diff --git a/intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java b/intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java
index 2e1dd2a..f96edac 100644
--- a/intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java
+++ b/intc-modules/intc-iot/src/main/java/com/intc/iot/controller/IotController.java
@@ -1043,7 +1043,7 @@ public class IotController extends BaseController {
             // 如果是三相380V四线，设置输出电压
             if (bo.getInputVoltage() == 4) {
                 for (int i = 1; i <= 4; i++) {
-                    properties.put("Switch" + i + "_volt", 380);
+                    properties.put("Switch" + i + "_volt", 220);
                 }
             }