adjustment Factors 101 SG, ST and XUB86 Table 11 Ratings for 120/240 V, 3-Wire, XUM, XUH, XUG, XUL and XUJ87 Single-Phase Dwelling Services101 XUE, XUR, XUD, XUG and XUE S88 Table 12 AWG and Metric Wire Data 102 XUV89 Table 13 Electrical Formulas for Amperes, Horsepower, Kilowatts and KVA 103 Limit Switches and Safety Interlocks90-92 Table 14 Ratings for 3-Phase, Single-Speed, Class 900791 Full-Voltage Magnetic Controllers XCK and MS92 for Nonplugglng and Nonjogging Duty 103 Pressure Switches and Transducers93 Table 15 Ratings for 3-Phase, Single-Speed, Full-Voltage Magnetic Controllers for Plug- Class 9012, 9013, 9022 and 902593 Stop, Plug-Reverse or Jogging Duty 104 Table 16 Power Conversions 104 Level Sensors and Electric Alternators94 Class 9034 and 903994 ® ii Standard Elementary Diagram Symbols The diagram symbols in Table 1 are used by Square D and, where applicable, conform to NEMA (National Electrical Manufacturers Association) standards. Table 1 Standard Elementary Diagram Symbols SWITCHES SELECTORS Disconnect Circuit Interrupter Circuit Breakers Circuit Breakers 2-Position Selector Switch w/ Thermal OL w/ Magnetic OL J K A1 A2 JK A1 A2 Pressure & Liquid Level Switches Temperature Vacuum Switches Actuated Switches 3-Position Selector Switch N.O. N.C. N.O. N.C. N.O. N.C. K J L A1 A2 JKL Limit Switches Speed (Plugging) Anti-Plug A1 N.O. N.C. FF F A2 2-Position Selector Push Button A B Held Closed Held Open 1 2 3 4 R R Selector Push Contacts Position Button 1-2 3-4 Flow Switches Foot Switches Free N.O. N.C. A N.O. N.C. Depressed Free B Depressed = contact closed PUSH BUTTONS – MOMENTARY CONTACT PUSH BUTTONS – MAINTAINED CONTACT N.O. N.C. N.O. & N.C. Mushroom Wobble Illuminated 2 Single 1 Double (double circuit) Head Stick Circuits Circuit R PILOT LIGHTS INSTANT OPERATING CONTACTS TIMED CONTACTS Non Push-to-Test Push-to-Test w/ Blowout w/o Blowout Contact action retarded after coil is: N.O. N.C. N.O. N.C. Energized Deenergized A N.O.T.C. N.C.T.O. N.O.T.O. N.C.T.C. G (indicate color by letter) 1 Standard Elementary Diagram Symbols Table 1 Standard Elementary Diagram Symbols (cont'd) INDUCTORS TRANSFORMERS Iron Core Air Core Auto Iron Core Air Core Current Dual Voltage OVERLOAD RELAYS AC MOTORS Thermal Magnetic Single Phase 3-Phase 2-Phase, 4-Wire Wound Rotor Squirrel Cage DC MOTORS Armature Shunt Field Series Field Commutating or (show 4 loops) (show 3 loops) Compensating Field (show 2 loops) WIRING Not Connected Connected Power Control Terminal Ground Mechanical Mechanical Connection Interlock Connection CAPACITORS RESISTORS Fixed Adjustable Fixed Heating Adjustable, Rheostat, Element by Fixed Taps Potentiometer or Adjustable Taps RES H RES RES SEMICONDUCTORS Diode or Half Tunnel Zener Bidirectional Triac SCR PUT Photosensitive Wave Rectifier Diode Diode Breakdown Diode Cell Full Wave NPN PNP UJT, UJT, Gate Turn-Of Rectifier Transistor Transistor N Base P Base Thyristor C C AC B2 B2 A E E + B B DC DC G B1 B1 E E K AC 2 Standard Elementary Diagram Symbols Table 1 Standard Elementary Diagram Symbols (cont'd) OTHER COMPONENTS Bell Annunciator Buzzer Horn, Alarm, Meter (indicate Siren,etc. type by letters) VM Battery Fuse Thermocouple Meter Shunt +– SUPPLEMENTARY CONTACT SYMBOLS SPST, N.O.