SMC電磁閥可使用的電源電壓也比較廣泛，常見的有直流12V、24V；交流110V、220V，還有100V、200V等，此外SMC還可定制電磁閥的使用電壓。

smc電磁閥@smc氣缸

SMC電磁閥可使用的電源電壓也比較廣泛，常見的有直流12V、24V；交流110V、220V，還有100V、200V等，此外SMC還可定制電磁閥的使用電壓。交流電磁閥有蜂鳴聲，行程大，吸力大。直流電磁閥不存在蜂鳴聲，行程大時，吸力很小，即啟動力小。交流電磁閥氣動電流大，有時是保持電流的10倍以上，若動鐵心被卡住，啟動電流持續流過，線圈發熱厲害，甚至被燒毀。交流電磁閥不宜頻繁通斷。壽命不及直流電磁閥長。直流電磁閥的電流取決于線圈電阻，與行程大小無關。故動鐵心卡住時不會燒毀線圈。直流電磁鐵可頻繁通斷，工作安全可靠。但錯節高電壓，流過電流過大時，仍會燒毀線圈。

smc電磁閥@smc氣缸

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