简要说明：SQN30.111A3500西门子电动执行机构，用于驱动燃气风门，空气风门及其他辅助设备 运行时间：4.5S-30S，齿轮离合，内部位置指示，便于调整的终端及辅助开关 SQN31.101A2700

SQN3.西门子伺服电机
.SQN30.111A3500 电动执行机构，用于驱动燃气风门，空气风门及其他辅助设备
型号；

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