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DCS的概念
集散控制系统（Distributed Control System）亦称分布式控制系统（简称DCS），是结合多种先进技术而形成的，对生产过程进行集中监测、操作、管理和分散控制的一种控制技术，是随着现代大型工业生产自动化的不断发展和过程控制要求的日益复杂应运而生的一种综合控制系统，是完成过程控制、过程管理的现代化设备。 幻灯片3 国外称集散控制系统是4C 技术的产物。这4C 就是指控制技术（Control）、计算机技术（Computer）、通信技术（Communication）、和CRT（Cathode Ray Tube）技术。DCS既不同于分散的仪表控制，又不同于集中式计算机控制系统，是4C 技术相互渗透发展而产生的 。
其特点是采用模块化、标准化设计，数据通信向标准化迁移，板级模块化，单元结 构化，使之具有更强适应性和可扩充性；新开发的多功能过程控制站、增强型操作站采用了16位CPU及高分辨率CRT技术；通信系统已采用局域网络（从主从式的星形变为总线网络或环网通信），使系统通信范围扩大，同时数据传输速率也大大提高；控制功能更加完善，它能实现过程控制、数据采集、顺序控制和批量控制功能。 其基本结构由六部分组成，即局域网络、多功能现场控制站、增强型操作站、主计算机、网络连接器和系统管理站等。
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Siemens QJ23B225H 225 Amp 240 V 3 Pole Circuit Breaker
Siemens Auxiliary Switch Block 3RH1921-1FA22
Siemens HED41B015 Circuit Breaker 15 Amp 1 Pole
Siemens QJ23B125 125 Amp 240 V 3 Pole Circuit Breaker
Siemens Type QP 30 Amp 2 Pole Circuit Breaker LOT OF 4
Siemens ED43B125 Circuit Breaker 125 Amp 3 Pole 480 V
Siemens 250 Amp Panelboard 3R Enclosure S1C42QJ225ATS S1 208Y/120 3Ph 4W
Siemens ED42B015 Circuit Breaker 15 Amp 2 Pole 480 V
Siemens B230 Circuit Breaker 30 Amp 2 Pole Type BL
Siemens HEB3B090 90 Amp 3 Pole Circuit Breaker
Siemens NMX3B700 700 Amp 600 V 3 Pole Circuit Breaker
Siemens HED43B125 Circuit Breaker 125 Amp 3 Pole 480 V
Siemens ED63B035L Circuit Breaker 35 Amp 3 Pole 600 V
Siemens LXD frame Single Breaker Mounting Hardware Kit Panel Cat# P4E90ML800ATS
Siemens Heavy Duty Safety Switch HF221N 30 Amp 240 V Fusible Disconnect
Siemens Simatic S7 DP/PA Coupler 157-0AC00-0A0
Siemens LEN01C003240A Lighting & Heating Contactor 30 Amp
Siemens HHFXD FXD Breaker Mounting Hardware Kit For Panel Cat# P4E90ML800ATS
Siemens Simatic Scalance X308-2 1P GK5 308-2FL00-2AA3 V2.3.1
Siemens ED63B020L Circuit Breaker 20 Amp 3 Pole 600 V
Siemens CLHF003 Lighting Contactor With 120 V Coil In Enclosure
Siemens Sentron Series HHFXD63B250 250 Amp 3 Pole 600 V Circuit Breaker HHFXD
Siemens Sentron FXD63B225 600 V 225 Amp Circuit Breaker
Siemens HEM3M070 Circuit Breaker 70 Amp 3 Pole 480 V
Siemens QJH23B070 Circuit Breaker 70 Amp 3 Pole 240 V
Siemens Lighting Contactor CLMOC05 30 Amp 480 Volt 3 Ph
Siemens ED62B020 Circuit Breaker 20 amp 2 Pole 600 V
Siemens B120H Circuit Breaker 1 Pole 20 Amp Type BLH LOT OF 5
Siemens ITE Fusible 400 Amp Panelboard Switch FPP 480Y/277 3 Phase 4 Wire
Siemens NXD63B120 Circuit Breaker 1200 Amp 3 Pole 600 V
Siemens Simatic 505-6204 4 CH Analog Output Module
Siemens MG frame Breaker Mounting Hardware LMX Breaker Panel Cat# P4E90ML800ATS
Siemens ED63B100 Circuit Breaker 100 Amp 600 V 3 Pole
Siemens ED63B100 3 Pole 600 V 100 Amp Circuit Breaker
Siemens Lighting Contactor CLMOD03 60 Amp 480 Volt
Siemens ED63B100L Circuit Breaker 100 Amp 3 Pole 600 V
Siemens Q 230 2 Pole 30 Amp Circuit Breaker New In Box
Siemens P1X18MC400A 400 Amp Panelboard NEMA 3R 208Y/120 No Main 3 Ph 4 W
Siemens JXD63B350 Circuit Breaker 350 Amp 3 Pole 600 V
Siemens ED 63 B 015 ED63B015 15 Amp Circuit Breaker
Siemens Micromaster 420 6SE6420-2UD17-5AA1 Drive
Siemens 3TH3031-0A Relay With 120 V Coil
Siemens Simatic Scalance X204-2 1P GK5 204-2BB10-2AA3 VV 4.0
Siemens 200 Amp Heavy Duty Safety Switch HF324N Fusible 240 Volt Type/NEMA 1
Siemens HNF364 Heavy Duty Safety Switch 200 Amp 3 Pole 600 V Type 1 Non Fusible
Siemens BQ3B030 Circuit Breaker 30 Amp 3 Pole 240 V
Siemens 9 Slot Rack 1P 6ES7 400-1JA01-0AA0
Siemens HJXD63B350 Circuit Breaker 350 Amp 3 Pole 600 V
Siemens 9 Slot Rack 1P 6ES7 400-1JA01-0AA0
Siemens HJXD63B350 Circuit Breaker 350 Amp 3 Pole 600 V
Siemens ED43B080 80 Amp 480 V 3 Pole Circuit Breaker W/Auxillary A01ED64 W/Shunt
Siemens HNF362 Heavy Duty Safety Switch 60 Amp 3 Pole 600 V Type 1 Non Fusible
ITE Siemens Sentron Series HFD63F250 250 Amp 3 Pole 600 V Circuit Breaker W/175
Siemens ED42B020 Circuit Breaker 20 Amp 480 V 2 Pole
Siemens Size 0 Fusible Combination Type 1 Enclosure
Siemens FXD63B250 Circuit Breaker 250 Amp 3 Pole 600 V
Siemens Type NEB3B060 frame EG 60 Amp 3 Pole Circuit Breaker
Siemens Type BQD 20 Amp 3 Pole 240 V
Siemens Q 3100 3 Pole 100 Amp New In Box
Siemens Q 260 2 Pole 60 Amp Circuit Breaker New In Box
Siemens Sentron JXD23B250 250 Amp 240 V 3 Pole Circuit Breaker
Siemens CFT3B200 NFGA 200 Amp 600 V Circuit Breaker
Siemens Transformer 4AM5742-8DD40-0FA0 1 KVA SIDAC-T
Siemens SITOP Redundanzmodul 1 P 6EP 1961-3BA20
Siemens HF222NR Heavy Duty Safety Switch 60 Amp 2 Pole 240 V NEMA 3 R Fusible
Siemens B120HH Circuit Breaker 1 Pole 20 Amp Type HBL LOT OF 5
Siemens 3TF5622-OAK6 Contactor 600 V
Siemens ITE Sentron SPD69160G 1600 Amp 3 Pole 600 V LGI Circuit Breaker
Siemens B120 Circuit Breaker 1 Pole 20 Amp Type BL LOT OF 5
Siemens Simatic S7 DP/PA Coupler 157-0AD81-0A0
Siemens LMX3B800 800 Amp 600 V 3 Pole Circuit Breaker LMX
Siemens General Duty Switch GNF321 30 Amp 240 V Type 1 Non Fused
Siemens HED41B020 Circuit Breaker 20 Amp 1 Pole *LOT OF 11
Siemens Sentron Series HHFXD63B225 225 Amp 3 Pole 600 V Circuit Breaker
Siemens Type BL B250 50 Amp 2 Pole
Siemens ED43B070 70 Amp 480 V 3 Pole Circuit Breaker
Siemens HNF261 Heavy Duty Safety Switch 30 Amp 600 V 2 Pole Type 1 Enclosure
Siemens 400 Amp Heavy Duty Safety Switch HF325NR 240 V Fusible 3 R
Siemens HED41B020 Circuit Breaker 20 Amp 1 Pole LOT OF 3
Siemens ITE Vacu-Break Switch VMS326B Series A 600 Amp 240 V 3 Pole 3 Ph Fusible
Siemens SITOP Modular 40 A 1/2 ph 6EP1337-3BA00 Power Supply
Siemens 3RH1140-1BB40 Contactor LOT OF 3
Siemens 3RH1140-1AK60 Contactor LOT OF 3
Siemens Sentron LXD63B600 Circuit Breaker 600 Amp 3 Pole 600 Volt LXD 63B 600
Siemens Micromaster 440 Drive 1P 6SE6440-2AD24-0BA1
Siemens Sentron HFD63B175 175 Amp 3 Pole 600 V Circuit Breaker
Siemens 3TF52 Contactor Size 4 120 V Coil
Siemens ITE Sentron Series JXD23B300 300 Amp 240 V 3 Pole Circuit Breaker
Siemens HF222N Heavy Duty Safety Switch 60 Amp 2 Pole 240 V Type 1 Fusible
Siemens SITOP Smart 10A 1 P 6EP 1334-2BA01 Power Supply
Siemens Simatic Scalance X308-2M 1P GK5 308-2GG00-2AA2 V3.2.1
Siemens QJ23B125H 125 Amp 240 V 3 Pole Circuit Breaker
Siemens ITE FXD63B200 Circuit Breaker 200 Amp 600 V 3 Pole With Shunt Trip
ITE Siemens Sentron Series HLD63F600 600 Amp 3 Pole 600V Circuit Breaker W/450
Siemens ED42B020 Circuit Breaker 20 Amp 480 V 2 Pole
ITE Siemens Sentron Series HLD63F600 600 Amp 3 Pole 600 V Circuit Breaker W/450
Siemens Combination Motor Starter 3TF48 With 120V Coil With ITE ED63A100 Breaker
Siemens Simatic Net CP Profibus 443-5DX04-0E0
Siemens ITE Sentron PXD63S160A 1600 Amp 3 Pole 600 V Molded Case Switch
Siemens 250 Amp Panelboard 3R Enclosure S1A30BL080CTS 120/240 1 Ph 3 W W/Main
Siemens Type HLGA 600 Amp Circuit Breaker HLG3F600 600 V 3 Pole
Siemens Sentron Series HLD63F600 600 Amp 600 V 3 Pole Circuit Breaker
Siemens ITE Sentron PXD63S160A 1600 Amp 3 Pole 600 V Molded Case Switch
Siemens GF325N 400 Amp 240 Volt 3P 4W NEMA 1 Fusible General Duty Safety Switch
Siemens Simatic S7 ET200M/link 153-2BA82-0B0
Siemens ITE Plug In Adapter PC5666 1200 Amp 600 V For 3 Pole Circuit Breaker
Siemens Combination Motor Starter 3TB44 With 120V Coil With ITE ED63A030 Breaker
Siemens Combination Motor Starter 3TB44 With 120V Coil With ITE ED63A025 Breaker
Siemens Simatic S7 DP/PA Coupler EX 157-0AD00-0A0
Siemens Type LLGA 600 Amp Circuit Breaker LLG3F600 600 V 3 Pole
Westinghouse FD2100 Circuit Breaker 100 Amp 2 Pole 600 V
Westinghouse Size 1 Starter A201K1CA With 120 V Coil
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With EHB3015 With Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3015 With Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With MCP13300CR 30A With Door
Westinghouse EHD3100 Circuit Breaker 100 Amp 3 Pole 480 V
Westinghouse EHB3040 3 Pole 40 Amp 480 V Circuit Breaker
Westinghouse Size 1 Starter A200M1CAC With 120 V Coil
Westinghouse Size 1 Starter A200M1CACM With 120 V Coil
Westinghouse Size 1 Starter A200M1CACDM With 120 V Coil
Westinghouse Size 1 Starter A200M1CW With 120 V Coil
Westinghouse Size 1 Starter A200M1CAC With 120 V Coil
Westinghouse FD3070 Circuit Breaker 70 Amp 3 Pole 600 V
Westinghouse Type W 18" MCC Size 2 Reversing A900M2AAC 120 V W/ EHD3015 W/ Door
Westinghouse 12" 5 Star Size 1 Motor Control A200M1CAC 120 V With EHB3015 W/Door
Westinghouse Type W 18" Size 3 MCC A200M3CAC 120 V With HFB3070L With Door
Westinghouse KD3400F Circuit Breaker 400 Amp 3 Pole 600 V
Westinghouse Type W 18" Size 1 Reversing MCC A200M1CAC 120V With HFB3015L W/Door
Westinghouse Type W 18" Size 1 Reversing MCC A200M1CAC 120V With HFB3030L W/Door
Westinghouse Type W 18" Size 1 Reversing MCC A200M1CAC 120V W/MCP331000R W/Door
Westinghouse 12" 5 Star Size 1 Motor Control A200M1CAC 120 V W/HMCP015EOC W/Door
Westinghouse 288B940A11A Type CR-11 Directional Overcurrent Relay
Westinghouse Control Transformer 1120631H04 .15 KVA
Westinghouse EHD3040L Circuit Breaker 40 Amp 480 V 3 Pole
Westinghouse Type W 12" MCC Size 2 A200M2CAC 120 V With HFB3025 With Door
Westinghouse Size 2 Starter A200M2CAC With 120 V Coil
Westinghouse FD3050 Circuit Breaker 50 Amp 3 Pole 600 V
Westinghouse KD3400K 400 Amp 600 V 3 Pole Molded Case Switch
Westinghouse 1351D17A01 Type IT Relay
Westinghouse Type W 12" MCC Size 1 A200M1CX 120 V With FB3020
Westinghouse Type W 12" MCC Size 1 A200M1CW 120 V With HFB3015L No Door
Westinghouse Type W 12" Size 1 Reversing MCC AN56DNO 120 V HMCP007C0C & Door
Westinghouse FD3050L Circuit Breaker 50 Amp 3 Pole 600 V
Westinghouse Type W 12" MCC Size 2 A200M2CAC 120 V With HFB3040L With Door
Westinghouse Type W 12" Size 2 MCC A200M2CAC 120 V With MCP23480C 50 A With Door
Westinghouse Type W 18" Size 3 MCC A200M3CAC 120 V With HFB3070L With Door
Westinghouse HFD 3015 15 Amp 3 Pole 600 V Circuit Breaker
Westinghouse FD3030 Circuit Breaker 30 Amp 3 Pole 600 Volt FD 3030
Westinghouse Size 2 Starter A200M2CAC With 120 V Coil
Westinghouse Size 2 Starter A200M2CACDM With 120 V Coil
Westinghouse EHD2040 40 Amp 480 Volt 2 Pole Circuit Breaker EHD 2040
Westinghouse Contact Block OT2B LOT OF 4
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3020L With Door
Westinghouse 12" 5 Star Size 1 Motor Control A200M1CAC 120 V With FD3015 W/ Door
Westinghouse EHB3015 3 Pole 15 Amp 480 V Circuit Breaker
Westinghouse Current Limiter EL3050R
Westinghouse Breaker Feeder Bucket 12" With HFD 25 Amp With Door
Westinghouse HMCP 003 AOC 3 Amp Circuit Breaker
Westinghouse HFB3015 Circuit Breaker 15 Amp 3 Pole 600 V
Westinghouse FDB3100 100 Amp 3 Pole 600 Volt Circuit Breaker FDB 3100
Westinghouse 670B326A09A Type KC-2 Relay
Westinghouse Type W 30" MCC Size 4 A200M4CAC 120 V W/HKA3225F W/175 Trip W/Door
Westinghouse Type W 12" MCC Size 2 A200M2CAC 120 V With HFB3040L With Door
Westinghouse HFB3015L Circuit Breaker 15 Amp 3 Pole 600 V
Westinghouse Overcurrent Relay 264C901A05
Westinghouse Control Transformer .200 KVA 1F0894
Westinghouse WHUN361 30 Amp Safety Switch Non Fuse Stainless Steel
Westinghouse FDB3050 Circuit Breaker 50 Amp 600 Volt 3 Pole FDB
Westinghouse HFD1020 Circuit Breaker 20 Amp LOT OF 3
Westinghouse AB DE-ION Circuit Breaker 600 Amp 600 V 3 Pole With Shunt
Westinghouse EHB3020 3 Pole 20 Amp 480 V Circuit Breaker
Westinghouse Breaker Feeder Bucket 12" With HFD 40 Amp With Door
Westinghouse 2100 12" Breaker Feeder With FB3050 50 Amp
Westinghouse Type W 18" MCC Size 1 Reversing A201K1CA 120 V W/ HFB3015L W/ Door
Westinghouse Type W 18" MCC Size 3 A200M3CAC 120 V With HMCP100R3C With Door
Westinghouse 12" 5 Star Size 1 Motor Control A200M1CAC 120 V W/HMCP007COC W/Door
Westinghouse Type W 12" MCC Size 2 A200M2CAC 120 V With HFB3050L With Door
Westinghouse EB2020 Circuit Breaker 20 Amp 2 Pole 240 V
Westinghouse HFD3100 100 Amp 3 Pole 600 Volt Circuit Breaker HFD 3100
Westinghouse Type W 12" Breaker Feeder Bucket With HMCP100R3C With Door
Westinghouse A201K0CA Size 0 120 V Contactor Enclosure
Westinghouse HMCP003AOC 3 Amp 600 V Circuit Breaker 3 Pole
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3020L With Door
Westinghouse EHD2100 Circuit Breaker 2 Pole 100 Amp 480 Volt EHD 2100
Westinghouse 24" Type W Size 4 Motor Control A200M4CAC 120 V W/HMCP150 W/ Door
Westinghouse HKD3400F Circuit Breaker 400 Amp 600 V 3 Pole
Westinghouse MCP0315R 600V 15Amp 3 Pole Circuit Breaker
Westinghouse Type MG-6 Auxiliary Relay Style 1963439
Westinghouse HKD3400F Circuit Breaker 400 Amp 600 Volt 3 Pole 250 Amp Trip HKD
Westinghouse 12" 5 Star Size 1 Motor Control A200M1CAC 120 V W/HMCP030H1C W/Door
Westinghouse EHB2015 15 Amp 2 Pole Circuit Breaker
Westinghouse JA3150 150 Amp 3 Pole 600 V Circuit Breaker
Westinghouse 2100 Motor Control Bucket 12" Size 1
Westinghouse Current Transformer Ratio 600:5A P/N 4710A55H03
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3030L With Door
Westinghouse Type W 12" MCC Size 1 A200M1CACDM 120 V With HFB3015L With Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3040L With Door
Westinghouse A200M3CACD2 Size 3 Starter With 120 V Coil
Westinghouse ED3175 175 Amp 3 Pole 240 V Circuit Breaker
Westinghouse PC32000F 3 Pole 600 V 2000 Amp With Shunt
Westinghouse MCP0322CR Circuit Breaker 3 Amp 3 Pole 600 V
Westinghouse A200M4CAC Size 4 Starter With 120 V Coil
Westinghouse EHD3050 Circuit Breaker 50 Amp 600 Volt 3 Pole EHD
Westinghouse EHD2030L 30 Amp 480 Volt 2 Pole Circuit Breaker EHD 2030 L
Westinghouse HMCP003AOC 3 Amp 3 Pole 600 V Circuit Breaker Gray
Westinghouse A200M1CAC Size 1 120 V Starter Enclosure
Westinghouse Type W 18" MCC Size 3 A200M3CAC 120 V With HFB3100L With Door
Westinghouse EHD3070 Circuit Breaker 70 Amp 480 V 3 Pole EHD 3070
Westinghouse Type W 42" MCC Size 5 AN16SNO 120 V W/ HLA3400F W/ 400 Trip W/ Door
Westinghouse HND Mounting Hardware
Westinghouse HFD 3060 L 60 Amp 3 Pole 600 V Circuit Breaker
Westinghouse Type BA 20 Amp 1 Pole Circuit Breakers LOT OF 4
Westinghouse HMCP007COC B Circuit Breaker 7 Amp 600 V 3 Pole
Westinghouse EHB3030 3 Pole 30 Amp 480 V Circuit Breaker
Westinghouse A201K1BA Size 1 120 V Coil Contactor
Westinghouse A201 K1AA Size 1 Contactor Model J 120 Vlt
Westinghouse A200M0CAC Size 0 Starter With 120 V Coil
Westinghouse MCP13300R Circuit Breaker 30 Amp 600 V 3 Pole
Westinghouse HF3030 Circuit Breaker 30 Amp 600 V 3 Pole
Westinghouse FB3150 150 Amp 3 Pole Circuit Breaker 600 V
Westinghouse FD3040L 40 Amp Circuit Breaker
Westinghouse HJD3250F 250 Amp Circuit Breaker 200 Amp Trip 600 Volt 3 Pole HJD
Westinghouse Type W 30" MCC Size 4 A200M4CX 120 V W/HKA3225F W/225 Trip W/Door
Westinghouse HFD3050L 50 Amp 600 V 3 Pole Breaker
Westinghouse EHD3020 Circuit Breaker 20 Amp 600 Volt 3 Pole EHD
Westinghouse MCP0358R Circuit Breaker 7 Amp 3 Pole 600 V
Westinghouse FD3060L Circuit Breaker 60 Amp 3 Pole 600 V
Westinghouse 2100 12" Size 1 Motor Control With A200M1CAC With FD3060 60 Amp
Westinghouse HMCP003AOC 3 Amp 3 Pole 600 V Circuit Breaker
Westinghouse Synchro-Verified Relay 293B285A09
Westinghouse Cutler Hammer F10 12" Size 2 MCC With A10CNO With MCP23480R 50 Amp
Westinghouse AB DE ION Circuit Breaker 100 Amp 3 Pole
Westinghouse IQ Data Power Supply Style # 9966D75G02
Westinghouse HMCP030HIC Circuit Breaker 30 Amp 3 Pole 600 Volt HMCP
Westinghouse HND312T33W Circuit Breaker 1200 Amp 3 Pole 600 V With 800 Trip
Westinghouse AB DE ION Circuit Breaker MF3030V 30 Amp 3 Pole 600 V
Westinghouse Type W 18" MCC Size 2 Reversing AN56GNO 120 V W/HMCP100R3C W/Door
Westinghouse 12" 5 Star Sz 1 Motor Control AN56DNO Reversing 120V HMCP 7A W/Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With FB3020
Westinghouse Mounting Bracket/Hardware for HLD3600F Circuit Breaker
Westinghouse Electronic Timer Type TRN 1B Volt 120 AC
Westinghouse MA3800F Circuit Breaker 800 Amp 3 Pole 600 V With 300 Amp Trip
Westinghouse KD3400F Circuit Breaker 400 Amp 3 Pole 600 V
Westinghouse Type W 18" MCC Size 3 A200M3CAC 120 V With HMCP100R3C With Door
Westinghouse HMCP100L3C Circuit Breaker 100 Amp 600 V 3 Pole w/ Auxiliary HMCP
Westinghouse EL3150R Current Limiter Assemby
Westinghouse Type W 18" MCC Size 3 A200M3CAC 120 V With HFD3100L With Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3015L With Door
Westinghouse Type W 12" MCC Size 1 A200M1CAC 120 V With HFB3015L With Door
Westinghouse Type W 12" MCC Size 1 A200M1CACDM 120 V With MCP03150 15 Amp W/Door
Westinghouse EB2020 20 Amp 2 Pole 240 V Circuit Breaker
Westinghouse FB3150 Circuit Breaker 150 Amp 3 Pole 600 V
Westinghouse HMCP007COC Circuit Breaker 7 Amp 600 V 3 Pole
Westinghouse 36" Motor Control Bucket Size 5 With MCP 250 Amp Breaker Reset
