ABB is a technology-based provider of power and automation products, systems, solutions and services, helping its customers become more productive and energy efficient while reducing environmental impact.

Single Phase motors
ABB's Single Phase Squirrel cage general purpose motor is designed for use in general industry, meeting the demands of standard applications for OEM's. The motors have high build quality, are available with all the features needed by the OEM market and can be modified to meet most specifications.

Description & Applications

In many respects single phase motors have the same properties as three phase motors, and mechanically they meet the same standards. There are several types of single phase motors (CSR, PSC and PSC-reg.).

CSR Single phase motor with attached run capacitor, starting capacitor and electronic start relay mounted in the terminal box. The electronic start relay connects the starting capacitor instantly when the motor starts, and cuts out when the motor has reached its break-down torque. The connec-tion time is limited to max. 2 sec., after which the starting capacitor is disconnected, regardless of whether the motor has reached its breakdown torque. The starter relay cannot reconnect until the mains voltage to the motor has been disconnected; this protects the starting capacitor and ensures that the motor can be protected with a thermal motor line circuit breaker.

The CSR motor with a starting torque of 140 - 160% is suitable for applications that require a high starting torque, such as compressors, hydraulic pumps that start with back pressure and centrifugal pumps where the shaft seal requires a high breakaway torque.

PSC - run capacitor single-phase motor with attached run capacitor. The starting torque is 30 - 70%, which makes this motor particularly suitable for applications with low starting torque requirements, such as fans, circular saws, polishing machines and centrifugal pumps where the shaft seal does not require a high breakaway torque.

PSC - for speed regulation. The motorís speed can be regulated by changing the voltage to the motor (twin-cable regulation) or by only changing the voltage to the circuit winding (three-cable regulation). The best regulation and the minimum loss in the motor is achieved only by changing the voltage to the circuit winding.

Silent Features:
  • High output - more power from the frame, saving space, reduced weight and lowering purchase cost
  • Wide voltage range
  • Low noise levels
  • Availability - world-wide sales network, large base of stocked motors, extensive modification possibilities
  • Technical and application support
  • Service and support
  • Low voltage AC induction single phase motors with aluminum frame, standard motors' dimension

Technical Specifications

Output Power0.065 to 2.2 kW
Frame sizeIEC 56 to 100
Number of poles2 to 8
VoltagesAll commonly used voltages
Frequency50 or 60 Hz
ProtectionIP 55