Sprecher+Schuh PCS-037-480V-024 是一款由瑞士工业控制品牌 Sprecher+Schuh 生产的三相软启动器，专为电动机的平滑启动与运行保护设计，适用于工业自动化、泵阀控制、风机系统等对电机启停性能要求较高的场景。
一、核心功能与技术参数型号解析：
PCS-037-480V-024：表示该软启动器额定电流为 37A，工作电压为 480V AC，控制电源为 24V DC/AC，适用于中等功率电机（约 18.5–22 kW）的启动控制。
主电路特性：
输入电压范围：380–480 V AC，50/60 Hz；
大允许电流：37 A，支持短时过载能力（通常为 1.5 倍额定电流，60 秒）；
采用反并联晶闸管（SCR）结构，实现电压斜坡软启动，降低启动冲击电流至额定值的 3–4 倍以下。
控制功能：
启动模式：可调电压斜坡启动、限流启动；
停止模式：软停、自由停、制动停（可选）；
内置旁路接触器：启动完成后自动切换至主回路，减少晶闸管发热，延长寿命；
过载保护：具备电子热模拟保护，可设定脱扣等级（Class 5–20）；
故障诊断：LED 指示灯显示过流、过温、缺相、晶闸管故障等状态。
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