DE1888A2
日期：2018-9-7PLC与人机界面现场进行具体工程的抗干扰设计时，要选择有较高抗干扰能力的产品，采取抑制干扰源、切断或衰减电磁干扰的传播途径和利用软件手段等措施，提高装置和系统的抗干扰能力。
1、采用性能优良的电源，抑制电网引入的干扰。
对于PLC控制器供电的电源，应采用非动力线路供电，直接从低压配电室的主母线上采用专用线供电。选用隔离变压器，且变压器容量应比实际需要大1.2～1.5倍左右，还可在隔离变压器前加入滤波器。对于变送器和共用信号仪表供电应选择分布电容小、采用多次隔离和屏蔽及漏感技术的配电器。控制器和I/O系统分别由各自的隔离变压器供电，并与主电路电源分开。PLC控制器的24V直流电源尽量不要给外围的各类传感器供电,以减少外围传感器内部或供电线路短路故障对PLC控制器的干扰。此外，为保证电网馈电不中断，可采用在线式不间断供电电源(UPS)供电，UPS具备过压、欠压保护功能、软件监控、与电网隔离等功能，可提高供电的安全可靠性。对于一些重要的设备，交流供电电路可采用双路供电系统。
2、正确选择电缆的和实施敷设，消除可编程控制器、人机界面的空间辐射干扰。
不同类型的信号分别由不同电缆传输，采用远离技术，信号电缆按传输信号种类分层敷设，相同类型的信号线采用双绞方式。严禁用同一电缆的不同导线同时传送动力电源和信号，避免信号线与动力电缆靠近平行敷设，增大电缆之间的夹角，以减少电磁干扰。为了减少动力电缆尤其是变频装置馈电电缆的辐射电磁干扰，从干扰途径上阻隔干扰的侵入，要采用屏蔽电力电缆。
3、PLC控制器输入输出通道的抗干扰措施
输入模块的滤波可以降低输入信号的线间的差模干扰。为了降低输入信号与大地间的共模干扰，PLC控制器要良好接地。输入端有感性负载时，对于交流输入信号，可在负载两端并接电容和电阻，对于直流输入信号可并接续流二极管。为了抑制输入信号线间的寄生电容、与其他线间的寄生电容或耦合所产生的感应电动势，可采用RC浪涌吸收器。
输出为交流感性负载，可在负载两端并联RC浪涌吸收器;若为直流负载，可并联续流二极管，也要尽可能靠近负载。对于开关量输出的场合，可以采用浪涌吸收器或晶闸管输出模块。另外，采用输出点串接中间继电器或光电耦合措施，可防止PLC控制器输出点直接接入电气控制回路，在电气上完全隔离。
4、PLC控制器抗干扰的软件措施
由于电磁干扰的复杂性，仅采取硬件抗干扰措施是不够的，要用PLC控制器的软件抗干扰技术来加以配合,进一步提高系统的可靠性。采用数字滤波和工频整形采样、定时校正参考点电位等措施，有效消除周期性干扰、防止电位漂移。采用信息冗余技术，设计相应的软件标志位;采用间接跳转，设置软件保护等。例如对开关量输入信号，采用定时器延时的方式多次读入，结果一致再确认有效，提高了软件的可靠性。
5、正确选择接地点，完善接地系统。
良好的接地是保证PLC控制器可靠工作的重要条件，可以避免偶然发生的电压冲击危害，还可以抑制干扰。完善的接地系统是PLC控制器抗电磁干扰的重要措施之一。
PLC控制器属高速低电平控制装置，应采用直接接地方式。为了抑制加在电源及输入端、输出端的干扰，应给PLC控制器接上专用地线，接地点应与动力设备的接地点分开。若达不到这种要求，也必须做到与其他设备公共接地，禁止与其他设备串联接地。接地点应尽可能靠近PLC控制器。集中布置的PLC控制器适于并联一点接地方式，各装置的柜体中心接地点以单独的接地线引向接地极。分散布置的PLC控制器，应采用串联一点接地方式。接地极的接地电阻小于2Ω，接地极最好埋在距建筑物10～15m远处，而且PLC控制器接地点必须与强电设备接地点相距10m以上。如果要用扩展单元，其接地点应与基本单元的接地点接在一起。
信号源接地时，屏蔽层应在信号侧接地;信号源不接地时，应在PLC控制器侧接地。信号线中间有接头时，屏蔽层应牢固连接并进行绝缘处理，各屏蔽层应相互连接好。选择适当的接地处单点接地，要避免多点接地。
6、设备选型。
在选择设备时，首先要了解国产PLC生产厂家给出的抗干扰指标，如共模抑制比、差模抑制比、耐压能力、允许在多大电场强度和多高频率的磁场强度环境中工作等，要选择有较高抗干扰能力的产品，如采用浮地技术、隔离性能好的可编程控制器、人机界面HMI。
可编程控制器、人机界面现场应用时的抗干扰问题，是复杂而细致的。抗干扰性设计是一个十分复杂的系统性工程，涉及到具体的输入输出设备和工业现场的具体环境，要求我们要综合考虑各方面的因素，必须根据现场的实际情况，从减少干扰源、切断干扰途径等方面进行全面的考虑，充分利用各种抗干扰措施来进行可编程控制器、人机界面的设计。才能真正提高可编程控制器、人机界面HMI现场应用时的抗干扰能力，确保系统安全稳定运行。 咨询热线：18150695049
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漳州鼎晟达自动化设备有限公司
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【主营产品】
1：Invensys Foxboro（福克斯波罗）：I/A Series系统，FBM（现场输入/输出模块）顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。
2：Invensys Triconex: 冗余容错控制系统、基于三重模件冗余（TMR）结构的最现代化的容错控制器。
3：Westinghouse（西屋）： OVATION系统、WDPF系统、WEStation系统备件。
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5：Schneider Modicon（施耐德莫迪康）：Quantum 140系列处理器、控制卡、电源模块等。
6：ABB：工业机器人备件DSQC系列、Bailey INFI 90等。
7：Siemens(西门子)：Siemens MOORE， Siemens Simatic C1，Siemens数控系统等。
8：Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。
9：XYCOM：I/O 、VME板和处理器等。
10：GE FANUC(GE发那科)：模块、卡件、驱动器等各类备件。
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12：Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模块等。
13：Woodward（伍德沃德）：SPC阀位控制器、PEAK150数字控制器。
14:工业机器人系统备件。
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Square D 9001KS43K10E11 NSFP **GENUINE** 9001 KS43K10E11 Schneider Telemecanique
Square D 9001KR24RH13 NSFP **GENUINE** 9001 KR24RH13 Schneider Telemecanique
Square D 8005DMU1 NSFP **GENUINE** 8005 DMU 1 Schneider Telemecanique
Square D 9001KS49K10 NSFP **GENUINE** Schneider Telemecanique
Square D 9001KS42K10 NSFP **GENUINE** 9001 KS42K10 Schneider Telemecanique
1PC New Schneider Phaseo Power Supply ABL2REM24065H 150W DC24V
Square D 9001KXRAAH2 NSFP **GENUINE** Schneider Telemecanique
New TSX 07 31 1622 TSX Nano Schneider Auomation S.A.
Square D 9001KS63BH1 NSFP **GENUINE** Schneider Telemecanique
Square D 9001K1L35W NSFP **GENUINE** Schneider Telemecanique
TAC by Schneider Electric I/A Series MNB-V2 BACnet VAV Deluxe Controller
SCHNEIDER AUTOMATION DAP 218/AS-BDAP-218
SCHNEIDER AEG AUTOMATION TSX COMPACT DEP 218/AS-BDEP-218
SCHNEIDER 13958 MODULAR MINI ENCLOSURE KAEDRA NEW
Schneider Electric GV2ME14 NSFP **GENUINE** GV2 ME14 Telemecanique
Telemacanique 60213F NSFP **GENUINE** Schneider Square D
Telemacanique GV2ME14 NSFP **GENUINE** GV2 ME14 Schneider Square D
1 NIB SCHNEIDER ELECTRIC STBDDO3600K 24 VDC OUT 6PT KIT CONNS BASE STBDD03600K
Schneider Telemecanique XBTGT2110 Protective Membrane Film Touch Screen Glass
Square D 8501HMO30 NSFP **GENUINE** 8501 HMO 30 Schneider Telemecanique
Square D 8501HMO30 NSNP **GENUINE** 8501 HMO 30 Schneider Telemecanique
Square D 8501GO21V02 NSFP **GENUINE** 8501 GO21 V02 Schneider Telemecanique
Square D 8501GO20V02 NSNP **GENUINE** Schneider Telemecanique
10pcs Schneider miniature relay RXM2LB2JD 5A 12VDC NEW
Square D 3107140062 NSNP **GENUINE** 31071 400 62 Schneider Telemecanique
Schneider Automation TSX P5720_TSXP5720_TSX PREMIUM_V:1.50 Processor
Schneider Automation TSX Quantum Backplane 4 Slot Board Panel 140XBP00400
Schneider Inductive Sensor XS1M12KP340 New In Box !
Schneider TSX P 5720 Processor Module TSXP5720 _ TSX P5720 _TSX-P5720_TSX-P-5720
1PC NEW Schneider GV2-PM32C GV2PM32C 24-32A Breaker
Square D 1775S1U21A NSFP **GENUINE** 1775 S1 U21A Schneider Telemecanique
Telemecanique LP5D1210BD3 NSNP **GENUINE** LP5 D1210BD3 Square D Schneider
Square D EI3062 NSFP **GENUINE** EI3062 Schneider
Schneider Automation TSX P5720_TSXP5720_TSX PREMIUM_V:1.60 Processor
Schneider TSXLES64 Local Derivat Junction-40
New Schneider Acti9 IMSU 275V A9A26979 Programmable Logic Controller
Square D 9003K1B002N NSFP **GENUINE** Schneider Telemecanique
Square D 9003K1B1060T NSNP **GENUINE** Schneider Telemecanique
Telemecanique LA3D22A65 NSFP **GENUINE** Schneider Square D LA3 D22 A65
Telemecanique LX9FH2002 NSFP **GENUINE** Schneider Square D LX9 FH2002
Telemecanique LC1D0910T6 NSFP **GENUINE** Schneider Square D LC1 D0910 T6
Schneider Electric XVBL35 NSFP **GENUINE** XVB L35 Telemecanique
Schneider Electric XVBL33 NSFP **GENUINE** XVB L33 Telemecanique
Square D 2510KO2 NSNP **GENUINE** 2510 KO2 Schneider Telemecanique
SCHNEIDER SENATOR MC7032 USPP MC7032
1PC New Schneider Inductive Proximity Switch XUB5BPANL2
TELEMCANIQUE STBDDI3610 ADVANTYS 24VDC IN 6PT SCHNEIDER MODULE
Square D 9070T50D23 NSFP **GENUINE** 9070 T50D23 Schneider Telemecanique
Square D 9070T50D3 NSFP **GENUINE** 9070 T50D3 Schneider Telemecanique
Square D 9070T50D13 NSFP **GENUINE** 9070 T50D13 Schneider Telemecanique
Square D 2959S1W33A NSNP **GENUINE** Schneider Telemecanique
Square D 9070T50D4 NSNP **GENUINE** 9070 T50D4 Schneider Telemecanique
1PCS New Schneider Contactor LC1D32BDC 24VDC
SCHNEIDER AUTOMATION 170-NEF-160-21 *NEW*
1PC NEW Schneider RM4TG20 220-440 Relay
Square D 9001KS44K5CH501 NSFP **GENUINE** Schneider Telemecanique
SCHNEIDER AUTOMATION PM+ 1000 MODBUS INTERFACE UNIT MM-PMMP003C
Square D 8501LC3 NSFP **GENUINE** 8501 LC3 Schneider Telemecanique
Square D 8501LC3 NSNP **GENUINE** 8501 LC3 Schneider Telemecanique
Schneider Electric LC1DT20BL NSFP **GENUINE** Telemecanique
Schneider Electric LADT0 NSFP **GENUINE** Telemecanique
Schneider Electric LADT2 NSFP **GENUINE** Telemecanique
TAC Schneider Xenta 411 controller module
TAC Schneider Xenta 491 controller module
TAC Schneider Xenta 471 controller module
TAC Schneider Xenta 421 controller module
AEG SCHNEIDER AUTOMATION TSX Compact DAP 216N / AS-BDAP-216N 2X8 24VDC OUT 0.5A
Schneider 29450 CIRCUIT BREAKER AUXILIARY SWITCH - New Surplus Open
1pc NEW Schneider Telemecanique RM4 TG20 Voltage Monitoring Relay
Schneider Illuminated Unit XVBC2B3 New In Box !
Schneider Illuminated Unit XVBC2B4 New In Box !
1PC NEW Schneider XCK-S ZCK-D15 ZCK-S1 Limit Switch
SCHNEIDER ELECTRIC 140DA084210 AC OUT 100-230V 4 X 4 PLC CARD
Telemecanique MS01S0210 NSFP **GENUINE** Schneider Square D MS01 S0210
Square D 9001SKR9R05 NSFP **GENUINE** Schneider Telemecanique
1PC NEW Schneider IC65N 4P D1A Breaker
1PC NEW Schneider GV2-PM04C GV2PM04C 0.4-0.63A Breaker
Neu-OVP: Schneider Electric XAP M4508 031298 Leergeh?use XAPM4508
Schneider 140-CPS-114-10 Power Supply 140CPS11410 - Parts Only
Schneider Electric Programmable Contact 48846 New
new - original packaging: Schneider Electric XAP M4508 031298 Empty box XAPM4508
Square D 9001UO1 NSFP **GENUINE** Schneider Telemecanique
1Pcs NEW Schneider Limit Switch ZCK-Y43C ZCK-Y43C
Schneider PLC Input Module TM2DDI8DT Tested
1PCS NEW Schneider contactor LC1D50AQ7C
Square D 9007MS04G0300 NSFP **GENUINE** 9007 MS04G03 00 Schneider Telemecanique
Square D 8536AG1V02 NSFP **GENUINE** 8536 AG1 V02 Schneider Telemecanique
Square D 9001KM1R NSFP **GENUINE** 9001 KM1R Schneider Telemecanique
Schneider TSX Momentum 170ADM35010 I/O Base
Telemecanique Schneider Advantys STB ART 0200 Analog IN 2ch 16 Bit ( Lot of 2 )
1 PC New Schneider PLC 140XTS00200 In Box
Telemecanique ZC2JC1 NSNP **GENUINE** Schneider Square D ZC2 JC1
Telemecanique J20FTC13 NSFP **GENUINE** Schneider Square D J20 FTC13
Telemecanique LADR2 NSFP **GENUINE** Schneider Square D LAD R2
Square D 4811412051 NSFP **GENUINE** 481141 20 51 Schneider Telemecanique
Telemecanique ZBE-205 Schneider Contact Block ZBE205 (Pack of 3) - New No Box
SCHNEIDER ELECTRIC S-30021-939-50 USPP S3002193950
New Schneider Limit Switch ZCK-Y13C ZCK-Y13C
Schneider Touch Screen Glass XBTGT2110 NEW
Square D AL2500PA NSFP **GENUINE** Schneider Telemecanique
Schneider Electric K1D011B NSFP **GENUINE** Square D
1pcs NEW Schneider IC65N 4P D63A Breaker
SCHNEIDER OSISWITCH ZCMD2102L1 LIMIT SWITCH
Telemecanique LC1D09 NSNP **GENUINE** Schneider Square D LC1 D09
Telemecanique SGA8018 NSNP **GENUINE** Schneider Square D SGA 8018
TELEMECANIQUE SCHNEIDER AUTOMATION, TBX I/O MODULE, TBXDMS16C22
Square D 9001BW71YU NSFP **GENUINE** 9001 BW71YU Schneider Telemecanique
1PCS NEW Schneider touch screen glass XBTOT5320
New Schneider iINT125 3P 63A A9S68363 Circuit Breaker
NEW Schneider Contactor LC1D2510M5N 220VAC
Schneider 140 DAI 543 00 AC IN 115V 2X8 Intput Module 140DAI54300
Square D 2510KF1A NSFP **GENUINE** Schneider Telemecanique
Square D 9999R26 NSNP **GENUINE** 9999 R 26 Schneider Telemecanique
Telemecanique GV1M06 NSFP **GENUINE** Schneider Square D GV1 M06
Telemecanique GV1M14 NSFP **GENUINE** Schneider Square D GV1 M14
Schneider Electric CAD32BL NSNP **GENUINE** Telemecanique
Schneider Electric CAD32BD NSNP **GENUINE** Telemecanique
Square D MG24522 NSNP **GENUINE** Schneider Telemecanique
Square D MG24125 NSFP **GENUINE** Schneider Telemecanique
Schneider Electric 1 Pkt. TRV00830 11213 RJ45-Kabel 3M OVP
Square D 2520MP1.0 NSFP **GENUINE** 2520 MP1 0 Schneider Telemecanique
Square D 9013GHG2J51 NSFP **GENUINE** Schneider Telemecanique
Square D 3103040058 NSNP **GENUINE** Schneider Telemecanique
Telemacanique CA2DN1319F NSFP **GENUINE** CA2 DN1319F Schneider Square D
Square D 9037GG7 NSNP **GENUINE** 9037 GG 7 Schneider Telemecanique
Telemecanique CA4DN22BD NSFP **GENUINE** Schneider Square D CA4 DN22 BD
SCHNEIDER ELECTRIC LRD-3363 RELAY LR2D3363 LA7-D3064 Tested
Schneider Electric LC1D32G7
SCHNEIDER ELECTRIC LC1D12BD CONTACTOR *FS*
Schneider Modicon TSX Premium TSX-P5710 Processor __ TSXP5710 __ TSXP5710M
1PC NEW Schneider Osiswitch ZCMD21L5 5 Limit Switch
Schneider Modicon AS-B875-111 Analog Input Module
Schneider Extension Module SR3XT141JD New In Box !
Square D 9001BG215 Schneider Telemecanique
SCHNEIDER ELECTRIC LC1D12BD CONTACTOR *FACTORY SEALED*
1PC NEW Schneider Schneider V3C 63A Breaker
SCHNEIDER LX1D25021 COIL *NEW IN BOX*
TELEMECANIQUE LUC-A18BL STARTER W52
Schneider Automation Modicon P120 AS-P120-000 Comp 984 Power Supply Module
8 NEW SCHNEIDER ELECTRIC RXM3AB2F7 RELAYS
1PC NEW Schneider Contactor LC1D2510M5N 220VAC
Schneider TSXPSY3610
Square D 9001AE4 NSFP **GENUINE** 9001 AE4 Schneider Telemecanique
Square D 9998SL2 NSNP **GENUINE** 9998 SL2 Schneider Telemecanique
AEG Schneider, Modicon Output Modbus Plus Tio, # 170 BDO 542 50, , WARRANTY
SCHNEIDER ATV12H037M2 ALTIVAR INVERTER
SCHNEIDER ELECTRIC DRIVE ATV28HU18N4 **
SERVICE ENGINEER ID007990S2 *NEW NO BAG*
SQUARE D 9065SO08 RELAY OVERLOAD *NEW NO BOX*
Telemecanique Schneider STBPDT3100
Square D 9007CO62 NSFP **GENUINE** 9007 CO62 Schneider Telemecanique
TM-4137, SCHNEIDER AUTOMATION AS-H819-100
AEG SCHNEIDER TSX QUANTUM P/N: 140-DDO-153-10 (B8)
Modicon TSX Quantum Backplane 10 Slot 140 XBP 010 00 PLC By Schneider Automation
Schneider Modicon Quantum 140DA084210 AC Out 4x4 100-230V
3 Schneider Electric LC1D12BD Control Contactor 5-24V DC Coil LADN40 N/O Block
10pcs Schneider miniature relay RXM2LB2JD 5A 12VDC NEW
Schneider XVB C9B Akustikelement 084596
Schneider GEADAT KOS 202A
Schneider TSX Momentum 170INT11001 Interbus-S Comm Adapter 3-2 #82
TELEMECANIQUE SCHNEIDER AUTOMATION, I/O MODULE, TSXDMF401
TU393 Telemecanique Schneider Advantys STB PDT3105 STBPDT3105
TU397 Telemecanique Schneider Advantys STB PDT3105 STBPDT3105
Square D 8440PS24 NSNP **GENUINE** 8440 PS24 Schneider Telemecanique
Square D 9998CA23 NSFP **GENUINE** 9998 CA 23 Schneider Telemecanique
Telemecanique GV2M06 NSFP **GENUINE** Schneider Square D GV2 M06
Square D 9065CO1R NSNP **GENUINE** 9065 CO 1R Schneider Telemecanique
Square D 9065CO1R NSFP **GENUINE** 9065 CO 1R Schneider Telemecanique
Square D 9001KR9G NSFP **GENUINE** 9001 KR9G Schneider Telemecanique
Square D QOB130PL5393 NSFP **GENUINE** Schneider Telemecanique
Square D 2510FS1P NSFP **GENUINE** 2510 FS1P Schneider Telemecanique
Square D 9065SEO5 NSFP **GENUINE** 9065 SEO5 Schneider Telemecanique
Square D 9065C01R NSNP **GENUINE** 9065 C0 1R Schneider Telemecanique
Square D 2510FG1PG NSFP **GENUINE** Schneider Telemecanique
Square D 9003K2F006QA NSFP **GENUINE** Schneider Telemecanique
Square D 9001SKRU1 NSNP **GENUINE** 9001 SKRU1 Schneider Telemecanique
Square D 9065SEO5 NSNP **GENUINE** 9065 SEO5 Schneider Telemecanique
Square D 3106358950 NSFP **GENUINE** 31063 589 50 Schneider Telemecanique
Square D 2510FO2P NSFP **GENUINE** 2510 FO 2P Schneider Telemecanique
Square D 9065C01R NSFP **GENUINE** 9065 C0 1R Schneider Telemecanique
Square D PDC4LA250 NSFP **GENUINE** Schneider Telemecanique
Schneider Electric 9001KR9R NSFP **GENUINE** 9001 KR9R Square D
New Schneider DAP210 AS-BDAP-210 Output Module
Square D 9001KR9R NSNP **GENUINE** Schneider Telemecanique
Telemecanique XCSA150519 NSFP **GENUINE** Schneider Square D XC SA150519
Telemecanique LC1D12T7 NSFP **GENUINE** Schneider Square D LC1 D12T7
Telemecanique LB1LC03M10 NSNP **GENUINE** Schneider Square D LB1 LC03M10
Schneider Electric XS630B1MAU20 NSFP **GENUINE** XS6 30B1MAU20 Telemecanique
Schneider Electric DL1BDB3 NSFP **GENUINE** DL1 BDB3 Telemecanique
TELEMECANIQUE / SCHNEIDER DK1-EB24 CONTACTOR, 660V 50A
Schneider AEG | DEP 220 | | USPP | PLC2DAY
Square D 9037HG3 NSFP **GENUINE** Schneider Telemecanique
Square D 9037HG32 NSFP **GENUINE** Schneider Telemecanique
SCHNEIDER ELECTRIC LC1DT25G7 CONTACTOR *NEW IN A BOX*
SCHNEIDER AUTOMATION TSXPSY2600 **
SCHNEIDER PC-A984-145 COMP 984 CPU 8K MEM 1XMB MB+ - - FREE SHIPPING
SCHNEIDER TSX MOMENTUM 24VDC 16 POINT I/O BASE 170ADI34000
AEG MODICON SCHNEIDER AUTOMATION INC AS-B802-008 115VAC OUTPUT, NNB
Telemecanique LC1D0910B5 NSFP **GENUINE** Schneider Square D LC1 D0910 B5
Telemecanique GV2L08 NSNP **GENUINE** Schneider Square D GV2 L08
1PC NEW Schneider IC65N 4P D63A Breaker
Square D 3103203655 NSFP **GENUINE** 31032 036 55 Schneider Telemecanique
Square D 2520MP1.6 NSNP **GENUINE** 2520 MP1 6 Schneider Telemecanique
Square D 9007B51B2 NSNP **GENUINE** 9007 B51 B2 Schneider Telemecanique
new, TSX Nano TSX 0730 1028 , Schneider Automation S.A.
Telemecanique DL1BDB3 NSFP **GENUINE** Schneider Square D DL1 BDB3
Telemecanique XUEH3000H7 NSFP **GENUINE** Schneider Square D XUE H3000 H7
Telemecanique XUEH3000 NSFP **GENUINE** Schneider Square D XUE H3000
Telemecanique XS1N18NA349L1 NSFP **GENUINE** Schneider Square D XS1 N18NA349L1
Square D 8501DO20V02 NSFP **GENUINE** 8501 DO20 V02 Schneider Telemecanique
SCHNEIDER ELECTRIC EM3500ENC NSFP EM3500ENC
SCHNEIDER ELECTRIC LC1D253B7 USPP LC1D253B7
Lot of 2 Schneider Electric Telemecanique Square D GV2ME10/ 4-6.3A
Square D 9999R33 NSFP **GENUINE** 9999 R 33 Schneider Telemecanique
Square D 9001TP1G1 NSFP **GENUINE** 9001 TP1G1 Schneider Telemecanique
Square D 9001TS1K1 NSFP **GENUINE** 9001 TS1K1 Schneider Telemecanique
Square D 9001JP38G29 NSFP **GENUINE** Schneider Telemecanique