AC ratings

Hi, Does any one know where to find the full listing of all the IEC category descriptions for contactor ratings. ie AC1 AC3 AC21 etc

Regards Alan Case

The following link should provide some of the information that you are looking for. It has information on both AC and DC contactors

http://www.sea.siemens.com/contrlbu/upld/files/p16.pdf

AC-1

Non-inductive or slightly inductive loads (resistive loads) such as resistance furnaces.

AC-2

Slip-ring motors, starting, plugging (stopping or reversing the motor while running).

AC-3

Squirrel cage (AC Induction) motors, starting, switching off motor while running.

AC-4

Squirrel cage (AC Induction) motors, plugging, jogging, inching.


DC-1

Non-inductive or slightly inductive loads (resistive loads) such as resistance furnaces.

DC-2

Shunt motors, starting, switching off motors while running.

DC-3

Shunt motors, starting, plugging, jogging, inching.

DC-4

Series motors, starting, switching off motors while running.

DC-5

Series motors, starting, plugging, jogging, inching.

If need more please let me know. I know I still owe you a better schematic....minor email problems

Thanks Ron. If you have the full list I would like to see it and a lot of other people probably would to as I think I have seen an AC23 and an AC45.
Regards Alan