AIM Manual
Motor Application » Three-Phase Motors (Page 31)
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Overload Protection (Continued)
Table 31 - 60 Hz 8" Motors
| MOTOR MODEL PREFIX | HP | KW | VOLTS | NEMA STARTER SIZE | HEATERS FOR OVERLOAD RELAYS | ADJUSTABLE RELAYS (NOTE 3) | ||
| FURNAS (NOTE 1) | G.E. (NOTE 2) | SET | MAX. | |||||
| 239660 | 40 | 30 | 380 | 3 | K78 | L866B | 68 | 73 |
| 239600 | 460 | 3 | K77 | L710B | 56 | 60 | ||
| 239610 | 575 | 3 | K73 | L520B | 45 | 48 | ||
| 239661 | 50 | 37 | 380 | 3 | K86 | L107C | 81 | 87 |
| 239601 | 460 | 3 | K78 | L866B | 68 | 73 | ||
| 239611 | 575 | 3 | K77 | L710B | 56 | 60 | ||
| 239662 | 60 | 45 | 380 | 4(1) | K89 | L126C | 101 | 108 |
| 239602 | 460 | 4(1) | K86 | L107C | 83 | 89 | ||
| 239612 | 575 | 4(1) | K78 | L787B | 64 | 69 | ||
| 239663 | 75 | 55 | 380 | 4 | K92 | L142C | 121 | 130 |
| 239603 | 460 | 4(1) | K89 | L126C | 100 | 107 | ||
| 239613 | 575 | 4(1) | K85 | L950C | 79 | 85 | ||
| 239664 | 100 | 75 | 380 | 5(1) | K28 | L100B | 168 | 181 |
| 239604 | 460 | 4 | K92 | L155C | 134 | 144 | ||
| 239614 | 575 | 4 | K90 | L142C | 108 | 116 | ||
| 239165 | 125 | 93 | 380 | 5 | K32 | L135B | 207 | 223 |
| 239105 | 460 | 5(1) | K29 | L111B | 176 | 189 | ||
| 239115 | 575 | 5(1) | K26 | L825A | 140 | 150 | ||
| 239166 | 150 | 110 | 380 | 5 | - | L147B | 248 | 267 |
| 239106 | 460 | 5(1) | K32 | L122B | 206 | 221 | ||
| 239116 | 575 | 5(1) | K28 | L100B | 169 | 182 | ||
| 239167 | 175 | 130 | 380 | 6 | K26 | - | 270 | 290 |
| 239107 | 460 | 5 | K33 | L147B | 233 | 250 | ||
| 239117 | 575 | 5 | K31 | L111B | 186 | 200 | ||
| 239168 | 200 | 150 | 380 | 6 | K27 | - | 316 | 340 |
| 239108 | 460 | 5 | K33 | L165B | 266 | 286 | ||
| 239118 | 575 | 5 | K32 | L135B | 213 | 229 | ||
Table 31A - 60 Hz 8" Hi-Temp 75°C Motors
| MOTOR MODEL PREFIX | HP | KW | VOLTS | NEMA STARTER SIZE | HEATERS FOR OVERLOAD RELAYS | ADJUSTABLE RELAYS (NOTE 3) | ||
| FURNAS (NOTE 1) | G.E. (NOTE 2) | SET | MAX. | |||||
| 279160 | 40 | 30 | 380 | 3 | K83 | L866B | 73 | 79 |
| 279100 | 460 | 3 | K77 | L710B | 60 | 65 | ||
| 279110 | 575 | 3 | K74 | L593B | 48 | 52 | ||
| 279161 | 50 | 37 | 380 | 3 | K87 | L107C | 89 | 95 |
| 279101 | 460 | 3 | K83 | L866B | 73 | 79 | ||
| 279111 | 575 | 3 | K77 | L710B | 59 | 63 | ||
| 279162 | 60 | 45 | 380 | 4(1) | K89 | L126C | 104 | 112 |
| 279102 | 460 | 4(1) | K87 | L107C | 86 | 92 | ||
| 279112 | 575 | 4(1) | K78 | L866B | 69 | 74 | ||
| 279163 | 75 | 56 | 380 | 4 | K92 | L155C | 131 | 141 |
| 279103 | 460 | 4(1) | K89 | L126C | 106 | 114 | ||
| 279113 | 575 | 4(1) | K87 | L950C | 86 | 92 | ||
| 279164 | 100 | 75 | 380 | 5(1) | K28 | L100B | 168 | 181 |
| 279104 | 460 | 5(1) | K26 | L825A | 139 | 149 | ||
| 279114 | 575 | 4 | K90 | L142C | 111 | 119 | ||
| 279165 | 125 | 93 | 380 | 5 | K32 | L135B | 207 | 223 |
| 279105 | 460 | 5(1) | K29 | L111B | 171 | 184 | ||
| 279115 | 575 | 5(1) | K26 | L825A | 138 | 148 | ||
| 279166 | 150 | 110 | 380 | 5 | - | L147B | 250 | 269 |
| 279106 | 460 | 5(1) | K32 | L122B | 206 | 222 | ||
| 279116 | 575 | 5(1) | K28 | L100B | 166 | 178 | ||
- Note: Other relay types from these and other manufacturers may or may not provide acceptable protection, and they should not be used without approval of Franklin Electric.
- Some approved types may only be available for part of the listed motor ratings. When relays are used with current transformers, relay setting is the specified amps divided by the transformer ratio.
Recommended Adjustable Overload Relays
| Advance Controls | MDR3 Overload |
| AEG Series | B17S, B27S, B27-2 |
| ABB Type | RVH 40, RVH65, RVP160, T25DU, T25CT, TA25DU |
| AGUT | MT03, R1K1, R1L0, R1L3, TE set Class 5 |
| Allen Bradley | Bulletin 193, SMP-Class 10 only |
| Automatic Switch Types | DQ, LR1-D, LR1-F, LR2 Class 10 |
| Benshaw | RSD6 (Class 10) Soft Start |
| Bharita C-H | MC 305 ANA 3 |
| Clipsal | 6CTR, 6MTR |
| Cutler-Hammer | C316F, C316P, C316S, C310-set at 6 sec max, Advantage Class10 |
| Fanal Types | K7 or K7D through K400 |
| Franklin Electric | Subtrol-Plus, SubMonitor, IPS, SSP, IPS-RV, and SPS-RV |
| Fuji Types | TR-OQ, TR-OQH, TR-2NQ, TR- 3NQ, TR-4NQ, TR-6NQ, RCa 3737-ICQ & ICQH |
| Furnas Types | US15 48AG & 48BG, 958L, ESP100-Class 10 only, 3RB10-Class 10 |
| General Electric | CR4G, CR7G, RT*1, RT*2, RTF3, RT*4, CR324X-Class 10 only |
| Kasuga | RU Set Operating Time Code = 10 & time setting 6 sec max |
| Klockner-Moeller Types | ZOO, Z1, Z4, PKZM1, PKZM3 & PKZ2 |
| Lovato | RC9, RC22, RC80, RF9, RF25 & RF95 |
| Matsushita | FKT-15N, 15GN, 15E, 15GE, FT-15N, FHT-15N |
| Mitsubishi | ET, TH-K12ABKP, TH-K20KF, TH-K20KP, TH-K20TAKF, TH-K60KF, TH-K60TAKF |
| Omron | K2CM Set Operating Timing Code = 10 & time setting 6 sec max, SE-KP24E time setting 6 sec max |
| Riken | PM1, PM3 |
| Samwha | EOCRS Set for Class 5, EOCR-ST, EOCR-SE, EOCR-AT time setting 6 sec max |
| Siemens Types | 3UA50, -52, -54, -55, -58, -59, -60, -61, -62, -66, -68, -70, 3VUI3, 3VE, 3UB (Class 5) |
| Sprecher and Schuh Types | CT, CT1, CTA 1, CT3K, CT3-12 thru CT3-42, KTA3, CEF1 & CET3 set at 6 sec max, CEP 7 Class 10, CT4, 6, & 7, CT3, KT7 |
| Square D/Telemecanique | Class 9065 Types TD, TE, TF, TG, TJ, TK, TR, TJE &TJF (Class 10), LR1-D, LR1-F, LR2 Class 10, Types 18A, 32A, SS-Class 10, SR-Class 10 and 63-A-LB Series. Integral 18,32,63, GV2-L, GV2-M, GV2-P, GV3-M (1.6-10 amp only) LR9D, SF Class 10, ST Class 10, LT6 (Class 5 or 10), LRD (Class 10), Motor Logic (Class10) |
| Toshiba Type | 2E RC820, set at 8 sec max. |
| WEG | RW2 |
| Westinghouse Types | FT13, FT23, FT33, FT43, K7D, K27D, K67D, Advantage (Class 10), MOR, IQ500 (Class 5) |
| Westmaster | OLWROO and OLWTOO suffix D thru P |
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