PLC是一种用于工业生产自动化控制的设备，一般不需要采取什么措施，就可以直接在工业环境中使用。然而，尽管有如上所述的可靠性较高，抗干扰能力较强，但当生产环境过于恶劣，电磁干扰特别强烈，或安装使用不当，就可能造成程序错误或运算错误，从而产生误输入并引起误输出，这将会造成设备的失控和误动作，从而不能保证PLC的正常运行。要提高PLC控制系统可靠性，一方面要求PLC生产厂家提高设备的抗干扰能力；另一方面，要求设计、安装和使用维护中引起高度重视，多方配合才能完善解决问题，有效地增强系统的抗干扰性能。因此在使用中应注意以下问题。

   1.PLC工作环境

    (1)温度：PLC要求环境温度在0～55℃，安装时不能放在发热量大的元件下面，四周通风散热的空间应足够大。

    (2)湿度：为了保证PLC的绝缘性能，空气的相对湿度应小于85％(无凝露)。

    (3)震动：应使PLC远离强烈的震动源，防止振动频率为10～55Hz的频繁或连续振动。当使用环境不可避免震动时，必须采取减震措施，如采用减震胶。

    (4)空气：避免有腐蚀和易燃的气体，例如化学的酸碱等。对于空气中有较多粉尘或腐蚀性气体的环境，可将PLC安装在封闭性较好的控制室或控制柜中。例如电厂的干排渣、干除灰等，在基建后期增加了封闭小屋。

    (5)电源：PLC对于电源线带来的干扰具有一定的抵制能力。在可靠性要求很高或电源干扰特别严重的环境中，可以安装一台带屏蔽层的隔离变压器，以减少设备与地之间的干扰。一般PLC都由直流24V输出提供给输入端，当输入端使用外接直流电源时，应选用直流稳压电源。因为普通的整流滤波电源，由于纹波的影响，容易使PLC接收到错误信息。

    2.plc控制系统中干扰及其来源

    现场电磁干扰是PLC控制系统中最常见也是最易影响系统可靠性的因素之一。

    (1)干扰源及一般分类

    影响PLC控制系统的干扰源，大都产生在电流或电压剧烈变化的部位，其原因是电流改变产生磁场，对设备产生电磁辐射；磁场改变产生电流，电磁高速产生电磁波。通常电磁干扰按干扰模式不同，分为共模干扰和差模干扰。共模干扰是信号对地的电位差，主要由电网串入、地电位差及空间电磁辐射在信号线上感应的共态(同方向)电压叠加所形成。共模电压通过不对称电路可转换成差模电压，直接影响测控信号，(来源：http://www.dqjsw.com.cn）造成元器件损坏(这就是一些系统I／O模件损坏率较高的主要原因)，这种共模干扰可为直流，亦可为交流。差模干扰是指作用于信号两极间的干扰电压，主要由空间电磁场在信号间耦合感应及由不平衡电路转换共模干扰所形成的电压，这种干扰叠加在信号上，直接影响测量与控制精度。

    (2)PLC系统中干扰的主要来源及途径

    强电干扰：PLC系统的正常供电电源均由电网供电。由于电网覆盖范围广，它将受到所有空间电磁干扰而在线路上感应电压。尤其是电网内部的变化，刀开关操作浪涌、大型电力设备起停、交直流传动装置引起的谐波、电网短路暂态冲击等，都通过输电线路传到电源原边。

    柜内干扰：控制柜内的高压电器，大的电感性负载，混乱的布线都容易对PLC造成一定程度的干扰。

    来自信号线引入的干扰：与PLC控制系统连接的各类信号传输线，除了传输有效的各类信息之外，总会有外部干扰信号侵入。此干扰主要有两种途径：一是通过变送器供电电源或共用信号仪表的供电电源串入的电网干扰,这往往被忽视；二是信号线受空间电磁辐射感应的干扰，即信号线上的外部感应干扰，这是很严重的。由信号引入干扰会引起I／O信号工作异常和测量精度大大降低，严重时将引起元器件损伤。

    来自接地系统混乱时的干扰：接地是提高电子设备电磁兼容性(EMC)的有效手段之一。正确的接地，既能抑制电磁干扰的影响，又能抑制设备向外发出干扰；而错误的接地，反而会引入严重的干扰信号，使PLC系统将无法正常工作。

    来自PLC系统内部的干扰：主要由系统内部元器件及电路间的相互电磁辐射产生，如逻辑电路相互辐射及其对模拟电路的影响，模拟地与逻辑地的相互影响及元器件间的相互不匹配使用等。

    变频器干扰：一是变频器启动及运行过程中产生谐波对电网产生传导干扰，引起电网电压畸变，影响电网的供电质量；二是变频器的输出会产生较强的电磁辐射干扰，影响周边设备的正常工作。

    3.PLC主要抗干扰措施

    (1)电源的合理处理，抑制电网引入的干扰对于电源引入的电网干扰可以安装一台带屏蔽层的变比为1：1的隔离变压器，以减少设备与地之间的干扰，还可以在电源输入端串接LC滤波电路。

    (2)正确选择接地点，完善接地系统良好的接地是保证PLC可靠工作的重要条件，可以避免偶然发生的电压冲击危害。接地的目的通常有

    两个，其一为了安全，其二是为了抑制干扰。完善的接地系统是PLC控制系统抗电磁干扰的重要措施之一。

    PLC控制系统的地线包括系统地、屏蔽地、交流地和保护地等。接地系统混乱对PLC系统的干扰主要是各个接地点电位分布不均，(来源：http://www.dqjsw.com.cn）不同接地点间存在地电位差，引起地环路电流，影响系统正常工作。例如电缆屏蔽层必须一点接地，如果电缆屏蔽层两端A，B都接地，就存在地电位差，有电流流过屏蔽层，当发生异常状态如雷击时，地线电流将更大。

    此外，屏蔽层、接地线和大地有可能构成闭合环路，在变化磁场的作用下，屏蔽层内又会出现感应电流，通过屏蔽层与芯线之间的耦合，干扰信号回路。若系统地与其他接地处理混乱，所产生的地环流就可能在地线上产生不等电位分布，影响PLC内逻辑电路和模拟电路的正常工作。PLC工作的逻辑电压干扰容限较低，逻辑地电位的分布干扰容易影响PLC的逻辑运算和数据存储，造成数据混乱、程序跑飞或死机。模拟地电位的分布将导致测量精度下降，引起对信号测控的严重失真和误动作。

    安全地或电源接地：将电源线接地端和柜体连线接地为安全接地。如电源漏电或柜体带电，可从安全接地导入地下，不会对人造成伤害。

    系统接地：PLC控制器为了与所控的各个设备同电位而接地，叫系统接地。接地电阻值不得大于4Ω，一般需将PLC设备系统地和控制柜内开关电源负端接在一起，作为控制系统地。

    信号与屏蔽接地：一般要求信号线必须要有惟一的参考地即“单点接地”，屏蔽电缆遇到有可能产生传导干扰的场合，也要在就地或者控制室唯一接地，防止形成“地环路”。

信号源接地时，屏蔽层应在信号侧接地；不接地时，应在PLC侧接地；信号线中间有接头时，屏蔽

    层应牢固连接并进行绝缘处理，一定要避免多点接地；多个测点信号的屏蔽双绞线与多芯对绞总屏蔽电缆连接时，各屏蔽层应相互连接好，并经绝缘处理，选择适当的接地处单点接点。

    (3)对变频器干扰的抑制

    变频器的干扰处理一般有下面几种方式：加隔离变压器，主要是针对来自电源的传导干扰，可以将绝大部分的传导干扰阻隔在隔离变压器之前；使用滤波器，滤波器具有较强的抗于扰能力，还具有防止将设备本身的干扰传导给电源，有些还兼有尖峰电压吸收功能；使用输出电抗器，在变频器到电动机之间增加交流电抗器主要是减少变频器输出在能量传输过程中线路产生电磁辐射，影响其他设备正常工作。

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Cutler Hammer 1HD363NF Safety Disconnect Switch Type 1 600V 3P 100A ! NEW !

Cutler Hammer Dry Distribution Transformer S60G11576N !

CUTLER HAMMER EATON -- HEAVY DUTY SPECIAL PURPOSE CONTACTOR - 5 POLE DPCK5035AW

CUTLER HAMMER CIRCUIT BREAKER FRAME #JD3250F NEW 250AMP

Cutle Hammer 3P 200A Type HFD FREE SHIPPING

CUTLER HAMMER MOULDED CIRCUIT BREAKER CAT #HMCP100R3S NEW 100AMP

CUTLER HAMMER TYPE KT TRIP UNIT ONLY 2P 300A 600VAC MAX MODEL#KT2300T NEW

Eaton 10250T3614 Heavy Duty Pushbutton Station - Sealed In Package ! NEW !

Lot of 13 Cutler-Hammer 15 Amps 600 V. 2 Poles Circuit Braker

Cutler-Hammer EOPFJ24D Motor Operator for JG Series Eaton Circuit Breaker

CUTLER-HAMMER FD3020L 20A CIRCUIT BREAKER NEW!!! QUANTITY!!!

NEW EATON CURRENT LIMITING FUSE 150 AMPS PN#5ACLS-5R

EATON CB 3P FIXED SETTINGS, BOX TERMINAL 30AMP CAT# NZMB2-AF30-BT-NA

Eaton Cutler Hammer DH363UGK Safety Switch 600 VAC/250 VDC 3 Pole 100 Amp 91970

Cutler Hammer HMCP150U4 150A,3P,600VAC/250VDC,Motor Circuit Protector

***/LIKE NEW***  FDC3020S (600V, 3P, 20A, VISI-TRIP)  EATON / CUTLER HAMMER

***/LIKE NEW***  FDC3015S (600V, 3P, 15A, VISI-TRIP)  EATON / CUTLER HAMMER

CUTLER-HAMMER D60LA1 ADJUSTABLE AC CURRENT RELAY

Eaton Cutler-hammer Westinghouse FCL3100L Current Circuit Breaker 3P 480VAC 100A

Cutler Hammer FDB3100 Circuit Breaker 100amp 3-Pole ! NEW !

Cutler Hammer FDB3100L Circuit Breaker 100 Amp 3 Pole 600 Vac 14 KA ! NEW !

CUTLER-HAMMER E2F015EM E2 MINING CIRCUIT BREAKER 15A 3P 600VAC (3K3)

Cutler Hammer MCCB 160 Amp Triple Pole 160A Breaker Westinghouse Series C FWF...

Cutler Hammer HMCP250L5 Breaker 250 Amp 600VAC ! WOW !

Cutler Hammer HFD3090 HFD Circuit Breaker 90A 3Pole 600V ! WOW !

Cutler Hammer HKW3400F circuit breaker NEW 400 amp HKW70k

Eaton Cutler-Hammer 82410H002 Pneumatic Timer 1NO-1NC Switch 12963 New

NEW Cutler Hammer Electrical Enclosure Fusebox Switchboard  550x850x180mm

CUTLER HAMMER VISA BREAKER CAT# HFD3040S 3 POLE 600VAC/250VDC/40A NEW

CUTLER HAMMER LA-TRI-PAC TRIP UNIT CAT # LA3225PT 3 POLE 250AMP NEW

EATON CB 3P ADJUSTABLE, BOX TERMINAL 80AMP CAT# NZMN2-A80-BT-NA NEW

CUTLER HAMMER MOULDED CIRCUIT BREAKER CAT #HMCP100R3C NEW 100AMP

CUTLER-HAMMER EHD3100 CIRCUIT BREAKER 14K 100A 480V NEW

Cutler-Hammer 2018A40G01 Rectifier 125VAC ! NEW !

Eaton MEM Memshield 320Amps Circuit Breaker Incomer Switch 3 Pole Cutler Hammer

Cutler Hammer 4HD363NFW 100A, 600V, Non-Fusible, Disconnect Switch

Quantity 2 of Cutler-Hammer 508B012G01 Disconnect Primary 2000A

Quantity 2 of Cutler-Hammer 508B022G01 Disconnect Primary 1200A

Cutler Hammer HMCP050G2 Circuit Breaker 50A 600VAC/250VDC 3 Pole ! NEW !

Cutler-Hammer Cutler Hammer Leistungsschalter E125S 125Amp  EGS3125FFG  #OM-1348

Cutler Hammer IHD363 Heavy-Duty Safety Switch ! NEW !

Cutler Hammer ELHFD4100L Serie C Industrie- Trennschalter (R5S1.3)

Cutler Hammer ELHFD4100L Series C Industrial Circuit Breaker (R5S1.3)

Cutler Hammer E2FM3080 80 amp 1000volt mining circuit breaker

EATON CUTLER HAMMER 3P 225 AMP  SERIES C INDUSTRIAL CIRCUIT BREAKER , FWF3225L

Eaton Cutler-Hammer HMCPE100R3C - Motor Circuit Protector Circuit Breaker 100A

CUTLER HAMMER SWITCH BODY FUSIBLE (J) WITH TEST #C363UV60JT 60A/600V NEW

CUTLER HAMMER CIRCUIT BREAKER  15 AMPS / 480V CAT#EGB2015FFB NEW

Cutler Hammer Fan Cooling Kit: EMM18

EATON / CUTLER HAMMER FREEDOM SERIES 2100 TWIN MCC BUCKET C/W 1 DOOR (EMPTY)

CUTLER-HAMMER HMCP007C0C SER.C NEW! 3POLE 7A 600VAC 250VDC CIRCUIT BREAKER

EATON CUTLER HAMMER 250V DC / 10 AMPS / 4 POLES CONTROL RELAY #BFD44T  NEW

Cutler-Hammer FD3090 Circuit Breaker 3-Pole 90Amp 600VAC ! WOW !

Cutler Hammer KT3400T Thermal Magnetic Trip Unit 400Amps 3 Pole ! NEW !

Cutler Hammer HMCP070J2C Circuit Breaker 3P 70A 600V ! NEW !

Cutler Hammer AN16DN0 (C306GN3) Contactor w/ Overload Relay Attached  WOW

EATON CUTLER-HAMMER PS256A-04B1 HIGH POWER SUPPLY NEW IN BOX!!

Eaton Opcon 8161B-1X2 60-Series Normal Response Control Board ! NEW !

NEW CUTLER HAMMER TYPE BA BAB3015HT CIRCUIT BREAKER 3 POLE 15 AMP

Cutler-Hammer Cutler Hammer Leistungsschalter E125B 50 Amp  EGB3050FFG  #OM-1349

Eaton Cutler Hammer Intelligent Techn. E04NB32X3N

Cutler Hammer 1173AF2003 Proximity Control ! NEW !

D26MTE CUTLER-HAMMER D26 Pneumatic Timer timing range — 0.1 to 180 sec DPDT

Cutler Hammer HFD3175  175A, 3PH, 600V, 25kA@600V, Circuit Breaker

Cuttler Hammer SNT4LP11K SHUNT TRIP ACCESSORY (110-240VAC)

Cutler Hammer D120PM8 Universal Ram Memory Board ! WOW !

CUTLER HAMMER TRIP UNIT 600AMP 3 POLE PLT3600 NEW

Cutler Hammer Industrial Circuit Breaker HMCP100R3CA10

Cutler Hammer MCCB 30 Amp Triple Pole 30A Westinghouse Series C FI3030L NEW

Cutler Hammer MCCB 32 Amp Triple Pole 32A Westinghouse Series C FWF3032L NEW

Cutler Hammer EHD 14k Ser C Industrial Circuit Breaker EHD3060 60 Amp 3 pole

Cutler Hammer 3HD362NF  60 Amp, 3 Poles, 600V, Type 3R, Non-Fusible Switch

***NEW SURPLUS*** QBH2125 Commander/Sylvania/Cutler Hammer/CEB 125 Amp, 2 Pole

CUTLER-HAMMER HFD3100 CIRCUIT BREAKER

CUTLER HAMMER EATON -- SERIES C THERMAL MAGNETIC TRIP 200-250amps JT3250TA Qty

CUTLER HAMMER EATON - SERIES C THERMAL MAGNETIC TRIP 100-125amps JT3125TA 3 Pole

Cutler-Hammer Start Stop Emergency Control Station  Heavy Duty Enclosure SS 316

Cutler-Hammer FDB3100 Circuit Breaker 100A 3Pole 600VAC 14KA@480VAC ! WOW !

CUTLER-HAMMER C0525E4NFBXXES 525VA Transformer ! NEW NO PKG !

Cutler Hammer AN16GN0 (C306GN3) Contactor 45A w/ Overload Relay Attached  WOW

Cutler Hammer D120PM10 Input Module 110-115VAC ! WOW !

CUTLER HAMMER 4 POSITION JOYSTICK PART NO. CH

CUTLER-HAMMER HMCP100R3S CIRCUIT BREAKER 3 POLE 600VAC/240VDC 100AMP

Cutler Hammer 12HD363NFW 100A, 3P, 600V, EEMAC 12, Dust Tite, Non-Fusible Switch

Cutler Hammer D120PM20 Output Module 110-115VAC ! WOW !

Cutler Hammer HMCP050K2C Motor Circuit Interrupter 50AMP 600VAC 250VDC  WOW

Cutler Hammer 250 Amp Circuit Breaker HMCP2LWS10  #78127

Cutler Hammer MCCB 32 Amp Triple Pole 32A Breaker Westinghouse Series C FWF3032L

Cutler Hammer FW3050 circuit breaker NEW 50 amp FW40K

Cutler Hammer E2FM3032 32 amp 1000volt mining circuit breaker

Cutler Hammer FDCM3032 32 amp 1000volt mining circuit breaker

CUTLER HAMMER LOW RANGE STARTER, CAT#W200MLCFC,  MINT

CUTLER HAMMER SWITCH BODY FUSIBLE (J) WITH TEST #C363UC30JT 30A/600V NEW

Eaton Cutler-Hammer HFD-DC-125A - Motor Circuit Protector Circuit Breaker 125A

Cutler Hammer 3HD363NF  100 Amp, 600V, Type 3R, Non-Fusible Switch

Cutler Hammer W210M6CFC Horizontal Reversing Starter NSFP **GENUINE** Eaton

Cutler Hammer CN55TN3CB NSFP **GENUINE** Eaton Westinghouse CH

CUTLER HAMMER NGC312033EC FNFP NGC312033EC

CUTLER HAMMER CE15ZN3A USPP CE15ZN3A

Cutler Hammer A200M6CAC NSFP **GENUINE** Westinghouse

CUTLER HAMMER P3BRD31250BOG USPP P3BRD31250BOG

CUTLER HAMMER W201KGCFZ1 USPP W201KGCFZ1

Cutler Hammer A201K6CA NSNP **GENUINE** Westinghouse

CUTLER HAMMER NGC312033EC NSFP NGC312033EC

CUTLER HAMMER AF520008-0480 USPP AF5200080480

Cutler Hammer Eaton CN15TN3CB NSFP **GENUINE** Westinghouse CH

CUTLER HAMMER SVX200A1-4A1N1 NSPP SVX200A14A1N1

Cutler-Hammer, CHND312T52W, Circuit Breaker CHND 65k 1200A 3Pole 600VAC NEW

CUTLER HAMMER SVX200A1-4A1N1 USPP SVX200A14A1N1

CUTLER HAMMER RD325T36W USPP RD325T36W

CUTLER HAMMER W210M3CFC HORIZONTAL REVERSING STARTER *NEW IN BOX*

Cutler Hammer W200M5CFC  NSFP **GENUINE** Eaton Westinghouse

Cutler Hammer W200M5CFC NSNP **GENUINE** Eaton Westinghouse

CUTLER HAMMER RD325T32W USPP RD325T32W

CUTLER HAMMER HNB31200T USPP HNB31200T

CUTLER HAMMER AN16SN0AB FNFP AN16SN0AB

CUTLER HAMMER ND312T36W USPP ND312T36W

CUTLER HAMMER RD320T36W USPP RD320T36W

Cutler Hammer A200M5CAC NSFP **GENUINE** Westinghouse

Cutler-Hammer, SV9050AS-5M0B00, SV9000 Inverter VFD Servo 75A Output Drive

CUTLER HAMMER AF95AG0C015VL2I3X5 USPP AF95AG0C015VL2I3

CUTLER-HAMMER HMA-31000T AB TRIP UNIT **

CUTLER HAMMER CN15TN3AB USPP CN15TN3AB

CUTLER HAMMER S801V50N3S NSFP S801V50N3S

CUTLER HAMMER RD316T35W USPP RD316T35W

Cutler-Hammer ND-50k Industrial Circuit Breaker Cat# ND312T36W 3Pole 1200A NEW

CUTLER HAMMER SV9150ADV5M0A00C1 USPP SV9150ADV5M0A00C

CUTLER HAMMER ND312T33W NSFP ND312T33W

CUTLER HAMMER 149D835G01 M300 AC VOLTAGE ERROR DETECTOR REV B REV 08 D511402

NEW CUTLER HAMMER CN15TN3AB CONTACTOR SIZE 6, 120V, 3 POLE, 3PH, SER. B1

CUTLER HAMMER W201K6CF USPP W201K6CF

CUTLER HAMMER SV9050AP-5M0A32 USPP SV9050AP5M0A32

CUTLER HAMMER SV9075AN-5M0A32 USPP SV9075AN5M0A32

CUTLER HAMMER SV9NCLWCN USPP SV9NCLWCN

CUTLER HAMMER A201K5CA NSPP A201K5CA

Cutler-Hammer, SVX050A2-4A1N1, HVX060A2-4A1N1-G Drive SVX9000 Series VFD Eaton

NIB EATON CUTLER HAMMER SVX040A1-4A1B1 SVX9000 40HP 380-500V DRIVE SVX040A14A1B1

CUTLER HAMMER HND312T32W USPP HND312T32W

CUTLER HAMMER 87C1120G11 USPP 87C1120G11

CUTLER HAMMER 140D481G03 USPP 140D481G03

CUTLER HAMMER G5100CN0CAC0201 USPP G5100CN0CAC0201

CUTLER HAMMER G5100CN0CAC0301 USPP G5100CN0CAC0301

CUTLER HAMMER WCBS6F NSPP WCBS6F

CUTLER HAMMER MDN6083LEA-08MMA-NAN4Y-NKLWX USPP MDN6083LEA08MMAN

CUTLER HAMMER HKD3225A06U18 CIRCUIT RBEAKER 225A *NEW IN BOX*

CUTLER HAMMER ECN5542BAH *NEW NO BOX*

CUTLER HAMMER EA270PN USPP EA270PN

CUTLER HAMMER W201K5CF NSFP W201K5CF

CUTLER HAMMER AF95AG0C040VLL8 USPP AF95AG0C040VLL8

CUTLER HAMMER HMA31000T USPP HMA31000T

CUTLER HAMMER SV9050AP-5M0A00 USPP SV9050AP5M0A00

CUTLER HAMMER HVX03031N1SA NSPP HVX03031N1SA

CUTLER HAMMER SVX050A2-2A1N1 NSPP SVX050A22A1N1

Cutler Hammer W200M4CFCY4Y7 NSFP **GENUINE** Westinghouse

CUTLER HAMMER HJD3250F FNFP HJD3250F

CUTLER HAMMER ND312T33W USPP ND312T33W

CUTLER HAMMER HMA3800T NSFP HMA3800T

CUTLER HAMMER 7685T-15OD NSPP 7685T15OD

CUTLER HAMMER S801V36N3B USPP S801V36N3B

CUTLER HAMMER 91-01095-00 CRT MODULE W/ 42-00924-02 **

CUTLER HAMMER S801V36N3S USPP S801V36N3S

Eaton Cutler Hammer  S811V36P3S SOFTSTART, 230/460V, 125/250HP

CUTLER-HAMMER IBPHFD3060G BUSWAY CIRCUIT BREAKER *FACTORY SEALED*

CUTLER HAMMER SVX060A1-4A1N1 USPP SVX060A14A1N1

CUTLER HAMMER G5100CN0CAC0300 USPP G5100CN0CAC0300

Cutler Hammer HMA3800T NSFP **GENUINE** Westinghouse

CUTLER HAMMER HMCP400X5C FNFP HMCP400X5C

CUTLER HAMMER AN16SN0BB USPP AN16SN0BB

CUTLER HAMMER AN16SN0AB USPP AN16SN0AB

Cutler Hammer Eaton AN16SN0AB  NSNP **GENUINE**  AN16S N0AB

Cutler Hammer Eaton AN16SN0AB NSFP **GENUINE** Westinghouse CH

CUTLER HAMMER 9351-G1F2M USPP 9351G1F2M

CUTLER HAMMER 1785K-PMPP-1700 USPP 1785KPMPP1700

CUTLER HAMMER 5785K-ACPMPP5000 USPP 5785KACPMPP5000

CUTLER HAMMER ND312T33W CIRCUIT BREAKER w/ 1000A TRIP *NEW NO BOX*

CUTLER HAMMER ECA2414CCD ADVANTAGE STARTER *NEW IN BOX*

Cutler Hammer ECA2314CAE  NSFP **GENUINE** Eaton Westinghouse

CUTLER HAMMER W201K4CF NSFP W201K4CF

Eaton Cutler-Hammer, 1785T PMPP 1700, PanelMate PowerPro 1700 92-01942-01 NEW

CUTLER HAMMER S801T24N3S NSFP S801T24N3S

Cutler Hammer RES1600LS NSFP **GENUINE** Eaton Westinghouse

CUTLER HAMMER 3985T-PM-PP-3000 USPP 3985TPMPP3000

Cutler Hammer AN16GG0AB NSFP **GENUINE** Westinghouse

CUTLER HAMMER 92-01815-03 USPP 920181503

CUTLER HAMMER HND3800T32W USPP HND3800T32W

CUTLER HAMMER ECA2221FAF NSFP ECA2221FAF

Cutler Hammer ECN2241AAH NSNP **GENUINE** Westinghouse

CUTLER HAMMER CPS200208YAK NSFP CPS200208YAK

Cutler Hammer WCBO6F NSFP **GENUINE** Westinghouse

CUTLER HAMMER CE15UN3A80 USPP CE15UN3A80

Cutler Hammer, 7685T-8E, 3-2393-003B, Eaton ATS PanelMate  Operator Interface Di

Cutler Hammer, 1155K-PMP-1100, 92-01975-01, Eaton Panelmate Pro LT  Touch Screen

CUTLER HAMMER HFD3200L FNFP HFD3200L

CUTLER HAMMER P3BDK3400GN USPP P3BDK3400GN

Cutler Hammer W201K4CF NSFP **GENUINE** Westinghouse

CUTLER HAMMER CN55NN3C USPP CN55NN3C

CUTLER HAMMER FP5200-01 USPP FP520001

Cutler Hammer AN16SNOA NSFP **GENUINE** Eaton Westinghouse

CUTLER HAMMER HMA3600T NSPP HMA3600T

CUTLER HAMMER 9087A57G21 USPP 9087A57G21

CUTLER HAMMER SPD200480Y3K NSPP SPD200480Y3K

CUTLER HAMMER PXM6051A1AA USPP PXM6051A1AA

CUTLER HAMMER HND3800T35W USPP HND3800T35W

CUTLER HAMMER D7DBA12STA1XXX USPP D7DBA12STA1XXX

Cutler Hammer W200M4CFC NSFP **GENUINE** Eaton Westinghouse

Cutler Hammer HMA3800T NSNP **GENUINE** Westinghouse

Cutler Hammer HMA3600T NSFP **GENUINE** Westinghouse

CUTLER HAMMER ECL03F8D3A *NEW IN BOX*

EATON CUTLER-HAMMER PX4051A5BB PX 4000 METER W/ 512MB CF, COM. EXP. & I/O CARDS

CUTLER HAMMER MD3600 USPP MD3600

CUTLER HAMMER SV9IOC100 NSFP SV9IOC100

CUTLER HAMMER DH363UWK316 NSFP DH363UWK316

CUTLER HAMMER NS360900A USPP NS360900A

CUTLER HAMMER PXM4051A1BB USPP PXM4051A1BB

CUTLER HAMMER SV9015AC-5M0B00 NSPP SV9015AC5M0B00

CUTLER HAMMER 5685D48G10 NSFP 5685D48G10

CUTLER HAMMER D72WTSP264HDW95 USPP D72WTSP264HDW95

CUTLER HAMMER SVX050A1-4A1N1 USPP SVX050A14A1N1

CUTLER HAMMER 92-00420-04 USPP 920042004

CUTLER HAMMER SVX030A1-2A1N2 NSFP SVX030A12A1N2

CUTLER HAMMER 7585DT-17 USPP 7585DT17

CUTLER HAMMER 6-29-2 USPP 6292

CUTLER HAMMER SV9010AC-5M0B00 USPP SV9010AC5M0B00

CUTLER HAMMER KDC3400F NSFP KDC3400F

Cutler Hammer 288B869A17 NSFP **GENUINE** Westinghouse

CUTLER HAMMER HND3800T33W USPP HND3800T33W

CUTLER HAMMER 92-00846-01 USPP 920084601

CUTLER HAMMER NPBILL20 NSFP NPBILL20

CUTLER HAMMER 5785K USPP 5785K

CUTLER HAMMER 39PKHX USPP 39PKHX

Cutler Hammer KES3400LSIG NSFP **GENUINE** Westinghouse

Cutler Hammer Eaton CPS120480DSK  NSFP **GENUINE** Westinghouse CPS12 0480 DSK

CUTLER-HAMMER IBPHFD3040G BUSWAY CIRCUIT BREAKER *FACTORY SEALED*

Cutler Hammer A210M3CAC NSFP **GENUINE** Westinghouse

CUTLER HAMMER 7685T-12OD USPP 7685T12OD

CUTLER HAMMER W200M4CFC USPP W200M4CFC

Cutler Hammer MORA1MAE NSNP **GENUINE** Eaton Westinghouse

Cutler Hammer M0RA2MAE  NSNP **GENUINE** M0RA2MAE  Eaton Westinghouse

Cutler Hammer Eaton MORA2MAE NSFP **GENUINE** Westinghouse CH

Cutler Hammer Eaton MORA2MAE NSNP **GENUINE** Westinghouse CH

CUTLER HAMMER KDC3225V NSFP KDC3225V

AN700DN0218A Cutler Hammer

CUTLER HAMMER ECN243BBAG STATER *NEW OUT OF BOX*

CUTLER HAMMER 92-01227-00 OPERATOR INTERFACE 18-30 VDC **

CUTLER HAMMER W210M1CFC NSFP W210M1CFC

CUTLER HAMMER PXM4051A1BA USPP PXM4051A1BA

CUTLER HAMMER CPS120600DSC USPP CPS120600DSC

CUTLER HAMMER EATON IQDP 4030 IQ DP 4000 / 3 PHASE POWER MODULE  NOS NIB P000314

CUTLER HAMMER SV9015AC-5M0B00 USPP SV9015AC5M0B00

CUTLER HAMMER DH363NWK NSFP DH363NWK

EATON CORPORATION 91-01213-03 CUTLER HAMMER MONITOR

CUTLER HAMMER #4 MOTOR CONTROL STAINLESS CABINET

CUTLER-HAMMER  A201K5CX  MODEL J MOTOR CONTROL *NEW NO BOX*

CUTLER HAMMER SV9040AS-6M0A00 USPP SV9040AS6M0A00

CUTLER HAMMER 1585THX NSFP 1585THX

CUTLER HAMMER SVX050A1-4A1B1 USPP SVX050A14A1B1

CUTLER HAMMER 7585T-8XE NSFP 7585T8XE

CUTLER HAMMER A201K4CW NSFP A201K4CW

CUTLER HAMMER V201K5CJZ1 CONTACTOR (AS PICTURED) **

CUTLER HAMMER SPD160480D2K NSFP SPD160480D2K

Cutler Hammer Eaton CPS250208YAK Clipper Power System Visor 208Y/120

CUTLER HAMMER PGGLOBL1701DPRO USPP PGGLOBL1701DPRO

Cutler Hammer 92-01806-05 Panelmate

Cutler Hammer A200M4CX NSFP **GENUINE** Westinghouse

CUTLER HAMMER 92-00639-05 USPP 920063905

Eaton PX 6000 Power Xpert Meter PX6051A5BB 512MB, Com. Expansion I/O Cards 

CUTLER HAMMER PXM4051A1AB USPP PXM4051A1AB

CUTLER HAMMER 7585T-10EPRO *NEW IN BOX*

CUTLER HAMMER PGGL0BL1701D-1785T USPP PGGL0BL1701D1785

CUTLER HAMMER ND312KA06U18Z07 USPP ND312KA06U18Z07

CUTLER HAMMER LA3400PT NSFP LA3400PT

CUTLER HAMMER HVX02514B1 USPP HVX02514B1

Cutler Hammer HLD3600 HLD Circuit Breaker 600A 3Pole 600V ! WOW !

Cutler-Hammer, 1570-H PM, 92-01672-01, 1500 Power Series Operator Interface Disp

AS IS CUTLER-HAMMER S801T18N3S SOFT STARTER **

CUTLER HAMMER IQ500LA NSFP IQ500LA

CUTLER HAMMER LEP3600T57 USPP LEP3600T57

EATON CUTLER-HAMMER S801T24N3W 92EA10060G0003G STARTER 240A A AMPS 600 VAC 24VDC

CUTLER HAMMER 92-01810-01 USPP 920181001

CUTLER-HAMMER 7585SK-10XE EPRO PANELMATE 92-02069-00 **

CUTLER HAMMER 5685D48G22 NSFP 5685D48G22

CUTLER HAMMER A201K4CW NSPP A201K4CW

CUTLER HAMMER PX4051A5BA NSPP PX4051A5BA

CUTLER HAMMER MP-3000 USPP MP3000

CUTLER HAMMER WCBO6F NSFP WCBO6F

CUTLER HAMMER D7DBA15STA1XXX NSFP D7DBA15STA1XXX

CUTLER HAMMER CE55NN3B NSFP CE55NN3B

Cutler Hammer A201K4CA  NSFP **GENUINE** A201K4CA  Eaton Westinghouse

CUTLER HAMMER M300 6965D73G02 ADJUSTER FOLLOWER D510924

CUTLER HAMMER ND312WKA06U18Y04 USPP ND312WKA06U18Y04

CUTLER HAMMER SV9010AP-5M0A00 USPP SV9010AP5M0A00

CUTLER HAMMER FD3175L FNFP FD3175L

CUTLER HAMMER ECA2238CBG NSFP ECA2238CBG

CUTLER HAMMER HMDL3800 USPP HMDL3800

CUTLER HAMMER AF15040B USPP AF15040B