SIEMENS 6DR2004-1

空間的輻射電磁場(EMI)主要是由電力網(wǎng)絡(luò)、電氣設(shè)備的暫態(tài)過程、雷電、無線電廣播、電視、雷達(dá)、高頻感應(yīng)加熱設(shè)備等產(chǎn)生的,通常稱為輻射干擾,其分布極為復(fù)雜。若DCS系統(tǒng)置于所射頻場內(nèi),就回收到輻射干擾,其影響主要通過兩條路徑：一是直接對DCS內(nèi)部的輻射,由電路感應(yīng)產(chǎn)生干擾；而是對DCS通信內(nèi)網(wǎng)絡(luò)的輻射,由通信線路的感應(yīng)引入干擾。輻射干擾與現(xiàn)場設(shè)備布置及設(shè)備所產(chǎn)生的電磁場大小,特別是頻率有關(guān),一般通過設(shè)置屏蔽電纜和DCS局部屏蔽及高壓泄放元件進(jìn)行保護(hù)。 

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28 pc Allen Bradley Terminal Block End Barrier 1492-PPSL3

Allen Bradley Relay 700-MB400 Series A

Cutler Hammer Open Relay 9575H2442A

Turck Sensor Cord Set U2029 3 Pin

Turck Sensor Cordset MQDC-415 4 wire

Potter & Brumfield 24vdc Relay KRPA14DN

Cutler Hammer 2 Position Selector Switch Operator E22SF3

Allen Bradley 800T-XD4 Contact Block

Bussmann 2 Pole Finger Safe Fuse Holder CH142D 600V

2pc Allen Bradley Motor Starter Overload Heater W32

Siemens 2 Pole Circuit Breaker 5SX22 D4 4 amp

Automation Direct GCX1310 Selector Switch

Allen Bradley 700-N24 Relay Surge Supressor

10pc Allen Bradley 1492-N96 End Barrier

3pc Allen Bradley Green Extended Head Cap 800T-N41 Series C IN BAG

3pc Culter Hammer Thermal Overload Heater 1024 UN

Red Lion CUB Counter CUB2L800

EMECANIQUE ZB4BW062 LIGHT MODULE ASSEMBLY

Midtex Relay 157-22U2C0 240v coil

5pc Buss Low Peak Yellow Fuse LPS-RK-10SP

Amphenol MS Military Connector Flange Mount Plug MS3112E10-6P

NFL Buffalo Bills Hard Shell Apple iPod Touch 4th Generation HOT PINK

NFL York Jets Hard Shell Apple iPod Touch 4th Generation HOT PINK

NFL Cincinnati Bengal Hard Shell Apple iPod Touch 4th Generation HOT PINK

NFL Philadelphia Eagles Hard Shell Apple iPod Touch 4th Generation HOT PINK

Texas A & M Hard Shell 2 Piece Case for Apple iPhone 3G / 3GS FVA2716

MLB Licenced Texas Rangers Silicone Case for Iphone 4 FVA4204

Red Dot Wet Location Outlet Box 1/2" IH3-1-LM Three hole

Keyscraper MLB Licenced White Sox Hardshell Case for Iphone 4

Fuji Circuit Breaker CP32FM/3 3amp 240vac / 120vdc

Allen Bradley Relay 700-HAX3A1 3SPDT 120vac

Siemens Push Button Operator 52PX8B3 Extended Head Green

Honeywell Limit Switch Roller Double Actuator LSZ53D

Lumberg T Tap 50RKT5

Glenair Military Connector MS 9016 370DS002B1008A4

T&B Kellums Strain Relief 3/4"

2pc Allen Bradley Limit Switch Roller Arm Nylon Roller

Canfield Connector Proximity Sensor 9C10-000-331 IN BAG

Allen Bradley Overload Heater N52 IN BAG

GE Circuit Breaker THQB2140 2pole 40amp 120/240v

emecanique Pilot Light Module ZB2BV6-24V 24V AC/DC

3pc Square D Thermal Overload Heater B3.70

Potter & Brumfield Ice Cube Relay KRPA-11DG-48 48vdc coil

GE Circuit Breaker THQB2150 2pole 50amp 120/240v

3pc Allen Bradley Relay Socket Base 700-HN121 Series A

34pc Square D Relay Socket Clips 8501NH33

Cutler Hammer Starter Overload Heater H1029

IDEC Miniature Relay RHIB-U RH1B-U 24vac w/ Din Rail Base

SMC Pneumatic Cylinder Seal Kit CS1N125A-PS

emecanique Auxillary Contact LA1-LC030

Westinghouse MW-11 Overload Relay

Square D QO Circuit Breaker QO225

Square D QO Circuit Breaker QO220

3pc Furnas Thermal Overload H12

2pc General Electric Thermal Overload C137B UN

2pc Leviton 10-50 Socket 50amp 125/250vac

Omron Ice Cube Relay LY2 24vdc coil w/ base

Allen Bradley AC Relay 700-P400A1 120v coil

Cutler Hammer Padlock Attachment 10250TA26

Omron Photoelectric Sensor E3V-DS70C43S 12-24VDC

Turck Micro Fast Sensor Cordset KB 4T-4 4 WIRE 4 METER

Pepperl & Fuchs Universal Sensor Support Bracket BF5-30 IN BAG

Allen Bradley Pilot Light LED Lamp 800T-N318W White 6v IN BAG

DeviceNet KwikLink Connector 1485P-P1H4-R5 Series A

Allen Bradley 800T-A Push Button Series T Yellow

Siemens Circuit Breaker 5SX21D8 230 / 400 vac 8amp 1 pole

Eaton Culter Hammer Overload H1105

Micro Switch Push Button Contact Block PTCF

Micro Switch Push Button Contact Block PTCB

Micro Switch Push Button Contact Block PTCE

2pc Allen Bradley 194R-A1 Auxilliary Support Kit

3pc Buss Low Peak Yellow Fuse LPJ-25SP

3pc Buss Low Peak Yellow Fuse LPJ-2-8/10SP

9pc Allen Bradley 1492-N96 End Barrier

Micro Switch Push Button Contact Block PTCD

South Park Hard Shell Case for Apple iPhone 4 by Tribeca FVA5794

4pc Buss Low Peak Yellow Fuse LPJ-8SP

Sylvania Motor Starter Overload Heater 2441

Lumberg Mating Connector RKC 40/9 IN BAG

3pc Buss Low Peak Yellow Fuse LPJ-5SP

3pc Buss Low Peak Yellow Fuse LPJ-4SP

Cutler Hammer Starter Overload Heater H1030

3pc Buss Low Peak Yellow Fuse LPJ-3SP

Bussmann 3 Pole Fuse Holder BM6033PQ 30amp 600v 3 Pole

2pc Angry Birds Hard Shell Case for Apple iPhone 4

8pc SMC Metering Valve with Silencer ASN2-M5

Cutler Hammer Starter Overload Heater H1022

3pc Buss Low Peak Yellow Fuse LPJ-2-1/4SP

3pc Buss Low Peak Yellow Fuse LPJ-2-1/2SP

3pc Buss Low Peak Yellow Fuse LPJ-1-6/10SP

Clark Motor Starter Overload Heater 2421

Sylvania Motor Starter Overload Heater 2427

Cutler Hammer Heater Overload 1020

Sylvania / Joslyn Starter Overload Heater 2453

Siemens Circuit Breaker 5SX21C5 230 / 400 vac 5amp 1 pole

Cutler Hammer Push Button Operator E30AA

Cutler Hammer Mushroom Head Operator 10250TB60 IN BAG

Banner BR-2 Relay 12vdc coil

Square D Ice Cube Relay 8501 RSD44V53 4PDT 10amp 24vdc

Allen Bradley 1492-HM2K120 Surge Suppresor Terminal Blk

Jet-Set Tee Jet Spray 80015

Cutler Hammer Overload Heater H1114

Cutler Hammer Overload Heater H1117

4pc Buss Low Peak Yellow Fuse LPJ-10SP

Bradymarker Lables WML-771-502 200PCS

emecanique Auxiliary Contact Block LA1 LB015

6pc Allen Bradley Marker Card 1492-SM6X12V201?-250

Air Products & Controls Relay Board MR-801/T SPDT 10amp

Square D QO Circuit Breaker QO215

Square D QO Circuit Breaker QO210

Siemens ProfiBus Connector 6ES7-972-0BA51-?0XA0

2pc Furnas Thermal Overload H25 UN

Leviton Locking Plug 2411 3 Pole 4 Wire

Moeller Auxillary Contact Block 04DIL

Potter & Brumfield Ice Cube Relay KUP-11D55-24 24vdc coil 2 Pole

IDEC Miniature Relay RH1B-U AC120 w/ Din Rail Base

Eagle Signal Ice Cube Relay w/ base 16Q1CA120 120v coil 1 pole

2pc Releco Ice Cube Relay C3-A 30 120vac coil 3 Pole

Square D 9001 Keyed Selector Cylinder Lock Operator

Mytech Power Pack Slave MP-SA

Allen Bradley Thermal Overload Heater B64

Cutler Hammer Overload Heater H1112

NTN Bearing 51107

3pc Buss Low Peak Yellow Fuse LPS-RK-70SP

emecanique Motot Contactor CA3DN22 24VDC COIL

Cutler Hammer Freedom Series Contact C320KGS1 Ser A2

2pc INA Needle Bearing Caged HK1412B

Phoenix Contact Relay PLC-BSP-24DC-1-?ACT

3pc Square D Thermal Overload Heater B1.88

Molex MS Military Type Socket Connector 19 pin

Cutler Hammer Limit Switch Receptacle E50RA

2pc Omron Relay LY4N 24vdc Coil 4 Pole

Exair Midflow Bracket Kit 900397

2pcs Amphenol MS Connector Collar 97-3106A-14S

2pc Banner Mounting Bracket SMB18FA IN BAG

Bimba Stainless Pneumatic Cylinder PC-094-DXP

Balluff Sensor Mounting Bracket 18.0-KH-1

Allen Bradley Thermal Overload Relay 193-BSB12 Series A .8 - 1.2 amps

Omron Relay LY4N 24vdc Coil 4 Pole w/ PTF14A-E base

Gould Heater Overload G30T46

2pc ITE Heater Overload M43 Class G30

Banner Maxi-Beam Fiber Optic Sensor Head RSBFP

Schrader Bellows Pivot Pin 0856640100

Allen-Bradley 140-T01 Auxiliary Contact In Package

Allen Bradley 800T-A Push Button Series T Black

Siemens Thermal Overload SFH37

Eaton Culter Hammer Overload H1110

Joslyn Clark Heater Thermal Overload 2411

Sylvania Motor Starter Overload Heater 2451

Sylvania Motor Starter Overload Heater 2430

Joslyn Clark Motor Starter Overload Heater 2424

Banner Fiber Optic Mounting Bracket FMB-1

ILME Pass Thru Wiring Hood CYR16.3

3pc Buss Tron Time Delay Fuses FNQ-5

Allen Bradley Pilot Light Lens Guard 800T-N226

Square D Ice Cube Relay 8501KP12V14 Series F 24vac coil

5pc Potter & Brumfield Relay KRPA-14DG 24vdc 3 pole

2pc Allen Bradley Overload Heater W31

3pc Buss Low Peak Yellow Fuse LPS-RK-12SP

Sylvania Motor Starter Overload Heater 2421

20pc Allen Bradley Photoswitch Sensor Lens 60-2662 IN BAG

Banner Mini-Beam Fiber Optic Sensor SM2A312FQD 24-240VAC

Banner Shock Mount Hardware Pack 119224

Banner Mini-Beam Sensor Emitter SM31EQD

3pc Buss Low Peak Yellow Fuse LPJ-2SP

Joslyn Clark Heater Thermal Overload 2427

Sylvania Motor Starter Overload Heater 2445

Sylvania Motor Starter Overload Heater 2418

Sylvania Motor Starter Overload Heater 2452

Sylvania Motor Starter Overload Heater 2444

Sylvania Motor Starter Overload Heater 2439

Siemens Circuit Breaker 5SX21C6 230 / 400 vac 6amp 1 pole

Siemens Circuit Breaker 5SX21C1 230 / 400 vac 1amp 1 pole

2pc Turck Relay C2-A20BX 24v AC/DC coil 2 pole 8 pin

Lumberg Sensor Cord Set 909602 18/4 4 wire Single Key

Buss CHCC1I Finger Safe Fuse Holder 30a 600V

Allen Bradley 800H-N140 Padlocking Cover

Sylvania Starter Overload Heater 2456

2PC Federal Signal Incandecent Replacement Bulb K810718A

2pc AMF / Potter & Brumfield Relay IAC5A 240vac Input

Potter & Brumfield 3 Pole Relay KRPA-14AG-24 24vac Coil

Allen Bradley Auxilliary Contact 815-B0V4 Series K UN

3pc Bussman Low Peak Fuses LP-CC-1 1/2

2pc Bussman Low Peak Fuses LP-CC-7

2pc Bussman Low Peak Fuses LP-CC-12

3pc Buss Low Peak Yellow Fuse LPJ-1SP

Idec Panblock Terminal Block BA111TP 300V 15amp

Turck Micro Fast Sensor Cordset WKB 6T-4 6 WIRE 4 METER

Cutler Hammer Starter Overload Heater H1022

10pcs Allen Bradley Center Jumper 1492-CJ7-3

7pc Allen Bradley 1492-CE2 Terminal Block

Allen Bradley 1794-IB16 Flex I/O Module