Type S Contactors and Starters Class 8536/8502/8736/8702/8810/8811/8812 CONTENTS Description Page Magnetic Contactors and Starters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Reversing Magnetic Starters and Contactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Motor Starters Multi-Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents SECTION 1 – MAGNETIC CONTACTORS AND STARTERS Application Data – Class 8502, 8536 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Selection – Class 8502 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 Selection – Class 8536 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12 Application Data – Class 8502, 8536 . . . . . . . . . . . . . . . . . . . . . . . . . . 13-16 Approximate Dimensions, Shipping Weights – Class 8502, 8536 . .
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 Type SCO2 Size 1, 3-Pole Contactor Type SCO3 Size 1, 3-Pole Starter AC MAGNETIC CONTACTORS CLASS 8502 AC MAGNETIC STARTERS CLASS 8536 General Information General Information Class 8502 Type S magnetic contactors are used to switch heating loads, capacitors, transformers, and electric motors where overload protection is separately provided. Class 8502 contactors are available in NEMA Sizes 00-7.
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 and automatic reset, trip current adjustment, and an alarm contact on Sizes 0-2. For additional information, see the Class 9065 catalog section. To order Type S starters with bimetallic overload relays, see Factory Modifications (FORMS). Enclosures Class 8536 magnetic starters are available in the following enclosures.
Full Voltage Contactors — NEMA Selection – Class 8502 3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz Continuous Current Ratings Motor Volts 00 9 Separate Controlj 200 230 460 575 0 18 1 2 NEMA Size Type SC02 Size 1, 3-Pole Contactor Max.
Full Voltage Contactors — NEMA Selection – Class 8502 3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz Continuous Current Ratings NEMA Size Motor Volts Max.
Full Voltage Contactors — NEMA Selection – Class 8502 600 Volts AC Maximum — 50-60 Hertz NEMA Size Continuous Current Ratings Motor Volts Max.
Full Voltage Contactors — NEMA Selection – Class 8502 600 Volts AC Maximum — 50-60 Hertz NEMA Size Continuous Current Ratings Motor Volts Max. HP t Coil Voltage NEMA Type 4X Watertight, Dusttight, Corrosion-Resistant Glass-Polyester Enclosure NEMA Type 7 & 9 Hazardous Locations Class I, Groups C & D Class II, Groups E, F, & G Bolted Type Type Cast Ironc Cast Aluminum ...
Full Voltage Starters — NEMA Selection – Class 8536 3-Pole Polyphase—600 Volt AC Max. 50/60 Hz—Three Thermal Units Required Continuous Motor NEMA Current Volts Size Ratings Max.
Full Voltage Starters — NEMA Selection – Class 8536 3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz—Three Thermal Units Required Continuous Current Ratings NEMA Size Motor Volts Max.
Full Voltage Starters — NEMA Selection – Class 8536 2-Pole Single Phase — 600 Volts AC Maximum — 50-60 Hertz Thermal Units — One Thermal Unit Required Continuous Motor NEMA Current Volts Size Ratings 00 9 0 18 1 27 1P 36 2 45 Max.
Full Voltage Starters — NEMA Selection – Class 8536 2-Pole Single Phase — 600 Volts AC Maximum — 50-60 Hertz — One Thermal Unit Required Devices require 1 thermal unit Continuous Current Ratings NEMA Size 00 115 230 115 230 115 230 115 230 115 230 9 0 18 1 27 1P 36 2 45 Motor Volts Max.
Full Voltage Starters Selection – Class 8536 Types SB-SD with Auxiliary Load Terminals – Class 8536 3-Pole Polyphase — Three Thermal Units Required It is sometimes desirable to use the capacitors in motor branch circuits to improve power factor. The Size 0-2 Type SB-SD starters listed included three auxiliary terminals to allow easy connection of power factor correction capacitors. When capacitors are connected using these terminals, no adjustment on the selection of thermal units is necessary.
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 NEMA Load Size Volts Maximum Horsepower Rating – Nonplugging and Nonjogging Duty Single PolyPhase Phase KVA Rating for Switching Transformer Primaries at 50 or 60 Cycles Tungsten Resistance Maximum Transformers Transformers and Heating Loads, Continuous Service – Horsepower Having Inrush Having Inrush Infrared KW – Other Current Limit Rating – Currents (Worst Currents (Worst Lamp Than Infrared Rating, Current Plugging and Ca
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 CLASS 8502 AND 8536 APPLICATION DATA Power Contact Ratings All contactors and starters are rated in accordance with NEMA standards. The ratings shown in the price tables are for normal service. For complete data on power contact ratings, refer to Page 13. Maintenance of Equipment Class 9998 Repair Parts Kits are available for all Class 8502 contactors and Class 8536 starters.
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 Control Circuit Transformers Auxiliary Units Auxiliary contacts, power poles, and timer attachments can be added by the factory or in the field on all Type S starters and contactors. The table below shows the maximum number of auxiliary units (in addition to the holding circuit contact) that can be added to a given size starter or contactor.
Full Voltage Contactors and Starters — NEMA Application Data – Class 8502, 8536 Size 6 Type SH and Size 7 Type SJ Contactors and Starters Size 6 Type SH and Size 7 Type SJ contactors and starters have a DC coil operated by a solid state rectifier circuit mounted on the device and powered from an ac source. The Size 6 and 7 are equipped as standard with a fused control circuit transformer (Form F4T) rated 240/480-120 volts 60 hertz, 220/440-110 volts 50 hertz.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 Class 8502 Open Type Class 8536 Open Type A A D E G F C F C G B H B H RESET I Figure 1 I D E Figure 2 Class 8502 NEMA Size Type Dimensions – Inches/mm (Refer to Appropriate Figure) No. Fig. Mtg. A B C D E F of No. Screws Poles IN mm IN mm IN mm IN mm IN mm IN 00 SAO 2-3 0 1 SBO SCO 1-3 4-5 2 SDO 3 G H Wt (Lbs) I mm IN mm IN mm IN mm (2) #10 3.22 82 4.34 110 4.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 NEMA Type 1 — General Purpose Enclosure B E H (3) Closing Plates A D K L C Pilot Light K (4) I Dia. Mounting Holes A J H E G A F B B G F RESET RESET H G H I H E Figure 3 D F C C Figure 4 Figure 5 NEMA Size Class Type No. of Poles Fig. Mtg. No.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 A E D NEMA Type 4 & 4X — Stainless Steel Watertight Enclosuresq G D B I J K 8502 SBW SCW All 6.38 162 7.13 181 13.19 335 1.56 3.25 40 83 12.00 .59 305 15 1.19 30 11.78 299 1.63 41 ... SBW SCW All 6.38 162 7.81 198 13.19 335 1.56 3.25 40 83 12.00 .59 305 15 1.88 48 11.78 299 1.63 41 1" Dia. Hub 17 8536 2.31 .31 59 8 3⁄4" Dia. 2.31 .31 Hub 59 8 ... 18 8.13 207 7.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 A E D D B G Size 2 Only A E F C (2) L Dia. Mounting Holes (Size 1) Size 2 Only (4) L Dia. Mounting Holes (Size 2) C F RESET G 1.00 Conduit Hub Top and Bottom Size 1 Conduit Hub 38 Top and Bottom Size 2 .75 Conduit Hub in 19 Bottom Size 1 and Size 2 25 1.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 NEMA Type 7 & 9 Enclosures for Hazardous Locations Sizes 0-2, Bolted Cover, Cast Iron, Sizes 0-5, Bolted Cover, Cast Aluminum, Sizes 0-5, SPIN TOP®, Cast Aluminum Top View Rear View Space Required To Remove Top Cover 12.00 11.00 (1) 1-11 1/2 Pipe Tap at Top Std. 279 .63 9.75 248 9.25 16 235 2.40 4.90 61 260 2.40 .25 178 16 125 10.75 273 10.25 16 7.00 .63 .25 191 16 149 E Q 7.
Full Voltage Contactors and Starters — NEMA Approximate Dimensions, Shipping Weights – Class 8502, 8536 D A E D NEMA Type 12 — Dusttight Enclosure G F C NEMA Class Size Type 0 SBA Dimensions – Inches/mm (Figure 16) No. of B C D E F Poles A 8502 & 8536 1 SCA I 2 8502 & 8536 SDA 3 H Figure 16 NEMA Type 12 Industrial Use Enclosure D A E D G F C I I J Class Class 8502 8536 8.53 217 12.75 324 1.56 40 3.25 83 12.00 305 .38 10 3.56 90 12.25 311 .31 8 15 16 All 8.13 207 9.
Full Voltage Contactors — NEMA Application Data Altitude Electrical Ratings Characteristic Size 4 Size 5 Size 6 40 50 75 100 100 75 100 150 200 200 150 200 300 400 400 80 160 200 160 320 400 Maximum Motor HP at: 200 V 230 V 380 V 460 V 575 V The vacuum contactor is designed to tolerate normal barometric pressure variances up to 6600 feet above sea level. If the contactor is to be used above 6600 feet above sea level, please consult the factory.
Full Voltage Contactors — NEMA Selection – Class 8502 Class 8502 – Full Voltage Vacuum Contactors NEMA Size Enclosed Ampere Rating NEMA Type 1 General Purpose Enclosure NEMA Type 4 & 4X Watertight, Dusttight Brushed Stainless Steel Enclosure (Size 4 & 5 only) NEMA Type 12 Dusttight & Driptight Industrial Use Enclosure Locked Rotor Current (Amps) Motor Volts Max.
Contents SECTION 2 – REVERSING MAGNETIC STARTERS AND CONTACTORS Application Data – Class 8702, 8736 . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28 Selection – Class 8702 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-30 Selection – Class 8736 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-32 Application Data – Class 8702, 8736 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Approximate Dimensions – Class 8702, 8736 . . . . . . .
26 © 1998 Square D All Rights Reserved 5/98
Full Voltage Reversing Contactors and Starters — NEMA Application Data – Class 8702, 8736 Size 00, 0, 1 Reversing Contactor AC MAGNETIC REVERSING CONTACTORS CLASS 8702 ambient insensitive and features phase loss, phase unbalance and over-current protection. General Information MOTOR LOGIC™ Solid State Overload Relay (SSOLR) Class 8702 Type S reversing magnetic contactors are used for starting, stopping, and reversing AC motors where overload protection is separately provided.
Full Voltage Reversing Contactors and Starters — NEMA Application Data – Class 8702, 8736 Holding Circuit Contact Mechanical Interlocks Two normally open holding circuit contacts are provided on all reversing contactors and starters as standard. Sizes 00-2 contactors use a Class 9999 SX11 auxiliary contact as the holding circuit contact. Sizes 3-7 contactors use a Class 9999 SX6 auxiliary contact as the holding circuit contact.
Full Voltage Reversing Contactors — NEMA Selection – Class 8702 3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz NEMA Continuous Motor Max.
Full Voltage Reversing Contactors — NEMA Selection – Class 8702 600 Volts AC Maximum — 50-60 Hertz Continuous Motor NEMA Current Volts Size Ratings Max.
Full Voltage Reversing Starters — NEMA Selection – Class 8736 3-Pole Polyphase—Three Thermal Units Required Continuous Motor NEMA Current Volts Size Ratings 00 0 1 2 3 4 5 6 7 f j t Max.
Full Voltage Reversing Starters — NEMA Selection – Class 8736 600 Volts AC Maximum — 50-60 Hertz Continuous Motor NEMA Current Volts Size Ratings Max. HP NEMA Type 1 General Purpose Enclosure Open Type t Type of Coil Motor Voltage Vertical Horizontal Type Type Type 2-Pole Single Phase — 1 Thermal Unit Required 1⁄3 115 00 9 230 1 Single 115 1 0 18 Phase 230 2 3-Wire 115 2 1 27 230 3 3-Pole Single Phase — 1 Thermal Unit Required 1⁄3 4-Wire 115 230 1 Rep.-Ind. 00 9 1⁄3 115 4-Wire 230 1 Split Ph.
Full Voltage Reversing Contactors and Starters — NEMA Application Data – Class 8702, 8736 Power Contact Ratings Auxiliary Units All contactors are rated in accordance with NEMA standards. The ratings shown in the tables on Pages 29-32 are for normal service. For complete data on power contact ratings, refer to Class 8536 Section.
Full Voltage Reversing Contactors and Starters — NEMA Approximate Dimensions – Class 8702, 8736 Open Type — 2 or 3-Pole Only A D F G E A D C E G F C H I B H B RESET J J Class K NEMA Type Size Mounting Figure Dimensions — Inches/mm Number A B C D 00 Horizontal 1 7.13 181 5.00 127 5.31 135 1 7.13 181 5.00 127 5.31 135 1t 5.41 137 9.22 234 5.31 135 1 9.00 229 6.88 175 6.03 153 1t 6.75 171 11.38 289 6.03 153 1 12.72 323 7.97 202 1t 7.
Full Voltage Reversing Contacators and Starters — NEMA Approximate Dimensions – Class 8702, 8736 A H (4) I Dia. Mounting Holes A C B B G RESET E F D C 1.50 H 38 Figure 4 D A E G D FC B G (4) L Dia. Mounting Holes I WX J H K Figure 6 D A E D G Figure 5 NEMA Type 1 Dimensions — Inches/mm C NEMA Class Fig. A B D Size No. No. 8702 8736 IN mm IN mm IN mm IN mm IN Wt (Lbs) E F G mm IN mm IN mm IN H B G (4) J Dia. Mounting Holes 00, 0 j 8702 & 11.88 302 11.88 302 7.41 188 7.
Full Voltage Reversing Contactors and Starters — NEMA Approximate Dimensions – Class 8702, 8736 NEMA Type 4X — Watertight and Corrosion Resistant Glass Polyester Enclosure A E NEMA Class Size C F Type A No. of Fig. Poles IN B C mm IN mm IN E F mm IN mm IN mm 0-2 SBW 8702/36 SCW SDW All 16.88 429 9.78 248 22.75 578 10.13 257 21.50 546 0-2 t SBW 8702/36 SCW SDW All 24.63 626 11.94 303 27.00 686 17.88 454 25.75 654 3-4 8702/36 SEW SPW All 25.81 656 11.94 303 33.
Full Voltage Contactors — NEMA Application Data, Selection – Class 8702 Auxiliary Contact Units Class 8702 Type WF Reversing Vacuum Contactor Additional auxiliary contact units may be added to the Size 4 and 5 reversing contactors in the field. A maximum of 2 units may be added to the Size 4; a maximum of 1 unit may be added to the Size 5. No additional units may be added to the Size 6, however, 1 N.O. and 1 N.C. circuit are available on each forward and reverse contactor for customer use.
Full Voltage Contactors — NEMA Selection – Class 8702 Class 9998 – Replacement Coils for Class 8502 and 8702 Vacuum Contactors Size Type 4 5 6 Poles WF WG WH Hertz Suffix Number (Complete Coil Number Consists of Class and Type Followed by Suffix Number) 50 60 120 Volts 110 Volts 240 Volts 220 Volts 480 Volts 440 Volts 600 Volts 550 Volts 120 240 480 600 Class & Type 9998WF 9998WG 9998WH All Class 9999 – Vacuum Contactor Kits For Use With Kit Description Class 9999 Type Auxiliary Contac
Contents SECTION 3 – MOTOR STARTERS MULTI-SPEED Application Data – Class 8810, 8811, 8812 . . . . . . . . . . . . . . . . . . . . . 40-41 Line Voltage — with Melting Alloy Overload Relays – Class 8810. . . . . . . 42 Reversing Line Voltage Type — with Melting Alloy Overload Relays – Class 8810 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Line Voltage — with Melting Alloy Overload Relays or Solid State Overload Relays – Class 8810. . . . . . . . . . . . . . .
AC Multispeed Magnetic Starters Application Data – Class 8810, 8811, 8812 Typical Schematic Diagrams High 4 Low 5 H 1 Stop Multispeed motors are available in two basic versions: L OL OL L High 3 L 2 H H L1 L2 L3 L L L H OL OL OL H L T1 T2 H OL OL T3 OL Separate winding motors are usually chosen when flexibility is important, since the speeds of a consequent pole motor are usually limited to a 2/1 ratio; a broad range of speeds can be obtained on a separate winding motor.
AC Multispeed Magnetic Starters Application Data – Class 8810, 8811, 8812 ADDITIONAL FEATURES Special Pilot Lighting High 4 Low 5 H 1 Stop L OL OL L 2 L High 3 L H H General On Standard starters are not equipped with any special relays to require starting at lowest speed, progressive acceleration or deceleration through each speed, etc.
AC Two Speed Magnetic Starters Line Voltage — with Melting Alloy Overload Relays – Class 8810 Line voltage type, ac two speed starters are designed to control reconnectable squirrel cage motors to operate at two different constant speeds, depending upon their construction. The use of an automatic starter and proper control station permits greater operating efficiency and offers protection to both motor and machine against improper sequencing or too rapid speed change.
AC Reversing Two Speed Magnetic Starters Line Voltage Type — with Melting Alloy Overload Relays – Class 8810 Class 8810 AC reversing two speed starters combine the functions of reversing and speed selection in one controller. The units are electrically and mechanically interlocked, and include motor running overcurrent protection. Typical applications include conveyors, drilling and tapping machines, and cooling tower fans. Many of these applications also require the special relay features.
AC Two Speed Magnetic Starters Line Voltage — with Melting Alloy Overload Relays or Solid State Overload Relays – Class 8810 Class 8810 — Non-Reversing — Horizontally Arranged Starters q j Glass Polyester Watertight, Dusttight and Corrosion Resistant Enclosure 50-60 Hertz – 600 Volts Maximum For Consequent Pole Motors Maximum Horsepower Ratings For Separate Winding Motors Type of Motor NEMA Size 200 V 230 V 380 V 460-575 V Type Type Constant Horsepower 0 1 2 3 4 2 5 71⁄2 20 30 2 5 10 25 40 3
AC Two Speed Magnetic Starters Line Voltage — with Melting Alloy Overload Relays or Solid State Overload Relays – Class 8810 Special Arrangements with Three Devices Three Type S Contactors can be mechanically interlocked so that only one contactor can be energized at any one time. The mechanical interlock, pictured in Figure 2, is an interference (non-jamming) type locking at the beginning of the stroke of any contactor. Factory assembled units are listed in the table below.
Three and Four Speed AC Magnetic Starters Line Voltage — with Melting Alloy Overload Relays – Class 8811, 8812 Class 881 and 8812 line voltage starters are designed to control 3 and 4 speed motors, respectively. The use of an automatic starter and proper control station permits greater efficiency. The addition of compelling relays to a starter gives protection to both the motor and the machine against an improper sequence or a too rapid change in speed.
AC Multispeed Magnetic Starters Application Data – Class 8810, 8811, 8812 Application Data for Types SB-SH Form Designations for Factory Installation of Electrical Interlocks Additional Electrical Interlocks on High Starter Standard (No Additional Interlocks) Additional Electrical Interlocks on Low Starter Standard (No Additional Interlocks) Change N.O. Holding Circuit Interlock to N.C. 1 N.O. 1 N.C. 2 N.O. 1 N.O.-1 N.C. 2 N.C. X01 X02 X03 X05 X06 X07 Change N.O.
AC Multispeed Magnetic Starters Application Data for Types SB-SJ – Class 8810, 8811, 8812 MECHANICAL INTERLOCK General Class 9999 Type SM-1 Mechanical Interlock For Two Contactors Horizontally Mounted Type S contactors or starters can be mechanically interlocked so that only one device will be energized at a time. The mechanical interlock is an interference (non-jamming) type, locking at the beginning of the stroke of any starter or contactor.
AC Two Speed Magnetic Starters Dimensions – Class 8810, 8811, 8812 Non-Reversing — Open Type Approximate Dimensions .50 A 13 7.00 C A D 178 E E F G .50 C 13 B D I H RESET B RESET RESET P .50 F I 13 Provision for (4) .31 Dia. Mounting Screws 8 H Travel M J L K G N K RESET J Figure 1 Class 8810, Sizes 0, 1 & 2 Types SBO, SCO & SDO .56 Reset Travel 14 6.
AC Magnetic Starters Application Data – Class 8810, 8811, 8812 Non-Reversing — Non-Combination — Enclosed Approximate Dimensions A D (4) H Dia. Mounting Holes E G B RESET RESET F C Figure 1 NEMA Type 1 Enclosure – Figure 1 A B C D E F G H Type IN mm IN mm IN mm IN mm IN mm IN mm IN mm IN mm SBG and SCG 11.88 302 11.88 302 7.53 191 9.75 248 1.06 27 1.06 27 9.75 248 .31 8 SDG 14.88 378 14.13 359 7.66 195 12.75 324 1.06 27 1.06 27 12.00 305 .
AC Magnetic Starters Application Data – Class 8810, 8811, 8812 Non-Reversing — Non-Combination — Enclosed Approximate Dimensions A D E C G B RESET RESET J I F (4) H Dia. Mounting Holes Figure 3 NEMA Type 4 Enclosure – Figure 3 A B C D E F G H I J Type IN mm IN mm IN mm IN mm IN mm IN mm IN mm IN mm IN mm IN mm SBW and SCW 12.63 321 14.69 373 7.81 198 4.25 108 4.19 106 .59 15 13.50 343 .31 8 1.66 42 2.31 59 SDW 14.88 378 15.75 400 8.25 210 4.
AC Two Speed Combination Starters Disconnect Switch or Circuit Breaker Type – Class 8810, 8811, 8812 “Quick Ship Only” Approximate Dimensions NEMA Type 1 Enclosure – Figure 1 Dimensions — Inches/mm NEMA Class Type Size A B C D E Top & Bottom Sides F G H I J K L M N O P W X Y 0-1 8810 SBG SCG 13.88 353 23.13 588 8.25 210 10.63 270 21.00 533 19.28 490 1.88 48 1.88 48 3.75 95 2.31 59 1.06 27 3.30 84 2.19 56 1.25 32 .88 22 ... 1⁄2-3⁄4-1 1⁄2-3⁄4-1 1⁄2 2 8810 SDG 15.
Square D Company 8001 Highway 64 East Knightdale, NC 27545-9023 (919) 266-3671 UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Association. MOTOR LOGIC is a trademark of Square D Company. Spin Top, Square D and are registered trademarks of Square D Company. Catalog No. 8502CT9701 May 1998 © 1998 Square D All Rights Reserved.
