442-240

产品型号：442-240 产品名称：442-240 产品分类：Alternating Relays 品牌：Time Mark Corporation（美国时间标记公司） 产品简介：The Model 442 Multi-Stage Alternator is designed to control the operating sequence of multi-stage motor/pumping systems. It can also be used to maintain the desired level of pressure-on air compressor systems. Four motor select DIP switches located on the front panel allow the alternator to control a single-motor/pump, two-motor/pump, three-motor/pump or four-motor/pump system. The Model 442 will assure that only the necessary motors/pumps are operating, and that the run time for each motor/pump is approximately equal. Motors are sequenced Sequence-On, Simultaneous-Off . If the motor/pumping demand requires only one motor/pump at a time, the alternator will start the next motor/pump in sequence each time an input switch is closed. Input switches may be float switches, pressure switches, flow switches, etc. , as required by the application. Potential uses for the Model 442 include water supply systems, sewage disposal plant systems, storage tank filling systems, air compressor systems, irrigation and water recycling systems. 技术参数：Contacts: SPST; Mount: Surface Mount; Voltage Range: 240VAC 应用领域：适用于双泵交替运行、负载均衡、备用泵自动切换、空调压缩机交替控制等需要交替运行的场景 产品特点：美国原装进口，品质可靠；DIN导轨安装，方便集成；LED状态指示，直观易读；宽电压范围，适应性强；工业级设计，经久耐用