Ironhorsem General Purpose AC Motors Manual Number: IH-MT-AC_UMW Motor Series: MTR (11th Ed. – 06/29/2022) - page 4
Chapterr
Accessories
4
Table of Contents
Replacement Parts
4-2
Junction boxes, c-flanges, Drive Bells, and Current Diverter Rings for IronHorse® MTDP Drip-Proof
Three-Phase Motors
4-2
Capacitors and Centrifugal Switches for IronHorse® Single-Phase Motors
4-4
Spare/Replacement Parts for MTF2 Single-Phase Farm-Duty Motors
4-4
Spare/Replacement Parts for MTR2/MTRJ Single-Phase Motors
4-6
Spare/Replacement Parts for MTR2/MTRP/MTRJ Three-Phase Motors
4-7
Spare/Replacement Parts for MTCP2 Premium-Efficiency Three-Phase Motors
4-8
C-Flange Kits
4-10
C-Flange Kits for MTCP2 Premium-Efficiency Three-Phase Motors
4-10
STABLE™ Slide Bases
4-12
Slide Base Selection
4-13
Slide Base Dimensions
4-14
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-1
Chapter 4: Accessories
Replacement Parts
Junction boxes, c-flanges, Drive Bells, and Current Diverter Rings for IronHorse® MTDP
Drip-Proof Three-Phase Motors
Opposite drive
There are a variety of spare /
end endbell
replacement parts for the IronHorse,
MTDP, open drip-proof motors.
Replacement junction boxes, c-face kits,
Junction Box
drive end and opposite drive end bells
are available for all frame sizes. "CDR"
current diverter rings are also available
for use with these motors.
Drive end endbell
C-face
Current diverter ring
MTDP Three-Phase Motor Spare/Replacement Parts
Motor
Part Number
Accessory Type
For Use With
HP
56 and 140T frame ODP
MTADP-JBOX-140
1, 1.5, 2, 3 HP
motors
MTADP-JBOX-180
180T frame ODP motors
3, 5, 7.5HP
MTADP-JBOX-210
Junction Box
210T frame ODP motors
7.5, 10HP
MTADP-JBOX-250
250T frame ODP motors
15, 20HP
MTADP-JBOX-280
280T frame ODP motors
25, 30HP
MTADP-JBOX-320
320T frame ODP motors
40, 50HP
MTADP-CFACE-140TC
140T frame ODP motors
1, 1.5, 2 HP
MTADP-CFACE-180TC
180T frame ODP motors
3, 5
MTADP-CFACE-210TC
210T frame ODP motors
7.5, 10
C-face
MTADP-CFACE-250TC
250T frame ODP motors
15, 20
MTADP-CFACE-280TC
280T frame ODP motors
25, 30
MTADP-CFACE-320TC
320T frame ODP motors
40, 50
MTADP-DEB-140
140T frame ODP motors
1, 1.5, 2 HP
MTADP-DEB-180
180T frame ODP motors
3, 5
MTADP-DEB-210
210T frame ODP motors
7.5, 10
Drive end endbell
MTADP-DEB-250
250T frame ODP motors
15, 20
MTADP-DEB-280
280T frame ODP motors
25, 30
MTADP-DEB-320
320T frame ODP motors
40, 50
MTADP-OEB-140
140T frame ODP motors
1, 1.5, 2 HP
MTADP-OEB-180
180T frame ODP motors
3, 5
MTADP-OEB-210
210T frame ODP motors
7.5, 10
Opposite drive end endbell
MTADP-OEB-250
250T frame ODP motors
15, 20
MTADP-OEB-280
280T frame ODP motors
25, 30
MTADP-OEB-320
320T frame ODP motors
40, 50
*** TABLE CONTINUED NEXT PAGE ***
Page 4-2
Chapter 4: Accessories
*** TABLE CONTINUED FROM PREVIOUS PAGE ***
MTDP Three-Phase Motor Spare/Replacement Parts
Motor
Part Number
Accessory Type
For Use With
HP
MTADP-CDR-140
140T frame ODP motors
1, 1.5, 2
MTADP-CDR-180
180T frame ODP motors
3, 5
MTADP-CDR-210
210T frame ODP motors
7.5, 10
Current diverter ring
MTADP-CDR-250
250T frame ODP motors
15, 20
MTADP-CDR-280
280T frame ODP motors
25, 30
MTADP-CDR-320
320T frame ODP motors
40, 50
Current Diverter Ring
IronHorse® General PurposeAC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-3
Chapter 4: Accessories
Capacitors and Centrifugal Switches for IronHorse® Single-Phase Motors
Single-phase motors use capacitors to provide starting torque when power is first applied to the motor.
When the motor begins to turn, the start capacitor is no longer needed and is taken out of the circuit by a
centrifugal switch. In addition to the start capacitor, 1-1/2 hp and larger IronHorse single-phase motors
have run capacitors to allow the motor to develop higher running torque and greater efficiency. Run
capacitors also help improve the motor power factor.
MTF2 Accessory Locations
MTR2/MTRJ Accessory Locations
Centrifugal Switch
Run
Centrifugal Switch
Fan Shroud
Capacitor
Stationary Switch
Fan
Fan Shroud
Fan
Start
Capacitor
Junction Box
Start Capacitor
Junction
Run Capacitor
Box
Manual O/L Switch
Motor Base
Note: Not all accessories
are applicable to all MTF2 motors
Note: Not all accessories are applicable to all MTR and MTR2 motors
Spare/Replacement Parts for MTF2 Single-Phase Farm-Duty Motors
MTF2 Single-Phase Motor Spare/Replacement Parts
Dimension
Accessory
Capacitance
Rated
Applicable
Motor
Part Number
Height x Ø
Type
(µF)
Voltage
Motor Number
HP
(in[mm])
3.39 x 1.81
MTF2-002-1B18-182,
MTAF2-CAP-16
250
2, 3
[86.1 x 46.0]
MTF2-003-1B18
300
Start
3.39 x 1.81
MTAF2-CAP-17
550
MTF2-005-1B18
5
capacitor
[86.1 x 46.0]
4.33 x 1.97
MTAF2-CAP-18
400
330
MTF2-7P5-1B18
7.5
[110.0 x 50.0]
3.96 x 1.77
MTAF2-CAP-19
550
330
MTF2-010-1B18-182
10
[100.6 x 45.0]
3.96 x 1.97
MTAF2-CAP-20
25
450
MTF2-002-1B18
2
[100.6 x 50.0]
4.17 x 1.97
MTAF2-CAP-21
30
450
MTF2-003-1B18
3
Run
[106.0 x 50.0]
capacitor
3.54 x 2.00
MTAF2-CAP-22
50
450
MTF2-005-1B18
5
[90 x 51]
4.25 x 2.12
MTAF2-CAP-23
45
500
MTF2-7P5-1B18-215
7.5
[105 x 54]
4.72 x 1.95
MTAF2-CAP-24
60
500
MTF2-010-1B18
10
[120 x 50]
MTF2-002-1B18-182
MTAF2-CSW-05
Centrifugal
n/a
MTF2-003-1B18
2, 3, 5
switch
MTF2-005-1B18
MTAF2-CSW-06
250
MTF2-7P5-1B18-215
7.5, 10
MTF2-002-1B18-182
MTAF2-SSW-05
n/a
MTF2-003-1B18
2,3, 5
Stationary
MTF2-005-1B18
Switch
n/a
MTF2-7P5-1B18-215
MTAF2-SSW-06
n/a
7.5, 10
MTF2-010-1B18
MTAF2-MOL-1
n/a
MTF2-002-1B18-182
2
MTAF2-MOL-2
n/a
MTF2-003-1B18
3
Manual overload
MTAF2-MOL-3
n/a
MTF2-005-1B18
5
switch
MTAF2-MOL-4
n/a
MTF2-7P5-1B18-215
7.5
MTAF2-MOL-5
n/a
MTF2-010-1B18
10
*** TABLE CONTINUED NEXT PAGE ***
Page 4-4
Chapter 4: Accessories
*** TABLE CONTINUED FROM PREVIOUS PAGE ***
MTF2 Single-Phase Motor Spare/Replacement Parts
Dimension
Accessory
Capacitance
Rated
Applicable
Motor
Part Number
Height x Ø
Type
(µF)
Voltage
Motor Number
HP
(in[mm])
MTF2-002-1B18-182
MTF2-CFACE-180TC
n/a
n/a
n/a
MTF2-003-1B18
2, 3, 5
C-face kit
MTF2-005-1B18
MTF2-7P5-1B18-215
MTF2-CFACE-210TC
n/a
n/a
n/a
7.5, 10
MTF2-010-1B18
MTF2-002-1B18-182
MTAF2-JBOX-180
Junction box
n/a
n/a
n/a
MTF2-003-1B18
2, 3, 5
MTF2-005-1B18
MTF2-7P5-1B18-215
MTAF2-JBOX-210
n/a
n/a
n/a
7.5, 10
MTF2-010-1B18
MTF2-002-1B18-182
MTAF2-FAN-180
n/a
n/a
MTF2-003-1B18
2, 3, 5
Fan
MTF2-005-1B18
MTF2-7P5-1B18-215
MTAF2-FAN-210
n/a
n/a
7.5, 10
MTF2-010-1B18
MTF2-002-1B18-182
MTAF2-SHROUD-180
n/a
n/a
MTF2-003-1B18
2, 3, 5
Fan shroud
MTF2-005-1B18
MTF2-7P5-1B18-215
MTAF2-SHROUD-210
n/a
n/a
7.5, 10
MTF2-010-1B18
MTF2 Single-Phase Motor Spare/Replacement Parts
Temperature Rating -
Short Time Rating
Deg C
ADC Part
Manufacturer Part
Open
Closed
Current
Min (Sec)
Max (Sec)
Number
Number
-+/-5
+/-9
MTAF2-MOL-1
BEH-70KB 79A 60/230V KWE
120
74
59
6.5
16
MTAF2-MOL-2
BEH-42KB 89A 60/230V KWE
120
74
70.6
6.5
16
MTAF2-MOL-3
LEH-31JD 171A 60/230V KWE
135
96
129
6.5
16
MTAF2-MOL-4
LEH-28KD 238A 60/230V KWE
135
96
190
11
20.5
MTAF2-MOL-5
LEH-00BB 366A 60/230V KWE
120
74
203
10
21.5
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-5
Chapter 4: Accessories
Capacitors and Centrifugal Switches for IronHorse Single-Phase Motors (continued)
Spare/Replacement Parts for MTR2/MTRJ Single-Phase Motors
MTR2/MTRJ Single-Phase Motor Spare/Replacement Parts (NOT for MTR Motors)*
Dimension
MTR2
Accessory
Capacitance
Rated
Applicable MTR2
Part Number
Height x Ø
Motor
Type
(µF)
Voltage
Motor Number
(in [mm])
HP ; RPM
2.80 x 1.46
MTR2-P33-1AB36
1/3 : 3600
MTA-CAP-10
Start Capacitor
200
[71.1 x 37.1]
MTRJ-001-1AB36J
1 : 3600
MTR2-P33-1AB18
1/3: 1800
MTA-CAP-11
Start Capacitor
300
MTR2-P50-1AB36
1/2 : 3600
MTRJ-1P5-1AB36J
1 1/2 : 3600
165
MTR2-P50-1AB18
1/2: 1800
3.39 x 1.85
MTA-CAP-12
Start Capacitor
400
MTR2-P75-1AB36
3/4 : 3600
[86.1 x 47.0]
MTRJ-002-1AB36J
2 : 3600
MTR2-P75-1AB18
3/4: 1800
MTA-CAP-13
Start Capacitor
500
MTR2-001-1AB18
1: 1800
MTR2-001-1AB36
1 : 3600
3.38 x 1.81
MTR2-1P5-1ABxx
1 1/2 : all
MTA-CAP-14
Run Capacitor
40
250
[85.9 x 46.0]
MTR2-002-1ABxx
2 : all
4.41 x 1.85
MTRJ-1P5-1AB36J
1 1/2 : 3600
MTA-CAP-15
Start Capacitor
800
165
[112.0 x 47.0]
MTRJ-002-1AB36J
2 : 3600
4.375 x 1.8125
MTA-CAP-22
Start Capacitor
900
165
MTR2-1P5-1AB18
1-1/2 : 1800
[111.1 x 46.0]
MTRJ-P33-1AB36J
1/3 : 3600
3.39 x 1.85
MTA-CAP-31
Start Capacitor
150
165
MTRJ-P50-1AB36J
1/2 : 3600
[86.1 x 47.0]
MTRJ-P75-1AB36J
3/4 : 3600
MTA-CSW-03
Centrifugal Switch
MTR2-xxx-1AB36
all 3600 rpm
MTA-CSW-04
Stationary Switch
125
MTR2-xxx-1ABxx
all
MTA-CSW-08
Centrifugal Switch
MTR2-xxx-1AB18
all 1800 rpm
MTA2-BASE-56
Motor Base
n/a
n/a
MTA2-FAN-56
Fan
MTR2-xxx-1ABxx
n/a
all
MTA2-JBOX-56
Junction Box
MTRJ-xxx-1ABxx
MTA2-SHROUD-56
Fan Shroud
* These accessories are spare/replacement components only for MTR2 series IronHorse motors.
Accessories for MTR2 series motors are NOT compatible with MTR series motors.
Page 4-6
Chapter 4: Accessories
Spare/Replacement Parts for MTR2/MTRP/MTRJ Three-Phase Motors
IronHorse bases, fans, and fan shrouds are available as direct replacement parts for MTR2, and MTRP
motors.
These parts are field installable, and include installation instructions.
Fan
Fan Shroud
Junction Box
Motor Base
Fan
MTR2/MTRP/MTRJ Series Three-Phase Motor Spare/
Replacement Part*
MTR2/MTRP
Part
Applicable MTRP
Description
Motor
Number
Motor Number
HP : RPM
MTA2-BASE-56
Motor base
MTRP-xxx-3BDxx
MTA2-JBOX-56
Junction box
MTR2-Pxx-3BDxx
MTRJ-Xxx-3BDxx
MTA2-SHROUD-56
Fan shroud
All
MTR2-Pxx-3BDxx
MTA2-FAN-56
Fan
MTRJ-Xxx-3BDxx
MTRP-xxx-3BDxx
MTA2-FAN-56-1
Fan
MTRJP-Xxx-3BDxx
* These accessories are spare/replacement components only for MTR2/
MTRP series IronHorse motors.
IronHorse® General PurposeAC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-7
Chapter 4: Accessories
Spare/Replacement Parts for MTCP2 Premium-Efficiency Three-Phase Motors
IronHorse junction boxes, TEFC fans, and TEFC fan shrouds are available as direct replacement parts for
MTCP2 motors.
These parts are field installable, and include installation instructions.
Fan
Fan Shroud
Junction Box
MTCP2 Premium-Efficiency Three-Phase Motor Replacement Parts
Product
Fits
Fits PE Motor
Motor
Part Number (1)
Description (2)(3)(4)
Weight
Frame
Number (1)
HP
(lb)
MTAP2-FAN-140
Replacement Fan
MTCP2-001-3BD12
1
0.029
MTCP2-001-3BD18(C)
1
MTAP2-SHROUD-140
Replacement Fan Shroud
143
1.04
MTCP2-1P5-3BD18(C)
1-1/2
&
MTCP2-1P5-3BD36
1-1/2
145
MTAP2-JBOX-140
Replacement Junction Box
MTCP2-002-3BD18(C)
2
2.54
MTCP2-002-3BD36
2
MTAP2-FAN-180
Replacement Fan
MTCP2-1P5-3BD12
1-1/2
0.053
MTCP2-002-3BD12
2
MTAP2-SHROUD-180
Replacement Fan Shroud
182
2.23
MTCP2-003-3BD18(C)
3
&
MTCP2-003-3BD36
3
184
MTAP2-JBOX-180
Replacement Junction Box
MTCP2-005-3BD18(C)
5
3.28
MTCP2-005-3BD36
5
Replacement Fan
MTCP2-7P5-3BD36
7-1/2
MTAP2-FAN-210-2
0.075
(for 2-pole motors)
MTCP2-010-3BD36
10
213
MTAP2-FAN-210
Replacement Fan (4&6-pole)
MTCP2-003-3BD12
3
0.075
&
MTCP2-005-3BD12
5
MTAP2-SHROUD-210
Replacement Fan Shroud
215
4.98
MTCP2-7P5-3BD18(C)
7-1/2
MTAP2-JBOX-210
Replacement Junction Box
MTCP2-010-3BD18(C)
10
3.28
1) These MTAP2 replacement components fit only MTCP2 Premium-Efficiency motors;
they will NOT fit MTC EPAct motors.
2) Replacement fans include fan, snap ring, and instructions.
3) Replacement fan shrouds include shroud, bolts w/washers, rubber plug, and
instructions.
4) Replacement junction boxes include gasketed base & cover assembly, base gasket, base
bolts, and instructions.
*** TABLE CONTINUED NEXT PAGE ***
Page 4-8
Chapter 4: Accessories
Spare/Replacement Parts for MTCP2 Premium-Efficiency 3-Phase Motors (continued)
*** TABLE CONTINUED FROM PREVIOUS PAGE ***
MTCP2 Premium-Efficiency Three-Phase Motor Replacement Parts
Product
Fits
Fits PE Motor
Motor
Part Number (1)
Description (2)(3)(4)
Weight
Frame
Number (1)
HP
(lb)
Replacement Fan
MTCP2-015-3BD36
15
MTAP2-FAN-250-2
0.090
(for 2-pole motors)
MTCP2-020-3BD36
20
254
MTAP2-FAN-250
Replacement Fan (4&6-pole)
MTCP2-7P5-3BD12
7-1/2
0.104
&
MTCP2-010-3BD12
10
MTAP2-SHROUD-250
Replacement Fan Shroud
256
8.27
MTCP2-015-3BD18(C)
15
MTAP2-JBOX-250
Replacement Junction Box
MTCP2-020-3BD18(C)
20
8.16
MTAP2-FAN-280
Replacement Fan
MTCP2-015-3BD12
15
0.090
284
MTCP2-020-3BD12
20
MTAP2-SHROUD-280
Replacement Fan Shroud
&
10.03
MTCP2-025-3BD18(C)
25
286
MTAP2-JBOX-280
Replacement Junction Box
MTCP2-030-3BD18(C)
30
8.16
MTAP2-FAN-320
Replacement Fan
0.126
324
MTCP2-040-3BD18
40
MTAP2-SHROUD-320
Replacement Fan Shroud
&
12.50
MTCP2-050-3BD18
50
326
MTAP2-JBOX-320
Replacement Junction Box
23.59
MTAP2-FAN-360
Replacement Fan
0.126
364
MTCP2-060-3BD18
60
MTAP2-SHROUD-360
Replacement Fan Shroud
&
13.76
MTCP2-075-3BD18
75
365
MTAP2-JBOX-360
Replacement Junction Box
21.05
MTAP2-FAN-400
Replacement Fan
0.150
MTAP2-SHROUD-400
Replacement Fan Shroud
405
MTCP2-100-3BD18
100
16.67
MTAP2-JBOX-400
Replacement Junction Box
32.74
MTAP2-FAN-440
Replacement Fan
444
0.150
MTCP2-125-3BD18
125
445
MTAP2-SHROUD-440
Replacement Fan Shroud
MTCP2-150-3BD18
150
17.97
&
MTCP2-200-3BD18
200
MTAP2-JBOX-440
Replacement Junction Box
447
36.49
MTAP2-FAN-449
Replacement Fan (250hp)
0.205
MTAP2-FAN-449-1
Replacement Fan (300hp)
MTCP2-250-3D18
250
0.174
449
MTAP2-SHROUD-449
Replacement Fan Shroud
MTCP2-300-3D18
300
22.27
MTAP2-JBOX-449
Replacement Junction Box
36.49
1) These MTAP2 replacement components fit only MTCP2 Premium-Efficiency motors;
they will NOT fit MTC EPAct motors.
2) Replacement fans include fan, snap ring, and instructions.
3) Replacement fan shrouds include shroud, bolts w/washers, rubber plug, and instructions.
4) Replacement junction boxes include gasketed base & cover assembly, base gasket, base
bolts, and instructions.
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-9
Chapter 4: Accessories
C-Flange Kits
C-Flange Kits for MTCP2 Premium-Efficiency Three-Phase Motors
C-Flange Kits
Any IronHorse MTCP2 Premium-Efficiency T-frame cast-iron
motor from 1-300 hp can be converted to C-face mounting
by using a cast iron C-flange kit. These kits are field
installable and include the C-faces and mounting bolts.
C-Flange Dimensions
C-flange dimensions are shown in Chapter 2 (Mounting &
Initial Startup) along with TC-frame motor dimensions.
MTAP2 T-Frame C-Flange Kit
Authorized EASA service centers are equipped with the necessary equipment to quickly and
inexpensively install C-Face kits. Visit the EASA website at www.easa.com to find the nearest
authorized service center.
C-faces must be installed by an EASA motor shop in order to maintain the motor warranty.
MTCP2 Premium-Efficiency T-frame Three-Phase Motor C-Flange Kits
Product
Part Number (1)
Fits Frame
Fits Motor (1)
Motor HP
Weight
(lb)
MTCP2-001-3BD12
1
MTCP2-001-3BD18
1
MTCP2-1P5-3BD18
1-1/2
MTAP2-CFACE-140TC
143T & 145T
5.62
MTCP2-1P5-3BD36
1-1/2
MTCP2-002-3BD18
2
MTCP2-002-3BD36
2
MTCP2-1P5-3BD12
1-1/2
MTCP2-002-3BD12
2
MTCP2-003-3BD18
3
MTAP2-CFACE-180TC
182T & 184T
10.36
MTCP2-003-3BD36
3
MTCP2-005-3BD18
5
MTCP2-005-3BD36
5
MTCP2-003-3BD12
3
MTCP2-005-3BD12
5
MTCP2-7P5-3BD18
7-1/2
MTAP2-CFACE-210TC
213T & 215T
12.68
MTCP2-7P5-3BD36
7-1/2
MTCP2-010-3BD18
10
MTCP2-010-3BD36
10
MTCP2-7P5-3BD12
7-1/2
MTCP2-010-3BD12
10
MTCP2-015-3BD18
15
MTAP2-CFACE-250TC
254T & 256T
31.20
MTCP2-015-3BD36
15
MTCP2-020-3BD18
20
MTCP2-020-3BD36
20
1) MTAP2-CFACE C-flange kits will NOT fit MTC EPAct motors.
*** TABLE CONTINUED NEXT PAGE ***
Page 4-10
Chapter 4: Accessories
C-Flange Kits for MTCP2 Premium-Efficiency Three-Phase Motors (continued)
*** TABLE CONTINUED FROM PREVIOUS PAGE ***
MTCP2 Premium-Efficiency T-frame Three-Phase Motor C-Flange Kits
Product
Part Number (1)
Fits Frame
Fits Motor (1)
Motor HP
Weight
(lb)
MTCP2-015-3BD12
15
MTCP2-020-3BD12
20
MTAP2-CFACE-280TC
284T & 286T
31.20
MTCP2-025-3BD18
25
MTCP2-030-3BD18
30
MTCP2-040-3BD18
40
MTAP2-CFACE-320TC
324T & 326T
47.40
MTCP2-050-3BD18
50
MTCP2-060-3BD18
60
MTAP2-CFACE-360TC
364T & 365T
48.70
MTCP2-075-3BD18
75
MTAP2-CFACE-400TC
405T
MTCP2-100-3BD18
100
132.17
MTCP2-125-3BD18
125
MTAP2-CFACE-444TC
444T & 445T
137.44
MTCP2-150-3BD18
150
MTAP2-CFACE-447TC
445/7T
MTCP2-200-3BD18
200
134.83
MTCP2-250-3D18
250
MTAP2-CFACE-449TC
449T
162.50
MTCP2-300-3D18
300
1) MTAP2-CFACE C-flange kits will NOT fit MTC EPAct motors.
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-11
Chapter 4: Accessories
STABLE™ Slide Bases
AutomationDirect offers STABLE AC motor adjustable slide bases for mounting most AC motor brands with
frame sizes from 56 to 449. These heavy duty steel bases are primed with an oven-baked primer ready for
painting. The motor mounting bolts are welded to the exact motor foot pattern to prevent the bolts from
spinning.
Page 4-12
Chapter 4: Accessories
Slide Base Selection
STABLE™ Motor Slide Bases
Fits Frame
Product
Part Number
IronHorse Model
Type
Weight (lb)
MTA-BASE-W56*
56C*
2.8
MTR2-xxx-xxxxx*, MTRP-xxx-xxxxx
MTCP2-001-3BD18(C)(CK), MTCP2-1P5-3BD36
MTA-BASE-W143T
143T/TC
4.6
MTDP-001-3BD18
MTCP2-001-3BD12
MTCP2-1P5-3BD18(C)(CK)
MTA-BASE-W145T
145T/TC
5.1
MTCP2-002-3BD18(C)(CK)
MTCP2-002-3BD36, MTDP-1P5-3BD18
MTDP-002-3BD18, MTDP-003-3BD36
MTCP2-1P5-3BD12
MTCP2-003-3BD18(C)(CK)
MTA-BASE-W182T
182T/TC
9.2
MTCP2-003-3BD36, MTF-002-1C18-182
MTF2-002-1B18-182, MTDP-003-3BD18
MTDP-005-3BD36, MTF2-002-1B18-182
MTCP2-002-3BD12
MTCP2-005-3BD18(C)(CK)
MTCP2-005-3BD36
MTA-BASE-W184T
184T/TC
10
MTF-00x-1C18, MTF2-002-1B18-182
MTDP-005-3BD18, MTDP-7P5-3BD36
MTF2-003-1B18, MTF2-005-1B18
MTCP2-003-3BD12
MTCP2-7P5-3BD18(C)(CK)
MTA-BASE-W213T
213T/TC
13
MTCP2-7P5-3BD36
MTDP-7P5-3BD18
MTCP2-005-3BD12
MTCP2-010-3BD18(C)(CK)
MTA-BASE-W215T
215T/TC
15
MTCP2-010-3BD36
MTF2-010-1818, MTDP-010-3BD18
MTF2-7P5-1B18-215, MTF-010-1B18
MTCP2-7P5-3BD12
MTA-BASE-W254T
254T/TC
18
MTCP2-015-3BD18(C)(CK)
MTCP2-015-3BD36, MTDP-015-3BD18
MTCP2-010-3BD12
MTA-BASE-W256T
256T/TC
19
MTCP2-020-3BD18(C)(CK)
MTCP2-020-3BD36, MTDP-020-3BD18
MTCP2-015-3BD12
MTA-BASE-W284T
284T/TC
20
MTCP2-025-3BD18(C)(CK)
MTDP-025-3BD18
MTCP2-020-3BD12
MTA-BASE-W286T
286T/TC
21
MTCP2-030-3BD18(C)(CK)
MTDP-030-3BD18
MTA-BASE-W324T
324T/TC
30
MTCP2-040-3BD18(C)(CK), MTDP-040-3BD18
MTA-BASE-W326T
326T/TC
31
MTCP2-050-3BD18(C)(CK), MTDP-050-3BD18
MTA-BASE-W364T
364T/TC
43
MTCP2-060-3BD18(C)(CK)
MTA-BASE-W365T
365T/TC
43
MTCP2-075-3BD18(C)(CK)
MTA-BASE-W404T
404T/TC
58
-
MTA-BASE-W405T
405T/TC
60
MTCP2-100-3BD18(C)(CK)
MTA-BASE-W444T
444T
63
MTCP2-125-3BD18
MTA-BASE-W445T
445T
65
MTCP2-150-3BD18
MTA-BASE-W447T
447T
89
MTCP2-200-3BD18
MTCP2-250-3D18
MTA-BASE-W449T
449T
94
MTCP2-300-3D18
* IronHorse MTR2 and MTRP 56HC motors have double-punched bases to mount on
slide base MTA-BASE-W56
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-13
Chapter 4: Accessories
Slide Base Dimensions
L
L
N
H
H
F
F
B
D
B D
W
N
J
F
J
F
H
H
M
M
I
E
E
I
K(mm)
E
E
K(mm)
G
G
C
G
G
C
A
A
W182T - W449T Motor Slide Base Dimensions
W56 - W145T Motor Slide Base Dimensions
(W182T-W215T bases have one-piece top plates, similar to W56-W145T)
Dimensions [inches, except as noted] - STABLE™ Motor Slide Bases
MTA-BASE-
A
B
C
D
E
F
G
Wxxxx
56
10-5/8
6-1/2
1-1/8
4-1/2
2-7/16
1-1/2
3-13/16
143T
10-1/2
7-1/2
1-1/8
5-1/2
2-3/4
2
3-3/4
145T
10-1/2
8-1/2
1-1/8
6-1/2
2-3/4
2-1/2
3-3/4
182T
12-3/4
9-1/2
1-1/2
6-1/2
3-3/4
2-1/4
4-1/2
184T
12-3/4
10-1/2
1-1/2
7-1/2
3-3/4
2-3/4
4-1/2
213T
15
11
1-3/4
7-1/2
4-1/4
2-3/4
5-1/4
215T
15
12-1/2
1-3/4
9
4-1/4
3-1/2
5-1/4
254T
17-3/4
15-1/8
2
10-3/4
5
4-1/8
6-1/4
256T
17-3/4
16-7/8
2
12-1/2
5
5
6-1/4
284T
19-3/4
16-7/8
2
12-1/2
5-1/2
4-3/4
7
286T
19-3/4
18-3/8
2
14
5-1/2
5-1/2
7
324T
22-3/4
19-1/4
2-1/2
14
6-1/4
5-1/4
8
326T
22-3/4
20-3/4
2-1/2
15-1/2
6-1/4
6
8
364T
25-1/2
20-1/2
2-1/2
15-1/2
7
5-5/8
9
365T
25-1/2
21-1/2
2-1/2
16-1/2
7
6-1/8
9
404T
28-3/4
22-3/8
3
16-1/2
8
6-1/8
10
405T
28-3/4
23-7/8
3
18
8
6-7/8
10
444T
31-1/4
24-5/8
3
19-1/4
9
7-1/4
11
445T
31-1/4
26-5/8
3
21-1/4
9
8-1/4
11
447T
31-1/4
30-1/8
3
24-3/4
9
10
11
449T
31-1/4
35-1/8
3
29-3/4
9
12-1/2
11
**** Table Continued Next Page for Dimensions H-W ****
Page 4-14
Chapter 4: Accessories
Slide Base Dimensions (continued)
L
L
N
H
H
F
F
B
D
B D
W
N
J
F
J
F
H
H
M
M
I
E
E
I
E
E
K(mm)
K(mm)
G
G
C
G
G
C
A
A
W182T - W449T Motor Slide Base Dimensions
W56 - W145T Motor Slide Base Dimensions
(W182T-W215T bases have one-piece top plates, similar to W56-W145T)
**** Table Continued from Previous Page for Dimensions A-G
****
Dimensions [inches, except as noted] - STABLE™ Motor Slide Bases (continued)
MTA-BASE-
H
I
J
K(mm)
L
M
N
W
Wxxxx
56
2-7/8
3/8
3
2 mm
7/8
5/16 x 1
3/8 x 4
n/a
143T
3-3/8
3/8
3
3 mm
13/16
5/16 x 1
3/8 x 4
n/a
145T
3-7/8
3/8
3
3 mm
13/16
5/16 x 1
3/8 x 4
n/a
182T
4-1/4
1/2
3
3.5 mm
1-1/2
3/8 x 1-3/4
1/2 x 6
4-1/2
184T
4-3/4
1/2
3
3.5 mm
1-1/2
3/8 x 1-3/4
1/2 x 6
5-1/2
213T
4-3/4
1/2
3-1/2
3.8 mm
1-1/2
3/8 x 1-3/4
1/2 x 6
5-1/2
215T
5-1/2
1/2
3-1/2
3.8 mm
1-1/2
3/8 x 1-3/4
1/2 x 6
7
254T
6-5/8
5/8
4
4.6 mm
1-7/16
1/2 x 1-3/4
5/8 x 6
5-5/16
256T
7-1/2
5/8
4
4.6 mm
1-7/16
1/2 x 1-3/4
5/8 x 6
7
284T
7-1/2
5/8
4-1/2
4.6 mm
1-11/16
1/2 x 2
5/8 x 6
7
286T
8-1/4
5/8
4-1/2
4.6 mm
1-11/16
1/2 x 2
5/8 x 6
8
324T
8-1/2
3/4
5-1/4
4.6 mm
2-3/16
5/8 x 2-1/2
3/4 x 9
7
326T
9-1/4
3/4
5-1/4
4.6 mm
2-3/16
5/8 x 2-1/2
3/4 x 9
8-1/2
364T
9-1/8
3/4
6
5.8 mm
2-1/16
5/8 x 2-1/2
3/4 x 9
7-3/4
365T
9-5/8
3/4
6
5.8 mm
2-1/16
5/8 x 2-1/2
3/4 x 9
8-3/4
404T
9-7/8
7/8
7
5.8 mm
2-1/2
3/4 x 3
3/4 x 11
8-3/4
405T
10-5/8
7/8
7
5.8 mm
2-1/2
3/4 x 3
3/4 x 11
10-1/4
444T
11
7/8
7-1/2
5.8 mm
2-1/2
3/4 x 3
3/4 x 11
11
445T
12
7/8
7-1/2
5.8 mm
2-1/2
3/4 x 3
3/4 x 11
13
447T
13-3/4
7/8
7-1/2
8 mm
3
3/4 x 3-1/2
3/4 x 11
16-1/2
449T
16-1/4
7/8
7-1/2
8 mm
3
3/4 x 3-1/2
3/4 x 11
21-1/2
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 4-15
Chapter 4: Accessories
Blank
PAGE
Page 4-16
Chapterr
Reference Information
5
Table of Contents
Using IronHorse® Motors with AC Drives
5-2
Voltage Spike Considerations for AC Drive Control
5-3
Radial Overhung Load
5-4
F1 and F2 Mounting
5-5
Junction Box Dimensions
5-6
Minimum Sheave Diameters
5-7
Decibel Levels
5-8
Shipping Crate Dimensions
5-10
Performance Curves for MTF2 Motors
5-11
Performance Curves for MTR2 Motors
5-16
Performance Curves for MTDP Motors
5-34
Performance Curves for MTRP Motors
5-50
Speed/Torque Curves for MTCP2 Motors (1800 RPM)
5-57
Speed/Torque Curves for MTCP2 Motors (1200 RPM)
5-64
Speed/Torque Curves for MTCP2 Motors (3600 RPM)
5-68
IronHorse® General Purpose
AC Motors User Manual - 11th Ed. - 06/29/2022
Page 5-1
Chapter 5: Reference Information
Using IronHorse® Motors with AC Drives
IronHorse® general purpose motors can be controlled by across-the-line starters such as contactors and
manual motor starters. Under certain circumstances, it can be more desirable to control a three-phase
IronHorse motor with an AC drive.
Single phase AC motors cannot be controlled by typical AC drives.
The advantages of using an AC drive include:
• Lower inrush current at motor startup.
• Ability to change motor speed at any time.
• Greater efficiency in some applications. Fan and Pump applications can use an AC drive to
provide motor flow control by varying the motor speed.
• Solid state power delivery meaning minimum maintenance.
There are a few considerations to take into account when an AC drive is chosen for motor control. Fan
cooled motors are designed to provide sufficient insulation cooling when the motor is running at the rated
speed. The cooling ability of the fan is reduced when motors run at lower speeds. Therefore, there are
limitations on how slowly general purpose motors can be continuously run without prematurely causing
insulation failure.
• Constant torque (CT) applications:
MTCP and MTRP motors 4:1 (down to 1/4 rated speed); MTC, MTR, & MTSS motors 2:1 (1/2
rated speed); MTCP2, MTDP motors 10:1 (1/10 rated speed):
The CT minimum continuous speed for an IronHorse general purpose motor is one quarter or one
half of its rated speed, as shown in the motor Performance Data tables.
(Constant torque loads require the same amount of torque from the motor regardless of speed;
e.g., conveyors, cranes, machine tools.)
• Variable Torque (VT) applications:
MTCP and MTRP motors 10:1 (1/10 rated speed); MTC, MTR, & MTSS motors 5:1 (1/5 rated
speed), MTCP2, MTDP motors 20:1 (1/20 rated speed):
The VT minimum continuous speed for an IronHorse general purpose motor is one tenth or one
fifth of its rated speed, as shown in the motor Performance Data tables.
(Variable torque loads require less torque at lower speeds, resulting in less heat generated by the
motor; e.g., fans, centrifugal pumps.)
The insulation of IronHorse motors in both of the above applications can withstand voltage stress per
NEMA Part 30 having a value of:
• Base Voltage Rating ≤ 600V
• Vpk
= 1kV
• Rise Time
= 2µs
AutomationDirect offers a line of AC Drives that are suitable for operating IronHorse motors per the
above specs and NEMA part 30.
Page 5-2
Chapter 5: Reference Information
Voltage Spike Considerations for AC Drive Control
All AC drives can cause voltage spikes between the drive and the motor. Long cable lengths can increase
these spikes. Therefore, there are maximum cable lengths that can be run between the drive and the
motor. Line (load) reactors can also be installed near the drive output to reduce the voltage spikes.
• 230V & 460V without reactor: 25ft maximum cable length between the drive and motor.
• 230V & 460V with reactor: Motor dependent - 100ft maximum cable length between the drive
and motor.
To avoid overheating, the AC Drive carrier frequency must be set at or below 6kHz.
Double Punched Motors
Several IronHorse® motor models have mounting feet that are double punched so that additional motors
can be mounted using the same dimensions of different size frame motors. This can be helpful when
replacing a motor with a different frame size. See Chapter 2: Mounting and Initial Startup for complete
motor dimensions.
Motor Mounting Feet
Punched for
Frame Size *
Double Punched
Additional Frame Size
56 **
Yes
56H
143T
No
-
145T
Yes
143T
182T ***
Yes
184T
184T
Yes
182T
213T
No
-
215T
Yes
213T
254T
No
-
256T
Yes
254T
284T
No
-
286T
Yes
284T
324T
No
-
326T
Yes
324T
364T
No
-
365T
Yes
364T
405T
Yes
404T
444T
No
-
445T
Yes
444T
445/7T
Yes
445T
449T
No
-
* TC-frame motors have the same mounting foot
punching as the comparable T-frame motors.
** MTSS-xxx-xxxxR round-body motors do not have
mounting feet.
*** MTF-002-1C18-182 only
IronHorse® General PurposeAC Motors User Manual - 11th Ed. - 06/29/2022
Page 5-3
Chapter 5: Reference Information
Radial Overhung Load
The table below lists the maximum overhung radial load for MTCP, MTCP2, and MTC cast-iron motors.
Values listed are in pounds (lbs) at the center of the N-W dimension.
Shaft Loading for AC Induction Horizontal Motors with Ball Bearings
Synchronous Speed
Frame Size
3600
1800
1200
900
143T
106
154
179
192
145T
109
154
176
196
182T
180
227
260
287
184T
180
227
260
289
213T
230
300
350
380
215T
230
300
350
380
254T
470
593
703
774
256T
470
589
705
776
284T
570
735
838
929
286T
570
735
838
929
324T
660
860
990
1100
326T
660
850
980
1090
364T
820
1080
1240
1390
365T
820
1080
1240
1370
404T
-
1270
1450
1600
405T
-
1290
1480
1630
444T
-
1560
1760
1970
445T
-
1520
1760
1970
447T
-
1450
1660
1880
449T
-
1490
1660
1880
Notes:
• All belt loads are considered to act in vertically downward direction.
• Overhung loads include belt tension and weight of sheave.
• For load at end of the shaft, subtract 15%.
• Radial overhung load limits based on bearing L-10 life of 26,280 hours.
• Overhung load limits do not include any effect of unbalanced magnetic
pull.
• In applications involving over hung load, drive end, bearing life, may
be increased by replacing ball bearings with equivalent roller bearings.
Consult your EASA authorized motor shop for details.
Page 5-4