描述
I/O单元实际上是PLC与被控对象间传递输入输出信号的接口部件。I/O单元有良好的电隔离和滤波作用。接到PLC输入接口的输入器件是各种开关、按钮、传感器等。PLC的各输出控制器件往往是电磁阀、接触器、继电器，而继电器有交流和直流型，高电压型和低电压型，电压型和电流型。
CUTLER HAMMER 3 POLE 600 VOLT 225 AMP HFD3225 HFD3225L
CUTLER HAMMER 92-01797-04 USPP 920179704
CUTLER HAMMER 1575THX USPP 1575THX
Cutler Hammer HKD3400F KES3400LSI circuit breaker 400a
CUTLER HAMMER 92-018-00-09 USPP 920180009
CUTLER-HAMMER MDL3800F BREAKER 800AMP
CUTLER HAMMER 92-01758-09 USPP 920175809
CUTLER HAMMER 1575 USPP 1575
CUTLER HAMMER A201K3CA NSPP A201K3CA
NEW IN BOX CUTLER HAMMER CH HMCP400W5C
NEW IN BOX CUTLER HAMMER CH HMCP400X5
NEW IN BOX CUTLER HAMMER CH HMCP400X5C
CUTLER HAMMER A210M1CAC NSFP A210M1CAC
