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C308B

Datasheet C308B Datasheet (Marathon Electric)

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Page 1
PRODUCT INFORMATION PACKET
Model No: 256TTGN16004
Catalog No: C308B
20 HP Explosion Proof Motor, 3 phase, 3600 RPM, 230/460 V, 256TC Frame, EPFC
Explosion Proof NEMA Motors
Regal and Marathon are trademarks of Regal Beloit Corporation or one of its affiliated companies.
©2020 Regal Beloit Corporation, All Rights Reserved. MC017097E
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Page 2
Nameplate Specifications
Output HP 20 Hp Output KW 14.9 kW Frequency 60 Hz Voltage 230/460 V Current 47.0/23.4 A Speed 3537 rpm Service Factor 1.15 Phase 3 Efficiency 92.4 % Power Factor 86 Duty Continuous Insulation Class F Design Code B KVA Code G Frame 256TC Enclosure Explosion Proof Fan cooled Thermal Protection Thermostats (N/C) Ambient Temperature 40 °C Drive End Bearing Size 6309 Opp Drive End Bearing Size 6210 UL UL Listed And CSA Certified CSA Y CE N IP Code 54
Hazardous Location
EXP PROOF CL I GR C&D CL II GR F&G T3B
Technical Specifications
Electrical Type Squirrel Cage Inverter Rated Starting Method Line Or Inverter Poles 2 Rotation Reversible Resistance Main .394 Ohms Mounting Round Motor Orientation Horizontal Drive End Bearing Ball Opp Drive End Bearing Ball Frame Material Cast Iron Shaft Type T Overall Length 25.77 in Frame Length 12.26 in Shaft Diameter 1.625 in Shaft Extension 3.75 in Assembly/Box Mounting F1 ONLY Connection Drawing A-EE7308T Outline Drawing B-SS207446-1225
This is an uncontrolled document once printed or downloaded and is subject to change without notice. Date Created:18/06/2020
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Page 3
10/2/2008 1:39:00 AM
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Page 4
Uncontrolled Copy
HIGH VOLTAGE
(U1) T1
(V1) T2
(W1) T3
(U2) T4
(U3) T7
(V2) T5
(V3) T8
(W2) T6
(W3) T9
LOW VOLTAGE
(U1) T1
(U3) T7
(V1) T2
(V3) T8
LOW VOLTAGE
T4 T5 T6
P1
HIGH VOLTAGE
T4 T7 T5 T8 T6 T9
L1
L2
L3
L1 T7 T1 L2 T8 T2 L3 T9 T3
L1 T1 L2 T2 L3 T3
P2
NOTE FOR FACTORY USE ONLY: TO SURGE TEST FOR COMMON CONNECT: HIGH VOLT: CONNECT P1 TO T1 THEN P2 TO L1 LOW VOLT: CONNECT P1 TO T1 & T7, THEN P2 TO L1
L1
L2
P1
P2
PROT.
THREE PHASE
DUAL VOLTAGE MOTOR
PROT.
T1
T4
T7
T9
T6
T3
T8
T5
THERMO-PROTECTORS CONNECTED IN SERIES
RED OR
PURPLE
BLACK
BLACK
YELLOW
BROWN
ORANGE
BLACK
BLACK
T2
PURPLE
RED
BLUE
OR RED
P1 (TB1)
T1 (U1)
T4 (U2)
T9 (W3)
T7 (U3)
T8 (V3)
T6 (W2)
T5 (V2)
T2 (V1)
T3 (W1)
P2 (TB2)
(W1) T3
(W3) T9
L3
(U2) T4
(V2) T5
(W2) T6
DRAWING REVISION
ECO
ECO DESCRIPTION
T
ECO-0159915
ADDED TERMINAL CONNECTION DIAGRAM
COPYRIGHT REGAL BELOIT AMERICA, INC. ALL RIGHTS RESERVED.
PROPRIETARY AND CONFIDENTIAL INFORMATION - THIS DOCUMENT IS THE PROPERTY OF
REGAL BELOIT AMERICA, INC. ("OWNER") AND CONTAINS OWNER'S PROPRIETARY
INFORMATION. ANY PERSON, CORPORATION OR OTHER FIRM RECEIVING IT IS DEEMED, BY RECEIVING IT, TO AGREE THAT IT, AND/OR ANY PART OF IT, SHALL NOT BE DISCLOSED TO ANY PERSON, CORPORATION OR OTHER ENTITY, DUPLICATED, AND/OR USED, EXCEPT
AS EXPRESSLY APPROVED IN WRITING IN ADVANCE BY OWNER. THIS DOCUMENT SHALL
BE RETURNED TO OWNER UPON REQUEST. IT MAY BE SUBJECT TO CERTAIN
RESTRICTIONS UNDER APPLICABLE EXPORT CONTROL LAWS AND REGULATIONS.
REVISION BY
ZR
APPROVED BY
DR
NOTE: LEAD'S COLOR CAN BE YELLOW OR WHITE FOR MT2 PLANT
DATE
01-14-2019
DATE
01-15-2019
DRAWN BY
DATE
APPROVED BY
DATE
REFERENCE
THIRD ANGLE PROJECTION
SMC
05-13-1992
05-13-1992
EE7308/EE7300
PROT.
VIEW OF TERMINAL END
TM
Regal Beloit America, Inc.
TB
DESCRIPTION
CONN DIAGRAM-INTERNAL
MATERIAL
SIZE
DRAWING NUMBER
3 PHASE - DUAL VOLTAGE MOTOR
A
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EE7308T
PROCESS/FINISH
SHEET
1 OF 1
Page 5
²
²
MOUNT
SEVERE
DRIP
ODE BRACKET
MOTOR
WINDING: K256288
HAZARDOUS
EXP PROOF CL I GR C&D CL II GR F&G T3B
CONN. DIAGRAM: A-EE7308T
FORM: 3531 REV_4 2/27/06
O
N
E
S
PREPARED BY: FAREEDA DUDEKULA
DATE: FT-LB:
9/10/2018
T
* NONE PPR
*
0.223 1.0790.253
THERMOSTATS PROTECTORS
TSTATS (N/C) NOT
R1 (ohms/ph) R2 (ohms/ph) X1 (ohms/ph)
BALL BALL
6309 6210
DE ODE
POLYREX EM
GREASE
DE BRACKET TYPE
BEARINGS
C-FACE
STANDARD
TYPE
29.7 LB-FT 55.0 LB-FT 185% 84.0 LB-FT 283% 55
72 dBA 81 dBA 1.30
@ 3 FT. MAX. LOAD WK²ROTOR WK²POWER
F.L. PF
86.0 85.0 78.0 91.7
145
PH HZ INSL S.F. AMB ELEV.
3 60/50 F 1.15 40 3300
F.L. EFF
230/460#190/380 LINE OR INVERTER
92.4 91.7 91.0 GTD EFF
20 14.9 TFN B
VOLTS
3600 3537 256TC TEFC
SPEED:
HP KW TYPE DESIGN
SYNC RPM FL RPM
ORDER #: REFERENCE MODEL #: 256TTGN16004
CUSTOMER: CUSTOMER P.O. #:
ROUND NO NO NONE
WDG RTD's BRG RTD's
NONE NONE NONE FALSE
X2 (ohms/ph) FLOAT
1.119
THERMISTORS CONTROL
UL:
NONE
VOLTAGE: HZ:
NONE
NA
NONE
NONE
ENCODER:
BRAKE:
NONE NONE
NONE
INV. HP SPEED RANGE:
INVERTER TORQUE:
NONE
NONE
CONSTANT 10:1
Xm (ohms/ph)
37.772
VIBRATION (in/sec)
0.150 ODE
HEATERS
SPACE
NA
SHAFT TYPE
T
HORIZONTAL
SPECIAL DE
NONE NONE
SPECIAL ODE
1045 HOT ROLLED (C-204)
SHAFT MATERIAL
FRAME MATERIAL
CAST IRON
BLUE (ENAMEL)
`
TYPE
LB-FT
*** SUPPLEMENTAL INFORMATION ***
ORIENTATION
26
DUTY
LOCATION
COVER SCREENS
PAINT
LB-FT
20 SEC. 370 LB.
2
460 V
3/4 LD EFF
47/23.4&42/21
AMPS
NONE 10
TYPICAL MOTOR PERFORMANCE DATA
CERTIFICATION DATA SHEET
L.R. TORQUEF.L. TORQUE LR AMPS @
START TYPE
1/2 LD EFF
1/2 LD PF3/4 LD PF
CONT
B.D. TORQUE
STARTS/HOURSAFE STALL TIME
SQ CAGE INV RATED
F.L. RISE (
°
C)
MOTOR WGT
DUTY
ELECT. TYPE
FRAME ENCLOSURE
CUSTOMER PART #: OUTLINE: B-SS207446-1225
MOUNTING: F1 ONLY
CAT #:
P.O. BOX 8003
WAUSAU, WI 54401-8003
PH. 715-675-3311
C308B
KVA CODE
G
DATA VOLTS: 460
Uncontrolled Copy
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Page 6
v
Speed (RPM)
Current (Amps)
P
E
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
0.0
0 500 1000 1500 2000 2500 3000 3500 4000
90.0
30.0
40.0
50.0
0% 20% 40% 60% 80% 100% 120% 140%
TOR
Q
U
F
60.0
70.0
EFF
80.0
100.0
90.0
Torque (ft-lb)
Efficiency (%) P.F. (%) Cur rent (Amps)
55.0 50.0 84.0 29.7 0.00 3600
145 131 100 23.4 7.0 20.0
0 1800 3155 3537 3600
P.F. (%)
Load 0% 25% 50% 75% 100% 115% 125% LR
Submitted by:
Customer:
Attention:
Date:
3600 3585 3570 3555 3537 3,525 3515 0
0.00 7.5 15.0 22.0 29.7 31.0 37.5 55.0
10.5 58.5 78.0 85.0 86.0 87.0 88.5 37.0
LR Pull-Up BD Rated Idle
FAREEDA DUDEKULA
7.0 9.0 13.0 18.0 23.4 26.0 29.5 145
11/29/2018 256TTGN16004
Current (Amps)
Torque (ft-lb)
RPM
Efficiency (%)
Motor Speed Data
LOAD
87.5 91.0 91.7 92.4 91.7 90.2
Data Sheet
Torque Amps
Uncontrolled Copy
Speed -Torque Curve
Motor Load Data
RPM
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
A
M
P
S
Rotor/Shaft wk²
Duty
Ambient
Elevation
Ref Wdg
Sound Pressure @ 1M
VFD Rating
Outline Dwg B-SS207446-1225
Conn. Diag A-EE7308T
Additional Specifications:
0
0
0.2530 0.2230 1.0790 1.1190 37.7720
R1 R2 X1 X2 Xm
EQUIV CKT (OHMS / PHASE)
Design
LR Code letter
Service Factor
Temp Rise @ FL
Construction
Voltage
Frequency
HP
Sync. RPM
Frame
Enclosure
Information Block
K256288 NONE
CONSTANT 10:1
72 dBA
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
A
M
P
S
CONT
1,000
1.30
feet
Lb-Ft²
1.15
55
40
°
C
G
°
C
230/460#190/380
EPFC
TGS
60
B
Hz
256
V
Submittal
Data @
460
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