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MOD-SQUAD 232 L18 Motor Protection MOD-SQUAD STOCK MOTOR MODIFICATION PROGRAM #L18a Thermostats on the winding. Install one or more thermostats in the windings of NEMA frame AC motors on the brush plate of DC motors or on the inside of frame on Sub-FHP DC motors. These are pilot or signal devices only, to be used in series with a motor controller or starter to remove power from the motor. Red color leads are brought into the conduit box. Specify normally open or closed contacts. Normally closed thermostats connected in series. Thermostats cannot be installed in explosionproof motors. #L18b For a motor equipped with a thermal overload, exchange a manual or automatic reset thermal overload to the opposite style. Delivery is dependent upon availability of the thermal overload. LEESON Only Note: Automatic thermal overloads return power to the motor automatically after cooling-off. Automatic thermal overloads should not be used in installations where a sudden restart could cause injury. #L18c Thermistors on the winding. As standard, three (3) thermistors are furnished, one per phase. As the critical temperature of the motor’s winding is reached, the resistance of the thermistor changes radically, causing operation of a control relay. Not available on washdown duty motors or medium voltage motors. Note: Thermostat and Thermistor Descriptions: Thermostats are made of two or three different metal strips that each expand at different rates when heated. They are sandwiched together to make a laminated strip, with a set of electrical contacts at one end securely mounted to a platform. When the strip is heated it warps and the contacts open as a threshold temperature is exceeded. Thermostats are reliable, noise immune and easily configured into control schemes. Typically, inverter-duty motors have thermostats as standard equipment. L19 Fungus Proofing and Tropicalization #L19a Special treatment of the motor’s windings and mechanical parts to resist tropical environments. Not available on brakemotors, washguard duty motors and explosion proof motors. ** AC or DC Motors L20 Weatherproofing – Three Phase, Totally Enclosed Motors* #L20a Treatment of mechanical and electrical components of LEESON steel frame totally enclosed motors to resist weather in application outside or in high-moisture conditions. NOTE: LEESON 150 and 170 series cast iron motors are weatherproofed as standard. LEESON WASHGUARD motors are also well-suited for outside and high-moisture applications. Not available on brakemotors or explosion proof motors. ** AC or DC Motors L21 Marine Service (IEEE 45) Motors – Three Phase, Totally Enclosed - LEESON Only NEMA Frame #L21a Treatment of mechanical and electrical components for application below deck aboard ships. Meets IEEE 45 marine specifications. NEMA Frame Includes die cast conduit box with tapped lead hole and nameplate 56-215T** stamped 50°C ambient and marked IEEE 45. Standard LEESON 254T-365T blue epoxy paint will be applied unless otherwise specified. Not 404T-405T available on brakemotors and subject to engineering approval. Not 444T-449T available in 42 and 48 frame sizes for no kit is available to change conduit box to have a tapped hole. ** AC or DC Motors Specifications are subject to change without notice Two Days No. of Type NEMA Frame Catalog Number Devices Single Phase All L18AS40210 1 Three Phase 42-215T L18AT40210 2 Three Phase 254T-365T L18AT250360 2 Three Phase 404T-449T L18AT400440 2 Direct Current 42-56 L18AD4056 1 Catalog Number 48-56 L18B4056 143T-145T 182T-184T 213T-215T NEMA Frame 42-215T** 254T-365T 404T-449T L18B140 L18B180 L18B210 No. of Type NEMA Frame Catalog Number Devices Three Phase 42-215T L18CT40210 3 Three Phase 254T-365T L18CT250360 3 Three Phase 404T-449T L18CT400440 3 Thermistors are conductive ceramic materials, whose resistance remains relatively constant over a broad temperature range, then changes abruptly at a design threshold point, creating essentially a solid-state thermal switch. Attached control modules register this abrupt resistance change and produce an amplified output signal, usually a contact closure or fault trip annunciation. Thermistors are more accurate and faster responding than thermostats. Two Days Catalog Number L19A40210 L19A250360 L19A400440 Five Days NEMA Frame Catalog Number 42-215T** L20A40210 * For single phase weatherproofed motors, see WASHGUARD motors on pages 28 and 35. Five Days Catalog Number L21A40210 L21A250360 L21A400 L21A440
MOD-SQUAD STOCK MOTOR MODIFICATION PROGRAM L22 Shaft Modifications #L22a Drill and tap one hole in either end of motor’s shaft or mill a flat on the drive end shaft extension. Provide details of hole or flat with the order. List price is per modification. For example, a motor modified by adding a tapped hole and flat would be priced by adding the list price twice. 3 inches maximum depth hole #L22b TEFC to air-over service. Convert a motor from totally enclosed, fan cooled construction to totally enclosed, air-over service by removing fan cover and fan and cutting off the fan end shaft. The modified motor must be mounted in the air stream of the driven fan for cooling purposes. L23 Tachometer Mounting Provisions – DC Motors - LEESON Only #L23a Add a tachometer mounting kit to NEMA frame size Direct Current motors. See page 81 for availability of tachometer mounting kits. Does not include tachometer. For TEFC motors only. NEMA Frame S56 SS56 Catalog Number L23AS56 L23ASS56 56/145T L23A56140 Five Days NEMA Frame Catalog Number 42-145T L22A40140 182T-184T L22A180 213T-215T L22A210 250T-280T L22A250280 NEMA Frame Catalog Number 42-145T L22B40140 182T-184T L22B180 213T-215T L22B210 Tach Kit Adaptor Five Days L24 CE Marking* #L24 Modify motor to comply with the nameplate designation, lead markings and connection diagrams required by the IEC34 motor specification. Modification includes a nameplate with the CE logo or a separate CE decal and a CE Declaration of Conformity document. Not available on DC motors below 75 V.D.C. LEESON Only Catalog Number L24 Five Days Con f o r m i t e Europeene #L24b CE Marking Kit - Includes new nameplate with data in IEC34 format, lead markers for IEC lead designations, a connection diagram, and a CE Declaration of Conformity document. The nameplate will have the CE logo, or a CE decal will be provided. LEESON Only Catalog Number L24B * CE Marking is typically required for motors being shipped to Europe where 50Hz power is standard. For this reason, CE Marking includes adding 50Hz data to the motor nameplate. Not all motors can be used with 50Hz power – especially single-phase motors with centrifugal switches. Contact LEESON to verify acceptability for CE Marking. #L24c Modification includes larger than standard Steel terminal box. CS models normally have a cast iron box. Blower motor on TEBC CTAC models, 284T frame and larger, is not CE compliant. Useable on 380 to 575V motors. Price includes terminal strip suitable for six connections and grounding lug. CE decal to be provided. CE Declaration of Conformity are available upon request. Lincoln Only Contact your local sales office for Lincoln CE kits. Explosion proof motors cannot be modified to meet CE. NEMA Frame 143T-145T 182T-184T 213T-215T 254T-256T 284T-286T 324T-326T 364T-365T 404T-405T 444T-445T 447T-449T Catalog Number L24C140 L24C180 L24C210 L24C250 L24C280 L24C320 L24C360 L24C400 L24C440 L24C447449 MOD-SQUAD Specifications are subject to change without notice 233
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New Products From: Boat Hoist Duty
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g Motors for General Purpose or DC
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6 E.I.S.A. Facts: E.I.S.A. is an ac
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THOUSANDS OF STOCK POWER TRANSMISSI
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OFFERINGS WITH CUSTOMERS IN MIND LE
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Application Information LEESON Elec
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Variable Speed Operation Guidelines
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Variable Speed Operation CONSTANT H
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AC MOTORS CAST IRON • THREE PHASE
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AC MOTORS THREE PHASE MOTORS - GENE
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AC MOTORS THREE PHASE MOTORS - GENE
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AC MOTORS C FACE MOTORS • THREE P
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AC MOTORS C FACE MOTORS • THREE P
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WATTSAVERe ® PREMIUM EFFICIENCY MO
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AC MOTORS Frames 48 - 256T ODP 208,
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AC MOTORS FOOT MOUNT (cont’d) ODP
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AC MOTORS ODP 208, 230/460 & 460 VO
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AC MOTORS ODP 208, 230/460 & 460 VO
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AC MOTORS FOOT MOUNT TEFC 208, 230/
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AC MOTORS FOOT MOUNT (cont’d) TEF
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AC MOTORS C-FACE WITH FEET TEFC 208
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AC MOTORS TEFC 208, 230/460 and 460
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AC MOTORS TEFC 208, 230/460 and 460
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AC MOTORS TEFC 15 TO 60 HZ CONSTANT
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AC MOTORS TOTALLY ENCLOSED • 0 TO
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AC MOTORS TOTALLY ENCLOSED • 0 TO
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AC MOTORS severe duty wattsaver plu
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SINGLE PHASE MOTORS RIGID BASE •
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AC MOTORS C FACE MOTORS • SINGLE
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AC MOTORS ODP GENERAL PURPOSE 115,
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AC MOTORS ODP GENERAL PURPOSE OVERL
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AC MOTORS C-FACE WITH FEET TEFC GEN
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AC MOTORS AGRICULTURAL MOTORS GENER
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AC MOTORS AGRICULTURAL MOTORS SINGL
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AC MOTORS POULTRY MOTORS SINGLE AND
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AC MOTORS TEFC FARM DUTY/AGRICULTUR
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AC MOTORS Features: • Totally Enc
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AC MOTORS CROP DRYER 230 VOLTS •
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WASHGUARD MOTORS WASHDOWN SERVICE A
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WASHGUARD MOTORS WHITE EPOXY • TH
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AC MOTORS WASHGUARD II MOTORS STAIN
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AC MOTORS WASHGUARD ALL-STAINLESS M
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AC MOTORS WASHGUARD ALL-STAINLESS M
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WASHGUARD ALL-STAINLESS MOTORS ALL-
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AC MOTORS HARSH ENVIRONMENTS WASH-T
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AC MOTORS C-FACE FOOTLESS HARSH ENV
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AC MOTORS FOOT MOUNT (cont’d) ODP
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OTHER GENERAL PURPOSE MOTORS RIGID
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AC MOTORS RESILIENT BASE MOTORS •
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COMPRESSOR DUTY MOTORS COMPRESSOR,
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INSTANT REVERSING MOTORS AC MOTORS
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AC MOTORS AERATION FAN MOTORS Total
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AC MOTORS GE Commercial Motors By R
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CUSTOM MULTI-SPEED LOW-SPEED AND MO
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BRAKEMOTORS SINGLE & THREE PHASE AC
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BRAKEKITS AC MOTORS LEESON BRAKEKIT
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AC MOTORS explosion-proof for hazar
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AC MOTORS explosion-proof for hazar
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AC MOTORS JET PUMP MOTORS General S
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AC MOTORS JP PUMP MOTORS JP PUMP MO
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AC MOTORS JM PUMP MOTORS General Sp
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AC MOTORS 50 HZ • THREE PHASE Gen
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AC MOTORS ODP & TEFC 200/400 VOLT M
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AC MOTORS TEFC • FOOT MOUNT ODP &
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AC MOTORS ODP • 575 VOLT MOTORS 3
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AC MOTORS C-FACE WITH FEET ODP •
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AC MOTORS C-FACE WITH FEET (cont’
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AC METRIC (IEC) MOTORS THREE PHASE
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AC METRIC (IEC) MOTORS THREE PHASE
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DC MOTORS DC MOTORS NEMA DC MOTORS
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DC MOTORS EXPLOSION-PROOF AND WASHG
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DC MOTORS METRIC (IEC) FRAME • SC
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DC MOTORS NEMA FRAME • LOW VOLTAG
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PREMIUM DC MOTORS NEMA & METRIC (IE
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QUICK REFERENCE Stock Sub-FHP Gearm
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SUB-FHP DC GEARMOTORS PARALLEL SHAF
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SUB-FHP DC GEARMOTORS OFF-SET SHAFT
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SUB-FHP DC GEARMOTORS PARALLEL SHAF
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SERIES 12 SUB-FHP RIGHT ANGLE DC GE
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IP55 WASHGUARD GEARMOTORS PARALLEL
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SUB-FHP AC GEARMOTORS PARALLEL SHAF
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SUB-FHP AC GEARMOTORS PARALLEL SHAF
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SUB-FHP AC GEARMOTORS RIGHT-ANGLE S
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SUB-FHP AC GEARMOTORS INVERTER RATE
Page 180 and 181: AC MOTORS TOTALLY ENCLOSED AUTOMOTI
Page 188 and 189: AC MOTORS HYDRAULIC ELEVATOR PUMP M
Page 190 and 191: AC MOTORS VVVF (VARIABLE VOLTAGE VA
Page 192 and 193: AC MOTORS VVVF (VARIABLE VOLTAGE VA
Page 194 and 195: AC MOTORS TEFC • MEDIUM VOLTAGE 2
Page 196 and 197: AC ADJUSTABLE SPEED DRIVES MICRO SE
Page 198 and 199: DRIVES DYNAMIC BRAKING COMPONENTS F
Page 200 and 201: AC ADJUSTABLE SPEED DRIVES SM PLUS
Page 202 and 203: DRIVES AC ADJUSTABLE SPEED DRIVES S
Page 204 and 205: AC ADJUSTABLE SPEED DRIVES SM VECTO
Page 206 and 207: AC ADJUSTABLE SPEED DRIVES SUB-MICR
Page 208 and 209: NEMA 4/12 NEMA 1 CHASSIS NEMA 4X TO
Page 210 and 211: FIRE PUMP MOTORS ODP Features: •
Page 212 and 213: FIRE PUMP MOTORS TEFC • FOOT MOUN
Page 214 and 215: ACCESSORIES NEMA D FLANGE KITS STEE
Page 216 and 217: MOTOR ACCESSORIES FIELD INSTALLED A
Page 218 and 219: C-FACE FIELD CONVERSION KITS FOR UL
Page 220 and 221: CE FIELD CONVERSION KITS 3-PHASE MO
Page 222 and 223: MOD-SQUAD STOCK MOTOR MODIFICATION
Page 234 and 235: CROSS REFERENCE CROSS REFERENCE EXC
Page 236 and 237: CROSS REFERENCE BALDOR-TO-LEESON CR
Page 238 and 239: CROSS REFERENCE BALDOR-TO-LEESON CR
Page 240 and 241: CROSS REFERENCE MARATHON-TO-LEESON
Page 242 and 243: CROSS REFERENCE MARATHON-TO-LEESON
Page 244 and 245: CROSS REFERENCE MAGNETEK/A.O. SMITH
Page 246 and 247: CROSS REFERENCE MAGNETEK/A.O. SMITH
Page 248 and 249: CROSS REFERENCE W.W. GRAINGER/DAYTO
Page 250 and 251: CROSS REFERENCE W.W. GRAINGER/DAYTO
Page 252 and 253: DC SUB-FHP GEARMOTOR CROSS REFERENC
Page 254 and 255: LEESON INDEX LEESON CATALOG NUMBER
Page 262 and 263: LINCOLN INDEX LINCOLN CATALOG NUMBE
Page 268 and 269: NOTES & SYMBOLS/HOW TO ORDER NOTES
Page 270 and 271: model numbers defined G Electrical
Page 272 and 273: TECHNICAL INFORMATION INFORMATION N
Page 274 and 275: DIMENSIONS AC METRIC (IEC) MOTORS B
Page 276 and 277: DIMENSIONS NEMA EXPLOSION-PROOF •
Page 278 and 279: DIMENSIONS NEMA CAST IRON FRAME •
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DIMENSIONS NEMA STEEL FRAME MOTORS
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DIMENSIONS 5000 FRAME MOTORS C AB N
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TERMS AND CONDITIONS TERMS & COND.
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MECANICAL WARNINGS AND CAUTIONS IMP
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Power Transmission solutions for ev
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800 Series Gear Reducers Built For
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HIGH EFFICIENCY GEAR REDUCERS Grove
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WASHGUARD GEAR REDUCERS & GEAR+MOTO
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Pulley’s & Sheaves INDUSTRY STAND
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NOTES 300 Specifications are subjec
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How to achieve the greatest energy
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