AC Contactor Accessories

As supporting components for a comprehensive control system, the series of AC Contactor Accessories encompasses a range of devices designed to complement and enhance the functionality of primary contactors. These product are integral to systems operating in alternating current circuits with a frequency of 50Hz and a rated operational voltage up to 660V, supporting circuits with currents up to 95A (3-phase ≤440V). While their core function is to aid in the remote making and breaking of circuits, these AC Contactor Accessories also play a vital role in setups requiring frequent control of AC motors. Under appropriately derated current conditions (utilization category AC-4), they further support challenging operations like plugging and reversing of squirrel-cage motors. When these product are used in conjunction with devices like thermal overload relays, they contribute to a robust protective scheme that shields circuits from the detrimental effects of operational overloads. To guarantee the compatibility and reliable performance of these accessories alongside main contactors, the following environmental and installation standards must be met: a) Surrounding air temperature should be within the range of ≥-5°C to +40°C, with a 24-hour average ≤+35°C. b) The installation altitude must not exceed 2000m. c) At an air temperature of +40°C, the relative humidity should be ≤50%. The average minimum temperature of the wettest month is ≤+25°C, and its average maximum relative humidity is ≤90%. d) The operational environment is pollution degree 3. e) Installation category III applies. f) The installation site must be free from significant shaking, shock, or vibration. g) The mounting orientation should not exceed a 5° tilt from vertical. Designed for seamless integration and extended service life, this family of AC Contactor Accessories provides the necessary flexibility and reliability to build customized and resilient electrical control systems for diverse industrial needs.

External shape and installation dimensions