6GK7443-1BX00-0XE0

屏蔽地：一般为防止静电、磁场感应而设置的外壳或金属丝网。通过专门的铜导线将其与地壳连接。

（3）交流地和保护地：交流供电电源的N线，通常它是产生噪声的主要地方。而保护地一般将机器设备外壳或设备内独立器件的外壳接地．用以保护人身安全和防护设备漏电。交流电源在传输时，在相当一段间隔的电源导线上。会有几mV、甚至几V的电压，而低电平信号传输要求电路电平为零。为防止交流电对低电平信号的干扰．在直流信号的导线上要加隔离屏蔽：不允许信号源与交流电共用一根地线：各个接地点通过接地铜牌连接到一起。屏蔽地、保护地不能与电源地、信号地和其他地扭在一起。只能各自独立地接到接地铜牌上。为减少信号的电容耦合噪声，可采用多种屏蔽措施。对于电场屏蔽的分布电容问题，通过将屏蔽地接入大地可解决。对于纯防磁的部位，例如强磁铁、变压器、大电机的磁场耦合．可采用高导磁材料作外罩．将外罩接入大地来屏蔽。 

大甩卖好价格产品优势供应！需要联系！
 AB  1746 1747 1756 1770 1771 1785  
 GE  IC693，IC697, IC698
 施耐德140系列CPU PLC
西门子：S7-200  S7-300
大甩卖好价格产品优势供应！需要联系！
 AB  1746 1747 1756 1770 1771 1785  
 GE  IC693，IC697, IC698
 施耐德140系列CPU PLC
西门子：S7-200  S7-300

框架接口模块3500/22-01-01-00
键相器模块3500/25-01-01-00
3500/42-01-00  
3500/15-01-00-00 
3500/15-01-02-00 
3500/15-02-00-00 
3500/15-02-02-00 
3500/15-02-02-01 
3500/15-03-03-00 
3500/15-04-00-00 
3500/20-01-01-00 
3500/20-01-02-00 
3500/20-01-02-01 

Ircon Modline 8000series 800-2,200F, Infrared Meter

Siemens FBSXP, Intermediate Support & Cover New 

Welding Gun Torch mount MOTOMAN 130550-1 NEW

Bristolpressor L1NB262EBCB, 700609-02-0307 

Klockner-Moeller NZMH9-250, w/ ZM9a-200-NA trip, 250A,

Siemens TI, 500-5029, Dualm Port, New 

Texas Instruments 5TI-1032-1, Sequencer, REBUILT

Parametrics Parat G01000A00 AC DRIVE Repaired

Texas Instruments 5TI-1032-2, Sequencer, REBUILT

Texas Instruments 500-5024A Servo Axis Controller NEW

Siemens Simatic 6ES5 304-3UA12, Interface Module

Modicon AS-P451-622 remote I/O, MA-P450 Power supply

GE AC1364R plug 200A, 480/600v

Donaldson 8PP-36773-00 Checker Board NEW

Motoman board# 471920-1 Low pass filter for-ARC NEW

Square D PQ4203 30A, 240V Plug, I Line *NEW*

Square D NQOD424L100CU 100A panelboard interior NEW

Allen-Bradley 8000 MBA Module 905981-05 Rev A

GE 300 Line size #3 Motor starter CR306E1 XAAA, NEW

Allen-Bradley 8000-GA circuit board 30 day return 

Allen-Bradley 8000-IOC circuit board 30 day return 

Allen-Bradley 8000-IOA circuit board 30 day return 



Hoffman Specialty 400562 Thermostatic Regulator NEW

Hyde Park SM572B-100 & cable AC105 Ultrasonic sensorNEW


Square D Plate Resistor Tab WELD500-D NEW in BOX

Square D Plate Resistor Tab WELD72-D NEW in BOX

Square D Plate Resistor Tab WELD280-D NEW in BOX

Square D Plate Resistor Tab WELD120-D NEW in BOX