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Encoder Motor, 20 HP, 3 Ph, 60 Hz, 230/460 V, 1800 RPM, 256TC Frame, TENV

Part#: 256THTCD8038

Catalog#: Y510A

Model#: 256THTCD8038BA

Weight: 340 lb

List Price: $9,981.00

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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 2 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: 20 Hp
Output KW	Output KW: 14.9 kW	Voltage	Voltage: 230/460 V
Speed	Speed: 1778 rpm	Service Factor	Service Factor: 1
Frame	Frame: 256TC	Enclosure	Enclosure: Totally Enclosed Non Ventilated
Thermal Protection	Thermal Protection: Thermostat	Efficiency	Efficiency: 93.6 %
Ambient Temperature	Ambient Temperature: 40 °C	Frequency	Frequency: 60 Hz
Current	Current: 49.0/24.5 A	Power Factor	Power Factor: 84
Duty	Duty: Continuous	Insulation Class	Insulation Class: H
Design Code	Design Code: INV	KVA Code	KVA Code: M
Drive End Bearing Size	Drive End Bearing Size: 6309	Opp Drive End Bearing Size	Opp Drive End Bearing Size: 6209
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: .333 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: 1.625 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%: 11.00	25%: 12.00	50%: 15.00	75%: 19.00	100%: 24.50	115%: 27.00	125%: 29.00
% of Rated Load: Rated Output (KW)	0%: 0.50	25%: 4.25	50%: 8.05	75%: 12.00	100%: 15.98	115%: 18.40	125%: 20.00
% of Rated Load: Efficiency (%)	0%: 0.0	25%: 87.8	50%: 92.7	75%: 93.4	100%: 93.6	115%: 93.0	125%: 93.0
% of Rated Load: Power Factor (%)	0%: 5.7	25%: 44.5	50%: 67.4	75%: 79.3	100%: 84.0	115%: 85.5	125%: 86.6
% of Rated Load: Speed (RPM)	0%: 1,800	25%: 1,795	50%: 1,790	75%: 1,785	100%: 1,778	115%: 1,776	125%: 1,774
% of Rated Load: Temp. Rise @ FL	0%: 0.0	25%: 0.0	50%: 0.0	75%: 0.0	100%: 105.0	115%: 0.0	125%: 0.0
% of Rated Load: Torque (ft-lbs)	0%: 0.00	25%: 14.64	50%: 29.35	75%: 44.20	100%: 59.00	115%: 68.00	125%: 74.00

Curvepoint	Current (Amps)	Current (%)	Torque (ft-lbs)	Torque (%)	Speed (RPM)	Rated Output (KW)	Power Factor (%)	Rated Output (Hp)
Curvepoint: Break-Down	Current (Amps): 150.00	Current (%): 612.0	Torque (ft-lbs): 260.00	Torque (%): 440.0	Speed (RPM): 1,600	Rated Output (KW): 85.30	Power Factor (%): 73.0	Rated Output (Hp): 20.00
Curvepoint: Full Load	Current (Amps): 24.50	Current (%): 100.0	Torque (ft-lbs): 59.03	Torque (%): 100.0	Speed (RPM): 1,778	Rated Output (KW): 15.98	Power Factor (%): 80.0	Rated Output (Hp): 20.00
Curvepoint: Locked-Rotor	Current (Amps): 260.00	Current (%): 1,000.0	Torque (ft-lbs): 180.00	Torque (%): 305.0	Speed (RPM): 0	Rated Output (KW): 84.50	Power Factor (%): 40.0	Rated Output (Hp): 20.00

Efficiency

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