- Three Phase
- Drip-Proof
- Rigid Base
General Specifications:
Designed for continuous duty service on close-coupled pumps using NEMA JM mounting provisions. All motors have a rigid mounting base and NEMA JM pump shaft.
| Items |
 121850 Leeson Three Phase Drip-Proof Rigid Base JM Pump Motors |
121851 Leeson Three Phase Drip-Proof Rigid Base JM Pump Motors |
121853 Leeson Three Phase Drip-Proof Rigid Base JM Pump Motors |
121852 Leeson Three Phase Drip-Proof Rigid Base JM Pump Motors |
121854 Leeson Three Phase Drip-Proof Rigid Base JM Pump Motors |
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| Base | Rigid Base | |||||||||
| Enclosure Type | Drip-Proof | |||||||||
| Phase | Three | |||||||||
| HP | 1 | 1 1/2 | 2 | 2 | 3 | |||||
| RPM 60 Hz | 1740 | 1740 | 3450 | 1740 | 3450 | |||||
| Voltage | 208 V230 V460 V | |||||||||
| FL Amps 230 V | 3.6 | 4.8 | 6.2 | 6.2 | 8.4 | |||||
| % FL Eff. | 77.0 | 80.0 | 80.0 | 81.5 | 84.0 | |||||
| NEMA Frame | 143JM | 145JM | 145JM | 145JM | 145JM | |||||
| Disc. Sym. | B | |||||||||
| C Dimension | 13.12 in | 13.12 in | 13.12 in | 14.12 in | 13.62 in | |||||
| Approx. Weight | 29 lbs | 32 lbs | 30 lbs | 37 lbs | 35 lbs | |||||
| NEMA Service Factor | 1.15 | |||||||||
| Frame Construction | ||||||||||
| Drip Cover Kit Ref. | B | |||||||||
| Rating | Inverter Rated | |||||||||
| Mechanical Features |
Open drip-proof construction, cooling air exhausts at the shaft end for maximum cooling. Oversized locked bearing on shaft end limits axial shaft movement. Drip covers are available as accessory kits for 143-5JM and 182- 4JM motors for the correct kit. Some 182-4JM frame motors have enclosed endshields as standard with frame vents meeting the 12ยบ drip-proof requirement. No drip cover is needed, or shown in the table, for these motors. |
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| Electrical Features | High efficiency copper windings with NEMA 1.15 service factors. UL and CSA recognized designs. Single phase designs are capacitor start/induction run unless indicated otherwise. | |||||||||
| Manufacturer |
 Leeson |
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