Chapter 1: Getting Started
Page 1–5
IronHorse® General Purpose AC Motors User Manual – 10th Ed. Rev A – 01/06/2021
Mtr2 r
Olled
-s
teel
56c/56hc-f
raMe
s
ingle
-P
hase
M
OtOrs
f
eatures
and
s
PecificatiOns
(
cOntinued
)
P
erfOrMance
d
ata
– r
Olled
-s
teel
56c-f
raMe
1-P
hase
M
OtOr
Performance Data – Single-Phase 56C/56HC-Frame Motors
(230V / 60Hz data except as indicated)
Part Number
HP
F.L.
RPM
Current @ 115V/230V
(Amps)
Torque (lb·ft)
F.L. Ef
ficiency (%)
F.L. P
ow
er F
act
or
Rotor
Inertia
(lb·ft
2
)
@
60Hz (50Hz)
230V
No
Load
Full Load
Locked
Rotor
Full
Load
Locked
Rotor
Break
down
1800 RPM
MTR2-P33-1AB18
1/3
(1/4)
1725
(1425)
2�05
5�2 / 2�6
33 / 16
1�01
3�54
2�57
63�0
0�58
0�048
MTR2-P50-1AB18
1/2
(1/3)
2�74
7�2 / 3�6
44 / 21
1�49
5�09
3�54
64�5
0�68
0�059
MTR2-P75-1AB18
3/4
(1/2)
3�14
10�0 / 5�0
62 / 30
2�26
7�06
5�16
67�0
0�71
0�074
MTR2-001-1AB18
1
(3/4)
4�39
13�0 / 6�5
80 / 40
3�03
9�30
8�23
70�0
0�69
0�095
MTR2-1P5-1AB18
1-1/2
(1)
5�23
14�5 / 7�3
110 / 55
4�46
8�70
10�45
77�0
0�84
0�095
MTR2-002-1AB18
2
(1-1/2)
8�07
19�6 / 9�8
152 / 76
6�06
12�17
13�81
79�0
0�82
0�121
3600 RPM
MTR2-P33-1AB36
1/3
(1/4)
3450
(2850)
2�14
5�4 / 2�7
37 / 19
0�50
2�18
1�96
59�5
0�72
0�031
MTR2-P50-1AB36
1/2
(1/3)
2�23
6�5 / 3�3
47 / 23
0�74
2�59
2�42
63�0
0�74
0�034
MTR2-P75-1AB36
3/4
(1/2)
2�82
9�2 / 4�6
66 / 33
1�12
4�62
3�44
66�5
0�78
0�041
MTR2-001-1AB36
1
(3/4)
3�04
11�5 / 5�8
82 / 41
1�50
4�48
3�83
69�5
0�80
0�047
MTR2-1P5-1AB36
1-1/2
(1)
3�90
13�0 / 6�5
109 / 55
2�21
3�22
5�08
77�0
0�94
0�047
MTR2-002-1AB36
2
(1-1/2)
4�51
17�0 / 8�5
131 / 65
3�02
4�45
6�82
79�5
0�94
0�060