Electric Motor Control Basics - Book - Page 14
Figure 3: Double Break Contactors
Industrial Control Basics: Part 1, Contactors
The example below is a typical IEC Contactor and Thermal Overload
Industrial Control
Basics:
Part 1, Contactors
Industrial Control
Basics: Part 2,
Overload Relays
Industrial Control
Basics: Part 3,
Starters
The Benefits of Type E/F
Motor Protection
Circuit Breakers
Applications
Lighting Control
Contactors are often used to provide central control of large lighting installations, such
as an office building or retail building. To reduce power consumption in the contactor
coils, latching contactors are used, which have two operating coils. One coil, momentarily energized, closes the power circuit contacts, which are then mechanically held
closed; the second coil opens the contacts.
Basic Pump Control:
Three Phase DOL Starter
Control of an Electric Pump
Applying Motor Control
in a Wastewater
Application
NEMA vs IEC Motor
Controls
Understanding
IP Ratings
14
