Depending on winding design and other features, there are many different types of AC motors and gearmotors. This matrix was developed to help you better understand the capabilities, advantages, and disadvantages of the numerous AC motors and gearmotors offered by Bodine Electric Company.

Motor
winding
~
Speed tolerance
Typical
rated speeds at 60Hz
Start/Stop
frequency
Coast
without brake
Coast
with dynamic braking
Starting
torque (% of rated torque)
Pros Cons
Split Phase
(SI)
+/-3% 1700-1750
(4-pole)
3450
(2-pole)
Up to 6
per hour
20 to 600
revolutions
0.5 to 6 revolutions 175%
and up
No capacitors Switch
life 50k to 250k starts
Permanent
Split Capacitor
(CI)
+/-3% 1700-1750
(4-pole)3450
(2-pole)
Up to 10
per minute
20 to 600
revolutions
0.5 to 6 revolutions 90 to
100%
Very reliable,
Low starting current
Low
starting
torque
Three Phase
(PP, Non-synchronous)
+/-3% 1700-1750
(4-pole)3450
(2-pole)
Up to 10
per minute
20 to 600
revolutions
0.5 to 6 revolutions 200 to
400%
Most reliable
and efficient, No cap/switch
Requires
three-phase power supply
Reluctance
Synchronous Split Phase (SY)
near 0% 1800
(4-pole)3600
(2-pole)
Up to 6
per hour
20 to 600
revolutions
0.5 to 6 revolutions 110 to
150%
Same as
split-phase, plus exact speed
Switch
life 50k to 250k starts
Reluctance
Synchronous Capacitor (YC)
near 0% 1800
(4-pole)3600
(2-pole)
Up to 10
per minute
20 to 600
revolutions
0.5 to 6 revolutions 80 to
100%
Exact speed,
Very reliable, Low starting current
Low starting
torque
Reluctance
Synchronous Three Phase (YP)
near 0% 1800
(4-pole)3600
(2-pole)
Up to 10
per minute
20 to 600
revolutions
0.5 to 6 revolutions 200 to
500%
Exact speed,
Most reliable and efficient, No cap/switch
Requires
three-phase power supply
Brushless
DC (BLDC)
near 0% 2500 Up to 10
per minute
20 to 600
revolutions
0.5 to 6 revolutions 175%
and up
Exact speed
control
Requires
a control board

For full model specs or pricing call 800-257-8240

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