Marathon 3 HP Explosion Proof Motor, 3 phase, 3600 RPM, 230/460 V, 182TC Frame, EPFC - C303A

Catalog #:C303A
Part #:182TTGN4315
  • Frame Construction:56 Frame-Rolled Steel.143-256TC-Cast Iron “Blue Chip”
  • Thermal Protection:56 Frame-Auto Overload,143-256TC-T-Stats
  • Class/Group:56 Frame-Class I, Groups C & D,143-256TC-Class I, Group D
  • Temperature Code:56 Frame-Class II, Groups F & G,143-256TC-Class II, Groups F & G
  • Conduit Box:56 Frame-T3B;143-256TC-T3B
  • Service Factor:56 Frame-Shipped Loose;143-256TC-Installed
  • UL File:56 Frame-1.0 (unless otherwise noted);143-256TC-1.0 (unless otherwise noted)
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • UL File:56 Frame-1.0 (unless otherwise noted);143-256TC-1.0 (unless otherwise noted)
  • CSA File:56 Frame-E12044,LR47504;143-256TC-E12044,LR47504
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General Specifications

UPC: 722856022639 Weight: 175.00 LB
Packaged Length: 22.5 IN Packaged Width: 16.81 IN
Packaged Height: 14 IN

Nameplate Specifications

Output HP: 3 Hp Output KW: 2.2 kW
Frequency: 60 Hz Voltage: 230/460 V
Current: 7.4/3.7 A Speed: 3480 rpm
Service Factor: 1 Phase: 3
Efficiency: 85.5 % Power Factor: 88.5
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: J
Frame: 182TC Enclosure: Explosion Proof Fan cooled
Thermal Protection: Thermostats (N/C) Ambient Temperature: 40 °C
Drive End Bearing Size: 6207 Opp Drive End Bearing Size: 6206
UL: UL Listed; also, UL Certified for Canada CSA: N
CE: N IP Code: 54
Hazardous Location: EXP PROOF CL I GR D CL II GR F&G T3B

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Across The Line
Poles: 2 Rotation: Reversible
Resistance Main: 3.9 Ohms Mounting: Round
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: T Overall Length: 18.62 in
Frame Length: 10.00 in Shaft Diameter: 1.125 in
Shaft Extension: 2.62 in Assembly/Box Mounting: F1 Only

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Full Load 3.70 100.0 4.50 100.0 3,480 3.00
Locked-Rotor 30.00 811.0 11.80 262.0 0 50.0 3.00
Break-Down 19.50 527.0 16.00 356.0 2,770 76.0 3.00
No Load 1.20 32.0 0.00 0.0 3,600 3.00
Pull-Up 26.00 703.0 11.20 249.0 1,600 3.00
1/3 28.00 757.0 11.00 244.0 800 3.00
2/3 23.00 622.0 12.50 278.0 2,200 3.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 1.20 1.50 2.10 2.90 3.70 4.20 4.60
Rated Output (KW) 0.20 0.75 1.30 2.00 2.60 3.00 3.30
Efficiency (%) 0.0 76.5 84.0 85.5 85.5 85.5 84.0
Power Factor (%) 15.0 60.5 78.5 85.5 88.5 90.0 90.5
Speed (RPM) 3,600 3,570 3,545 3,515 3,480 3,460 3,445
Temp. Rise @ FL 0.0 0.0 0.0 0.0 40.0 55.0 0.0
Torque (ft-lbs) 0.00 1.10 2.20 3.40 4.50 5.20 5.70
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