Two-wire three-wire control:The power cord is a live wire (positive pole) and a neutral wire (negative pole), and the line common terminal bi-color is connected to the neutral wire (negative pole);Connect the live wire (positive pole) to the blue valve open wire to open the valve;The live wire (positive pole) is connected to the brown valve close wire to close the valve; The rotary ball valve is forged from high quality brass, durable and reliable.The integrated actuator s automatically stops when the valve is opened or closed, which is deterministic and energy-saving.The product takes up little outdoor space and can be installed near a wall.Precise structure, airtight , no leakage.Mainly used in air conditioning, general power supply and water control systems. This product is made of A brass valve and actuator, the actuator is driven by a synchronous motor and has a built-in limit switch that de-energizes the valve when opened or closed. It is applicable for fan coil and air conditioner water control system. Features:1. The ball valve is forged from high quality brass, durable and reliable.2. The built-in actuator shuts off when the valve is opened or closed, which is safe and energy efficient.3. The outdoor space occupied by the product is very small and can be installed close to the wall.4. Precise structure, airtight, no leakage.5. Mainly used for air conditioner, fan coil and water control system. Product Specification:Material Main: Brass Material Applicable Temperature: -10CT120CProduct Specification: DN15Rated pressure: 1.6 MPaMotor: 4N single layer motorWeight: 351gInterface Specification: G1/2Working medium: water, oil, non-corrosive and non-flammable gas Package contains:Three-wire electric ball valve two-way DN15 4N*1PCS