Product Manual

Contents
I. Introduction..................................5
Electric Motor History and Principles
II. General Motor Replacement Guidelines ............8
III. Major Motor Types ...........................15
AC Single Phase
AC Polyphase
Direct Current (DC)
Gearmotors
Brakemotors
Motors For Precise Motor Control
Permanent Magnet (PMAC) Motors
Benefits of PMAC Motor
IV. Mechanical Considerations .....................22
Enclosures and Environment
NEMA Frame/Shaft Sizes
NEMA Frame Suffixes
Frame Prefixes
Mounting
Types of Mounts
Application Mounting
Motor Guidelines for Belted Applications
V. Electrical Characteristics
and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Voltage
Phase
Current (Amps)
Hertz/Frequency
Horsepower
Speeds
Insulation Class
Service Factor
Capacitors
Efficiency
Encoders
Thermal Protection (Overload)
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