Chapter 1: Getting Started
Page 1–9
IronHorse® General Purpose AC Motors User Manual – 10th Ed. Rev A – 01/06/2021
Mtr2
and
MtrP r
Olled
-s
teel
56c/56hc-f
raMe
t
hree
-P
hase
M
OtOrs
– f
eatures
and
s
PecificatiOns
IronHorse
®
rolled steel 56C/56HC-frame* three-phase motors
available ratings are from 1/3 hp to 3 hp. All models have a
TEFC frame, cast aluminum end bell and removable mounting
bases.
s
PecificatiOns
– r
Olled
-s
teel
56c/56hc-f
raMe
3-P
hase
M
OtOr
– 1800 & 3600
rPM
Motor Specifications – MTR/MTR2 & MTRP 3-Phase 56C/56HC-Frame Motors –
1800 & 3600 rpm
Part
Number
HP
Base
RPM Voltage
Ser
vic
e
Fact
or
NEMA Design
NEMA Frame
Housing
F.L. Amps
@
230V/460V
Approx
Weight
(lb)
1800 RPM
MTR2-P33-3BD18
1/3
1800
230/460
1�15
B
56C
flange mount
(MTRP = 56HC)
TEFC rolled
steel frame
Cast
aluminum
end bell
F1 conduit
box location
1�4 / 0�7
18
MTR2-P50-3BD18
1/2
1�9 / 0�95
19
MTR2-P75-3BD18
3/4
2�6 / 1�3
22
MTRP-001-3BD18
1
208-
230/460
3�2 / 1�6
35
MTRP-1P5-3BD18
1-1/2
4�5 / 2�3
43
MTRP-002-3BD18
2
6�0 / 3�0
49
3600 RPM
MTR2-P33-3BD36
1/3
3600
230/460
1�15
B
56C
flange mount
(MTRP = 56HC)
TEFC rolled
steel frame
Cast
aluminum
end bell
F1 conduit
box location
1�3 / 0�65
18
MTR2-P50-3BD36
1/2
1�7 / 0�85
19
MTR2-P75-3BD36
3/4
2�4 / 1�2
21
MTRP-001-3BD36
1
208-
230/460
3�0 / 1�50
23
MTRP-1P5-3BD36
1-1/2
4�0 / 2�0
31
MTRP-002-3BD36
2
5�2 / 2�6
33
MTRP-003-3BD36
3
7�4 / 3�7
39
Note: Please review the AutomationDirect Terms & Conditions for warranty and service on this product.
NOTE: *56HC are suitable for 56C C-face mounting or 56, 143T, or 145T frame foot mounting dimensions.