描述
PLC内部输入电路作用是将PLC外部电路（如行程开关、按钮、传感器等）提供的符合PLC输入电路要求的电压信号，通过光电耦合电路送至PLC内部电路。输入电路通常以光电隔离和阻容滤波的方式提高抗干扰能力，输入响应时间一般在0.1~15ms之间。根据输入信号形式的不同，可分为模拟量I/O单元、数字量I/O单元两大类。根据输入单元形式的不同，可分为基本I/O单元、扩展I/O单元两大类。
Cutler-Hammer Industrial Breaker 600 Amp 3pole L630E
Cutler-Hammer Industrial Breaker 600 Amp 3pole L630
CUTLER HAMMER SV9F30AJ5M0A00 USPP SV9F30AJ5M0A00
CUTLER HAMMER 92-00240-00 USPP 920024000
electric supply lot cutler hammer and more
LOT OF ELECTRIC SUPPLIES ALL TOGETHER $1200
CUTLER HAMMER HFDE316033 6606C22G05 CIRCUIT BREAKER
Cutler-Hammer C10JN3 Size 6 contactor series CCI 540amp
Cutler Hammer Size 2 Starter M# ECN2228AAF 84-28757-9
CUTLER-HAMMER VACUUM CONTACTOR V201K4CJ
CUTLER HAMMER 112.5 KVA TRANSFORMER 480 DELTA 480 / 277
Cutler Hammer WH JDC3250F JT3225T JDC3225 225 Amp w/Aux
Cutler Hammer Surge Protector Cat# CPS120208YAF Used
Cutler Hammer Heavy Duty Auxiliary Power Safety Switch
Eaton / Cutler Hammer 112.5 kVA Dry Transformer
KT-13 K-factor suitable for non-sinusoidal current load
