Contactor (A-A)

Use and application of A-series AC contactor. (from the contact listed below) 50Hz-60Hz mainly for the exchange to determine the amount of voltage to 690V. Rated current to 1650A power system for frequent access and breaking circuit, and control of electrical use.

Also with the appropriate thermal overload relay composed of electromagnetic starter, a possible overload protection circuit, but also with the circuit breakers. A-OS Switch fuse Group portfolio.

A normal working conditions and conditions of installation, not more than 2000 meters above sea level;
B higher than the ambient air temperature of not less than 5 C and +40 C;
C air temperature +40 relative should not exceed 50% at low temperature can be higher relative humidity, Wetlands in the average temperature of 25 C when the average maximum relative humidity was 90%. And consider changes in temperature on the product Frost;
D grade for the level of pollution;
E installed category III;
F, and the installation of the vertical gradient is less than sign 5 C;

G, should have no significant change to the installation site, the impact and vibration. Structural characteristics:

A contactor for the opening ceremony, contact the two breakpoints, straight-action agencies;
B contactor often come with three pairs of main contact, often come up with four pairs, four pairs of regular closed auxiliary contact.

C contactor in addition to the installation of screws, 35mm and 75mm can be used to install standard-sized track. Use categories:

A, the main circuit type contactors use categories for the use of AC-3 circuit. Control can also reduce the capacity for decreasing the use of appropriate categories;
B The auxiliary circuit used AC-15 category or categories for the use of auxiliary circuit DC-13 detailed information