Marathon C501 20 HP, 1800 RPM three-phase explosion proof motor with a 256TC NEMA frame and Explosion Proof Fan Cooled (EPFC) enclosure. Operates on 230/460V at 60 Hz. Designed for hazardous locations requiring UL listed Class I Division 1 Groups C and D or Class II Groups F and G protection.

Ambient temperature (°C)

50

Assembly/box mounting

F1 only

CE

N

Country of Origin

Mexico

CSA

Y

Current

48.5/24.2 & 44.5/22.3 A

Design code

B

Drive end bearing

Ball

Drive end bearing size

6309

Duty

Continuous

Efficiency

93 & 92.7 %

Electrical type

Squirrel Cage Inverter Rated

Enclosure

Explosion Proof Fan cooled

Frame

256TC

Frame Material

Cast iron

Frequency

60 & 50 Hz

Hazardous Location

DIV 1 EXP PROOF CL I GR CD CL II GR FG T3C

Insulation class

F

Inverter Load

1

IP code

54

KVA code

G

Motor orientation

Horizontal

Mounting

Rigid base

Number of speeds

1

Opp drive end bearing

Ball

Opp drive end bearing size

6210

Output HP

20 & 15 Hp

Output KW

14.9 & 11.2 kW

Packaged height

14.00 IN

Packaged length

30.19 IN

Packaged width

16.50 IN

Phase

3

Poles

4

Power factor

83.5

Resistance main

.513 Ohms

Rotation

Reversible

Service factor

1.0 & 1.0

Shaft diameter

1.625 in

Shaft type

T

Speed

1768 & 1472 rpm

Starting method

Part Wdg Start Or Inverter

Thermal protection

Thermostat

UL

UL Listed And CSA Certified

Voltage

230/460 & 190/380 V