High starting torque
For applications on commercial and industrial pumps (JM/JP - mechanical seal/gasket)
Suitable for domestic and rural power supply conditions
Standard |
NEMA MG-1 |
Frequency |
60 Hz |
Voltage |
208-230/460 V |
Number of poles |
2 |
Degree of Protection |
IP55 |
Synchronous speed |
3600 rpm |
Output rating |
0.5 HP |
Mounting |
F-1 |
Flange |
C |
Terminal box¹ |
Left position |
Enclosure |
IC411 - TEFC |
Electric Motors
Frame |
143/5JM |
Output |
0.5 HP (0.37 kW) |
Number of Poles |
2 |
Frequency |
60 Hz |
Rated speed |
3575 rpm |
Slip |
0.69 % |
Rated voltage |
208-230/460 V |
Rated current |
1.90-2.93/1.47 A |
L. R. Amperes |
44.3-68.3/34.3 A |
LRC |
23.3x(Code T) |
No load current |
1.21-1.40/0.700 A |
Rated torque |
0.734 ft.lb |
Locked rotor torque |
465 % |
Breakdown torque |
545 % |
Locked rotor time |
12s (cold) 7s (hot) |
Moment of inertia (J) |
0.0522 sq.ft.lb |
Insulation Class |
F |
Service factor |
1.15 |
Temperature rise |
80 K |
Duty Cycle |
Cont.(S1) |
Starting Method |
Direct On Line |
Ambient temperature |
-20°C to +40°C |
Altitude |
1000 m.a.s.l. |
Degree of Protection |
IP55 |
Enclosure |
IC411 - TEFC |
Mounting |
F-1 |
Rotation¹ |
Both (CW and CCW) |
Noise level² |
69.0 dB(A) |
Approx. weight³ |
50.7 lb |
Efficiency
50% |
36.5 |
75% |
48.9 |
100% |
57.7 |
Power factor
50% |
0.96 |
75% |
0.95 |
100% |
0.95 |
Features
Frame Material |
Cast Iron |
Impregnation Method |
Dip and Bake Polyester |
Main terminal box hole |
NPT 3/4" |
Terminal Block |
Without |
Shaft Locking Device |
Without |
Drain |
Rubber, automatic |
Shaft Material |
SAE 1040/45 Carbon Steel |
Painting |
RAL 5009 207A (ISO 12944 - C2) |
Grounding Lugs |
Single |
Fan Cover material |
Steel |
Tropicalized Painting |
Without |
Fan material |
Plastic |
Bearing cap |
Yes- Bearing Cap |
Drip Cover |
Without |
Overload protector (phenolic) |
Without overload protector |
Features
Frame Material |
Cast Iron |
Impregnation Method |
Dip and Bake Polyester |
Main terminal box hole |
NPT 3/4" |
Terminal Block |
Without |
Shaft Locking Device |
Without |
Drain |
Rubber, automatic |
Shaft Material |
SAE 1040/45 Carbon Steel |
Painting |
RAL 5009 207A (ISO 12944 - C2) |
Grounding Lugs |
Single |
Fan Cover material |
Steel |
Tropicalized Painting |
Without |
Fan material |
Plastic |
Bearing cap |
Yes- Bearing Cap |
Drip Cover |
Without |
Overload protector (phenolic) |
Without overload protector |
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