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Encoder Motor, 25 HP, 3 Ph, 60 Hz, 230/460 V, 1800 RPM, 284T Frame, TEFC

Part#: 284THFCD8028

Catalog#: Y569A

Model#: 284THFCD8028AA

Weight: 390 lb

List Price: $8,771.00

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Key Features

IP-55 Cast Iron, MaxGuard® inverter rated insulation system exceeds NEMA MG1 Part 31. No lead lengths restrictions on 460V systems or less (as noted)
BCP™ Bearing Current Protection with SGR Shaft Grounding Ring Inside Motor
2000:1 Constant torque operation from 0 to base speed on vector drive
Constant Horsepower operation up to 1.5 times base RPM
MAX GUARD® Class H insulation system
Normally closed thermostats (one per phase, Class F), Modifications and Kits are available
Double-shielded ball bearings
40°C Ambient 1.0SF inverter power
Provisions Only for Encoder
UL Recognized, CSA Certified, and CE Mark

Specifications

Phase	Phase: 3	Output HP	Output HP: 25 Hp
Output KW	Output KW: 18.7 kW	Voltage	Voltage: 230/460 V
Speed	Speed: 1770 rpm	Service Factor	Service Factor: 1
Frame	Frame: 284T	Enclosure	Enclosure: Totally Enclosed Fan Cooled
Thermal Protection	Thermal Protection: Thermostat	Efficiency	Efficiency: 92.7 %
Ambient Temperature	Ambient Temperature: 40 °C	Frequency	Frequency: 60 Hz
Current	Current: 57.0/28.5 A	Power Factor	Power Factor: 88.8
Duty	Duty: Continuous	Insulation Class	Insulation Class: H
Design Code	Design Code: INV	KVA Code	KVA Code: K
Drive End Bearing Size	Drive End Bearing Size: 6311	Opp Drive End Bearing Size	Opp Drive End Bearing Size: 6211
UL	UL: Recognized	CSA	CSA: Y
CE	CE: Y	IP Code	IP Code: 55
Number of Speeds	Number of Speeds: 1

Electrical Type	Electrical Type: Squirrel Cage Inverter Duty	Starting Method	Starting Method: Inverter Only
Poles	Poles: 4	Rotation	Rotation: Reversible
Resistance Main	Resistance Main: .393 Ohms	Mounting	Mounting: Rigid Base
Motor Orientation	Motor Orientation: Horizontal	Drive End Bearing	Drive End Bearing: Ball
Opp Drive End Bearing	Opp Drive End Bearing: Ball	Frame Material	Frame Material: Cast Iron
Shaft Type	Shaft Type: T	Shaft Diameter	Shaft Diameter: 1.875 in
Assembly/Box Mounting	Assembly/Box Mounting: F1/F2 CAPABLE	Inverter Load	Inverter Load: CONSTANT 2000:1

% of Rated Load	0%	25%	50%	75%	100%	115%	125%
% of Rated Load: Current (Amps)	0%: 8.87	25%: 11.09	50%: 15.87	75%: 21.80	100%: 28.44	115%: 32.73	125%: 35.73
% of Rated Load: Rated Output (KW)	0%: 0.43	25%: 5.15	50%: 9.99	75%: 14.98	100%: 20.12	115%: 23.29	125%: 25.45
% of Rated Load: Efficiency (%)	0%: 0.0	25%: 90.6	50%: 93.3	75%: 93.4	100%: 92.7	115%: 92.1	125%: 91.6
% of Rated Load: Power Factor (%)	0%: 6.0	25%: 58.3	50%: 79.0	75%: 86.2	100%: 88.8	115%: 89.3	125%: 89.4
% of Rated Load: Speed (RPM)	0%: 1,800	25%: 1,793	50%: 1,786	75%: 1,778	100%: 1,770	115%: 1,765	125%: 1,761
% of Rated Load: Temp. Rise @ FL	0%: 0.0	25%: 0.0	50%: 0.0	75%: 0.0	100%: 55.0	115%: 0.0	125%: 0.0
% of Rated Load: Torque (ft-lbs)	0%: 0.00	25%: 18.31	50%: 36.77	75%: 55.39	100%: 74.20	115%: 85.59	125%: 93.23

Curvepoint	Current (Amps)	Current (%)	Torque (ft-lbs)	Torque (%)	Speed (RPM)	Rated Output (KW)	Power Factor (%)	Rated Output (Hp)
Curvepoint: Break-Down	Current (Amps): 110.50	Current (%): 0.0	Torque (ft-lbs): 210.00	Torque (%): 280.0	Speed (RPM): 1,614	Rated Output (KW): 62.35	Power Factor (%): 70.8	Rated Output (Hp): 25.00
Curvepoint: Locked-Rotor	Current (Amps): 194.00	Current (%): 0.0	Torque (ft-lbs): 86.12	Torque (%): 116.0	Speed (RPM): 0	Rated Output (KW): 48.89	Power Factor (%): 31.6	Rated Output (Hp): 25.00
Curvepoint: Full Load	Current (Amps): 28.40	Current (%): 0.0	Torque (ft-lbs): 74.20	Torque (%): 100.0	Speed (RPM): 1,770	Rated Output (KW): 20.11	Power Factor (%): 88.8	Rated Output (Hp): 25.00

Efficiency

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