Marathon Electric Hazardous Duty Explosion Proof Catalog Page
Applications: For use on fans, blowers, pumps, compressors, machine tools, and other equipment
installed in hazardous environments as defined by the motor’s explosion proof class and
group rating. Consult the National Electrical Code and your local regulations for the
proper selection of motors in hazardous conditions.
Features: ✪ Meets NEMA Premium
®
efficiencies
• 10:1 Variable torque, see Inverter Duty column for constant torque
• MAX GUARD
®
Class F insulation
• 1.15 Service Factor on sinewave or 1.0 Service Factor on IBGT power
• Normally closed thermostats (must be connected to control circuit)
• Meets temperature code T3B
• All cast iron construction
• Shaft slinger
• Internal and external surfaces treated with epoxy paint
• Extended grease tubes
• Nameplated 60/50 Hz, 190/380 Volts, at next lower HP where
footnoted
• See modification section for addition of C-Face Kits (254T-445T)
• Contact Marathon Electric for F2 mounting
• Ball Bearings, except where noted
• UL Listed File No. E12044
• CSA Certified File Nos. LR21839 and LR47504
• Three year warranty
• Contact Marathon Electric for lower HP ratings
SB300 – Prices and Specifications are subject to change without notice.
85
EXPLOSION PROOF
Footnotes:
NP Does not meet NEMA Premium efficiency level
2:1 Suitable for 2:1 Constant Torque operation; consult “R164 Rework” table for fan
change pricing to upgrade to 10:1 CT
20 Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
87 10:1 Constant torque available as build-up, refer to marketing for price and
availability
Hazardous Duty™ Explosion Proof, Three Phase
Blue Chip XRI
®
NEMA Premium®Severe Duty
Class I Group C & D, Class II Groups F & G, Rigid Base
✯ Stock Model
Blue shaded areas are Cast Iron Frames
7 1/2 1200 230/460 254T E500 254TTGN6576 10:1 $2,101 E7 91.0 19.8/9.9 345 23.52 20
10 1200 230/460 256T E501 256TTGN6576 10:1 $2,534 E7 91.0 26.2/13.1 360 25.27 20
15 3600 230/460 254T E502 254TTGN6507 10:1 $2,054 E7 91.7 35.0/17.5 253 23.52 20
1800 230/460 254T E503✯ 254TTGN6531 10:1 $2,042 E7 92.4 37.6/18.8 385 23.52 20
1200 230/460 284T E504 284TTGN6576 10:1 $3,520 E7 91.7 41.0/20.5 536 26.34 20
20 3600 230/460 256T E505
------
10:1 $2,588 E7 92.4 46.8/23.4 338 24.62
1800 230/460 256T E506✯ 256TTGN6531 10:1 $2,417 E7 93.0 48.2/24.1 328 25.27 20
1200 230/460 286T E507
------
10:1 $4,105 E7 91.7 53.6/26.8 496 27.69
25 3600 230/460 284TS E546 284TSTGN6503 10:1 $3,341 E7 93.6 56.2/28.1 412 24.97 20
1800 230/460 284T E547✯ 284TTGN6533 10:1 $3,075 E7 93.6 62.0/31.0 512 26.34 20
1200 230/460 324T E562
------
10:1 $5,184 E7 93.0 65.0/32.5 643 28.75
30 3600 230/460 286TS E563 286TSTGN6501 10:1 $3,601 E7 93.6 67.6/33.8 487 26.47 20
1800 230/460 286T E564✯ 286TTGN6537 10:1 $3,565 E7 94.1 73.0/36.5 590 27.84 20
1200 230/460 326T E565 326TTGS6578 10:1 $6,068 E7 93.0 77.0/38.5 675 30.37 87
40 3600 230/460 324TS E566 324TSTGS6501 10:1 $4,847 E7 93.6 94.0/47.0 734 28.87 20
1800 230/460 324T E567✯ 324TTGS6529 10:1@ $4,745 E7 94.1 97.0/48.5 700 28.87 20
1200 230/460 364T E568 364TTGS6588 10:1 $7,522 E7 93.6 100/50.0 1046 31.50 NP
50 3600 230/460 326TS E569 326TSTGS6501 10:1@ $6,146 E7 93.6 118/59.0 672 30.37 20,87
1800 230/460 326T E570✯ 326TTGS6532 10:1@ $5,778 E7 94.5 120/60.0 700 30.37 20
1200 230/460 365T E571 365TTGS16577 10:1@ $8,545 E7 94.5 123/61.5 1039 32.50 87
60 3600 230/460 364TS E572 364TSTGS6506 10:1@ $8,928 E7 94.5 134/67.0 1033 29.38 87
1800 230/460 364T E573✯ 364TTGS6542 10:1 $8,395 E7 94.5 138/69.0 1058 31.50
1200 230/460 404T E574 404TTGS6588 10:1 $10,671 E7 94.5 144/72.0 1295 35.62
75 3600 230/460 365TS E575 365TSTGS16503 10:1@ $10,346 E7 94.1 168/84.0 1097 30.38 87
1800 230/460 365T E576✯ 365TTGS6547 10:1@ $9,859 E7 94.5 172/86.0 1133 32.50 2:1,20
1200 230/460 405T E577 405TTGS6589 10:1@ $12,426 E7 94.5 180/90.0 1388 37.12 87
HP RPM VOLTS FRAME CAT. MODEL CT SPEED LIST MULT. NOM. F.L. “C” FOOT
NO. NO. RANGE PRICE SYMB. EFF. AMPS DIM. NOTES
Catalog numbers (Cat No.) highlighted in bold blue have efficiency levels that
meet or exceed U.S. EPAct and/or NRCan Canadian standards.
XRI
®
ENERGY
EFFICIENT
MOTORS
@ Requires larger fan
IP54
APPROX.
WGHT.
LBS.
Continued on next page.
SB300 – Prices and Specifications are subject to change without notice.
86
EXPLOSION PROOF
Footnotes:
RB Roller Bearing on shaft end for belted loads only
2:1 Suitable for 2:1 Constant Torque operation; consult “R164 Rework” table for fan change pricing to upgrade to 10:1 CT
20 Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
87 10:1 Constant torque available as build-up, refer to marketing for price and availability
100 3600 230/460 405TS E578 405TSTGS6503 10:1 $13,996 E7 94.5 216/108 1349 34.12 87
1800 230/460 405T E594✯ 405TTGS6548 10:1 $12,701 E7 95.0 226/113 1479 37.12 20
1200 230/460 444T E580 444TTGS6588 10:1@ $17,067 E7 95.0 238/119 1813 41.25 20,87
125 3600 460 444TS E581
------
10:1@ $19,320 E7 94.5 136 1765 37.50 20,87
1800 460 444T E582 444TTGS6539 10:1@ $16,403 E7 95.4 141 1795 41.25 2:1,20
1200 460 445T E583 445TTGS6597 10:1@ $20,412 E7 95.0 155 2016 43.25 87
150 3600 460 445TS E584
------
10:1 $21,586 E7 95.8 165 2010 39.50 87
1800 460 445T E585 445TTGS6542 10:1 $19,391 E7 95.4 168 1990 43.25 20
1200 460 445T E586
------
10:1@ $22,212 E7 95.8 181 2500 43.19 RB
200 3600 460 445TS E587
------
10:1@ $26,340 E7 95.8 222 2300 39.44 87
1800 460 445T E588 445TTGN6538 10:1@ $21,983 E7 95.8 225 2500 43.19 20
1200 460 449T E589
------
10:1 $28,632 E7 95.8 240 2950 51.69 RB,87
250 3600 460 449TS E590
------
10:1@ $31,840 E7 96.5 274 2650 47.94 87
1800 460 449T E591
------
10:1 $26,969 E7 96.5 285 2850 51.69 RB,87
300 1800 460 449T E592
------
10:1 $30,074 E7 96.5 339 3150 51.69 RB,87
350 1800 460 449T E593
------
10:1@ $33,682 E7 96.2 395 3200 51.69 RB
Hazardous Duty™ Explosion Proof, Three Phase
Blue Chip XRI
®
NEMA Premium Severe Duty
Class I Groups C & D, Class II Groups F & G, Rigid Base
✯ Stock Model
Blue shaded areas are Cast Iron Frames
R-164 Rework for 10:1 Constant Torque:
Fan Change* & Re-Nameplate
FRAME LIST PRICE
254-286 $175
324-326 $200
364-365 $225
404-449 $250
* Fan change to allow 10:1 constant torque
may reduce motor full load efficiency below
EPAct levels.
Operation of motor on non-sinusoidal wave
form exempts motor from EPAct mandated
efficiency levels.
“R164 Rework” Table:
Multiplier Symbol S4
Catalog numbers (Cat No.) highlighted in bold blue have efficiency levels
that meet or exceed U.S. EPAct and/or NRCan Canadian standards.
@ Requires larger fan
HP RPM VOLTS FRAME CAT. MODEL CT SPEED LIST MULT. NOM. F.L. “C” FOOT
NO. NO. RANGE PRICE SYMB. EFF. AMPS DIM. NOTES
APPROX.
WGHT.
LBS.
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