AC Contactor Controller

The series of AC Contactor Controllers encompasses the core switching units that drive control logic in electrical systems. These products are suitable for alternating current circuits with a frequency of 50Hz and a rated operational voltage up to 660V, managing currents up to 95A (3-phase ≤440V). Their primary role is to execute the remote making and breaking of power circuits based on control signals. They are also extensively used in applications requiring the frequent starting and stopping of AC motors. When operated within the parameters of utilization category AC-4 (at a reduced current), these AC Contactor Controllers can handle more strenuous operations such as plugging and reverse starting of squirrel-cage motors. For a protected control scheme, these products are designed to work in unison with thermal overload relays. This combination ensures that the circuit is disconnected in the event of a persistent overload, providing essential protection for both the controller and the connected load. To maintain the precision and reliability of the AC Contactor Controller, the following installation and operational conditions must be strictly observed: a) Ambient air temperature: upper limit +40°C, 24h average ≤+35°C, lower limit ≥-5°C. b) Altitude: ≤2000m. c) Humidity: at +40°C, relative humidity ≤50%; wettest month average minimum temperature ≤+25°C, average maximum relative humidity ≤90%. d) Pollution degree: 3. e) Installation category: III. f) Shock/Vibration: Install in a location without significant shaking, impact, or vibration. g) Mounting: The inclination of the mounting surface relative to vertical shall not exceed 5°. As the executive component in a control loop, the product series is synonymous with dependable performance, making it a fundamental building block for safe and efficient electrical control systems across various industries.

External shape and installation dimensions