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Manual – Gear Units and Gearmotors
Electrical characteristics (→ GM, → MM)
Project Planning for AC Motors
Standard
connections 60 Hz
motors
60 Hz motor on
50 Hz supply
system
The rated data of motors designed for 60 Hz supply systems are slightly different when
these motors are operated on 50 Hz supply systems.
Example: NEMA C-motor, designed for the USA, operation on a 50 Hz supply system:
Motors for USA
and Canada
Motors for USA and Canada are designed according to NEMA or CSA regulations.
Single-speed motors in NEMA or CSA design are registered with Underwriters Labora-
tories (UL). The following voltage assignments (60 Hz) are customary in the USA and
Canada:
The motor voltage may deviate up to ±10 % from the rated voltage. This deviation
corresponds to tolerance B (→ page 86).
In the USA, 230/460 V
AC
/ 60 Hz motors are usually used
Motors
Motor size
100...132S 132M...225 250...280
Motor voltage
2, 4 and 6-pole motors,
applies to the voltage range
240...266/
415..0.460 V
AC
Δ/댴
240...266/415..0.460 V
AC
Δ/댴
415..0.460 V
AC
Δ
Single-speed
266/460 V
AC
Δ/댴
220/380 V
AC
Δ/댴
330/575 V
AC
Δ/댴
200/400 V
AC
댴댴/댴
220/440 V
AC
댴댴/댴
230/460 V
AC
댴댴/댴
Multi-speed, single winding 460 V
AC
Δ/댴댴
Multi-speed, separate winding 460 V
AC
댴 / 댴
Brake voltage
2, 4 and 6-pole motors,
applies to the voltage range
240..0.266 V
AC
415..0.460 V
AC
Standard voltages 24 V
DC
/ 230 V
AC
/ 266 V
AC
/ 460 V
AC
Forced cooling fan voltage
Standard voltage VR 24 V
DC
--
Voltage range VS
1 × 220..0.266 V
AC
1 x 115 V
--
Voltage range V -
3 × 380...415 V
AC
3 x 230 V
AC
3 x 460 V
AC
3 × 346...500 V
AC
No. of
poles
Synchronous speed n
syn
at 60 Hz [1/min] Connection
2 3600 Δ/
댴; 댴댴 / 댴
4 1800 Δ/댴; 댴댴 / 댴
6 1200 Δ/댴; 댴댴 / 댴
8/4 900/1800 Δ/댴댴 single winding
8/2 900/3600
댴 / 댴 separate winding
Motor voltage
at 60 Hz (USA)
Motor connection
U [V] at 50
Hz
Changed rated data
n
N
P
N
M
N
M
A
/M
N
230/460 V
AC
댴댴 / 댴
댴
400 -17% -17% 0% 0%
Rated voltage of the supply power Rated voltage of the motor
USA
208 V 200 V
240 V 230 V
480 V 460 V
Canada 600 V 575 V