ABB Series A Contactors are primarily used for switching 3-phase motors and controlling power circuits of up to 690V ac or 440V dc. They are also suitable for many other applications such as insulation, switching capacitors and in lighting systems.
The A series contactors has a variety of 2, 3 or 4 pole contactors available in a wide range of coil voltages and current ratings.

Easy Maintenance of Contacts and Coil Inspection
Touch Safe Design
Switches resistive three-phase current loads (usage category AC1)
Switches cage rotor motors (usage category AC3)
Add-on auxiliary contact blocks and thermal overload relays available separately

CSA, UL

Manage your high-current circuits with this contactor from ABB. It can switch currents up to 30A to give you convenient control over large electrical loads. With response times between 4 and 26ms, the device quickly reacts to inputs and delivers efficient appliance management. The three poles work with three-phase voltages for compatibility with common industrial power supplies. A built-in auxiliary contact means the contactor signals your control device when your equipment switches, letting you remotely monitor your hardware for efficient operations.

• Mechanical lifespan of 10 million cycles for longevity
• Mounts on an industry-standard DIN rail for easy installation in existing control cabinets
• Maximum operating frequency of 1,200 cycles an hour to suit demanding applications
• Broad operating temperature range between -40°C and +55°C for use in harsh industrial environments

• Electric motors
• Lighting systems
• Automotive industry

Contactors are a special kind of relay designed to quickly control circuits with large current demands, typically meaning loads rated 10A and higher.