2126322F
日期：2018-7-121 MBR工艺简介1.1 MBR含义
MBR为膜生物反应器（Membrane Bio-Reactor）的简称,是一种将膜分离技术与生物技术有机结合的新型水处理技术，它利用膜分离设备将生化反应池中的活性污泥和大分子有机物截留住，省掉二沉池。膜-生物反应器工艺通过膜的分离技术大大强化了生物反应器的功能，使活性污泥浓度大大提高，其水力停留时间（HRT）和污泥停留时间（SRT）可以分别控制。
在传统的污水生物处理技术中，泥水分离是在二沉池中靠重力作用完成的，其分离效率依赖于活性污泥的沉降性能，沉降性越好，泥水分离效率越高。而污泥的沉降性取决于曝气池的运行状况，改善污泥沉降性必须严格控制曝气池的操作条件，这限制了该方法的适用范围。由于二沉池固液分离的要求，曝气池的污泥不能维持较高浓度，一般在 1.5~3.5g/L 左右，从而限制了生化反应速率。水力停留时间（ HRT ）与污泥龄（ SRT ）相互依赖，提高容积负荷与降低污泥负荷往往形成矛盾。系统在运行过程中还产生了大量的剩余污泥，其处置费用占污水处理厂运行费用的 25% ～ 40% 。传统活性污泥处理系统还容易出现污泥膨胀现象，出水中含有悬浮固体，出水水质恶化。
MBR 工艺通过将分离工程中的膜分离技术与传统废水生物处理技术有机结合，不仅省去了二沉池的建设，而且大大提高了固液分离效率，并且由于曝气池中活性污泥浓度的增大和污泥中特效菌 ( 特别是优势菌群 ) 的出现，提高了生化反应速率。同时，通过降低 F/M 比减少剩余污泥产生量（甚至为零），从而基本解决了传统活性污泥法存在的许多突出问题。
1.2优势
1、高效的固液分离，出水水质优质稳定。
2、剩余污泥产量少 占地面积小。
3、无需二沉池，工艺设备集中。
4、可去除氨氮及难降解有机物。
5、克服了传统活性污泥法易发生污泥膨胀的弊端。
1.3发展前瞻
1.现有城市污水处理厂的更新升级
2.无排水管网系统地区的污水处理，如居民点、旅游度假区、风景区等。
3.有污水回用需求的地区或场所，如宾馆、洗车业、客机、流动厕所等 。
4.高浓度、有毒、难降解工业废水处理。如造纸、制糖、皮革等行业
5.垃圾填埋厂渗滤液的处理及回用6.小规模污水厂（站）的应用。
开启原水泵，污水可以进入集水池，当集水池的液位非低液位状态时，自动启动提升泵，开始往膜池送水，同时，搅拌器开始工作，风机启动，至此，自动控制准备就绪。各电机自动根据液位做相应的开启和停止。具备产水，反洗，和化学清洗的条件。
风机启动后，且膜池处于非低液位状态下，打开产水进阀和产水出阀，启动产水泵，开始进行产水的过程。运行指定时间后，打开反洗进水阀和出水阀，开始进行反洗的过程。反洗指定时间后，重新开始产水过程。如此循环运行。
当压差超过负设定值（参数界面中），或设备连续运行指定时间后，则开启化学清洗阀，停止产水泵，1秒钟后，开启化学泵，开始化学清洗过程，化学清洗时间到达后，开启反洗阀，关闭化学清洗泵，1秒钟后开启反洗泵，运行10分钟反洗。
反洗工作结束后，重新进入产水过程。如此循环运行。
当生产现场有紧急情况时，按下控制柜上的急停按钮，PLC停止输出，所有电机及阀门关闭。紧急情况解除后，复位急停按钮，系统回到手动状态，确认具体正常生产条件后，选择自动开启，继续生产。
当点击停止按钮时，系统会停止产水泵和产水阀，进行最后一次反洗，反洗结束后，停止所有电机及阀门，系统恢复为手动档位。
以下为部分程序示例。
自动模式下，两台风机轮流启动，切换时间在触摸屏上设置。
当压力超过负设定或者运行达到设定时间后，启动化学清洗。程序如下：
项目总结 通过该项目的实际测试，海为PLC能够完成设备的控制要求，主要优点如下：
1、 价格与国外品牌PLC相比，优势明显。在满足该控制要求的前提下，价格仅为国外品牌一半，甚至更低。
2、 软件操作性好，非常容易入手。界面设置合理。操作方便。软件本身的文件非常小，仅40多兆，而且集成了模拟功能，这么小的软件能实现这么强的模拟功能实属不易，适合学习。
3、 模拟量编程简单。
4、 系统自带的程序比较齐全，适合学习和借用。
5、 数字量输入是双向输入型,NPN,PNP都可以。
相对不足的地方有：
1、 编程线为串口线，现在大部分的笔记本不是自带串口，用USB转接线，稳定性又不好，建议做USB口的编程线。
2、 不能在线修改PLC程序。
3、 我使用的这款PLC有些指令不支持，如MC和MCR等。
4、 相关的手册不够齐全，建议分为硬件操作手册和软件编程手册，详细讲解海为PLC。
5、 PLC掉电后在软件界面看不出提示。依旧是联机状态。
由于时间关系，不能对海为PLC做更多的深入了解和使用，随着以后的项目，会更多的了解其他功能。总的来说，这是一款性价比较高的产品，值得推广。厂家也应该再接再厉，更好的做好民族品牌。
咨询热线：18105962658（林工）
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手机 ：18105962658(微信同步）
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*所有备件的质保期均为1年，经过专业测试认证。
*如果您需要订购产品超过1件，请与我们联系，我们可以为您提供折扣。
*我们仅采用快递方式递送备件。（顺丰）
*如果您发现其他供货商为相同产品提供更为低廉的价格，我们也愿意参照其价格向您提供进一步的折扣。如果还有其他任何问题，请随时与我们联系。
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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。
4：Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。
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。
11：Yaskawa（安川）：伺服控制器、伺服马达、伺服驱动器。
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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FERRAZ SHAWMUT A100Z600-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT TRS-R-250
NEW IN BOX! FERRAZ SHAWMUT 200A 3-POLE 600V FUSE HOLDER 62003J
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Gould Ferraz Shawmut Mersen A070F8525FX NSNP **GENUINE**
Gould Ferraz Shawmut Mersen A4J400 NSFP **GENUINE** A4J 400
FERRAZ SHAWMUT 9F60BDD002 (Surplus New In factory packaging)
FERRAZ SHAWMUT 9F60BDD001 (Surplus New In factory packaging)
Gould Ferraz Shawmut Mersen A2K125R NSFP **GENUINE**
Gould Ferraz Shawmut Mersen A2K175R NSFP **GENUINE**
FERRAZ SHAWMUT 66043
FERRAZ, A070URD33LI0550, Semiconductor Square Body Fuses 700V/550A L300229
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Ferraz Shawmut, 66592, 175a 6-14awg Power Distribution Block Wiring 600V Gould
FERRAZ 500 VOLT Inductor Fuse Block Assembly Ref: R95143 am: 315A T2
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Gould Ferraz Shawmut Mersen A4BX400 NSFP **GENUINE**
FERRAZ SHAWMUT 66063
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FERRAZ SHAWMUT 225-007-976
Mersen/Ferraz Shawmut 400A Time Delay Class RK5 Fuse 600VAC/DC, TRS400R
FERRAZ SHAWMUT A4BQ1600 (Surplus New not in factory packaging)
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Gould Ferraz Shawmut Mersen OTS500 NSFP **GENUINE** OTS 500
Gould Ferraz Shawmut Mersen OTS500 NSNP **GENUINE** OTS 500
FERRAZ SHAWMUT 66003 (Surplus New In factory packaging)
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Gould Ferraz Shawmut Mersen RFS400 NSNP **GENUINE**
Gould Ferraz Shawmut Mersen RFS400 NSFP **GENUINE**
FERRAZ SHAWMUT X79232
FERRAZ SHAWMUT PC32UD69V400D1A (Surplus New In factory packaging)
NEW FERRAZ SHAWMUT MPDB69143 DISTRIBUTOR BLOCK
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FERRAZ SHAWMUT EJFS303RS0 (Surplus New In factory packaging)
FERRAZ SHAWMUT 6BODKC3URGG32TTC450 (Surplus New not in factory packaging)
FERRAZ SHAWMUT RF175 (Surplus New In factory packaging)
FERRAZ SHAWMUT A60X600-4
FERRAZ SHAWMUT A60X450-4
LOT OF 6 FERRAZ SHAWMUT US3J31 K214967 30A ULTRASAFE PLC CONTROLLER BC
FERRAZ SHAWMUT MG24-15A
FERRAZ SHAWMUT FUSEBLOCK FBJ30CDT FUSE BLOCK FUSERBLOC
FERRAZ SHAWMUT MPDB66023 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 1021-CP-URB-27.60-80
FERRAZ SHAWMUT A70P200-4 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT A70Q250-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A70Q350-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A6Y125-3
FERRAZ SHAWMUT 11260
Ferraz D76386-660 Protistor Fuse C4URGB 15669 - New No Box
FERRAZ SHAWMUT TRS300R (Surplus New not in factory packaging)
FERRAZ SHAWMUT 66492
FERRAZ SHAWMUT TRS-250 (Surplus New In factory packaging)
FERRAZ SHAWMUT 225-007-977
FERRAZ SHAWMUT 228-700-530 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A2-70C450-4S (Surplus New not in factory packaging)
Ferraz ACK 200 Shawmut ACK200 Fuse (Pack of 6) - New No Box
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Ferraz / Shawmut 66611 Power Distribution Block - New No Box
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FERRAZ SHAWMUT A70P350-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A070URD32KI0630
FERRAZ SHAWMUT 69113
FERRAZ SHAWMUT Z300655 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A050FC450HI (Surplus New not in factory packaging)
CARBONE FERRAZ 800A 600VMAX 32MMX165MM
FERRAZ SHAWMUT A50P1000-4
FERRAZ SHAWMUT D15A030 (Surplus New not in factory packaging)
NEW FERRAZ SHAWMUT 69113 DISTRIBUTION BLOCK
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Gould Ferraz Shawmut Mersen E301833 NSNP **GENUINE** E301 833
Ferraz Shawmut A50P800-4 800A 500V Amp-Trap Fuse
Ferraz Shawmut A50P700-4 700A 500V Amp-Trap Fuse
FERRAZ SHAWMUT OTS-600 (Surplus New not in factory packaging)
Protistor PC33UD60V1600TF 600VAC 1600A aR z300586 ferraz shawmut (NSS)
FERRAZ SHAWMUT A70Q350-4EX (Surplus New In factory packaging)
FERRAZ SHAWMUT A70Q450-4EX (Surplus New In factory packaging)
FERRAZ SHAWMUT 9F60BBB002 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69153 (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen A070F600 NSNP **GENUINE**
ferraz shawmut a055f1d0r0 125e 125e amps 5.5kv meresen nos free shipping
FERRAZ SHAWMUT A4BY800 (Surplus New In factory packaging)
FERRAZ SHAWMUT 66662
FERRAZ SHAWMUT A2-66S450D1 (Surplus New In factory packaging)
FERRAZ SHAWMUT 69083 (Surplus New In factory packaging)
FERRAZ SHAWMUT 9F60BDD002 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A2K600 (Surplus New In factory packaging)
Gould Ferraz Shawmut Mersen A6K175 NSNP **GENUINE**
Gould Ferraz Shawmut Mersen A50P4504 NSNP **GENUINE**
FERRAZ SHAWMUT 69183 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 66413
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FERRAZ SHAWMUT A100P200-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 66433
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Gould Ferraz Shawmut Mersen A70Q3504 NSFP **GENUINE**
FERRAZ SHAWMUT 622
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FERRAZ SHAWMUT 66592
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FERRAZ SHAWMUT A60X50 (Surplus New not in factory packaging)
FERRAZ SHAWMUT J300020 (Surplus New not in factory packaging)
FERRAZ SHAWMUT Z300701 (Surplus New In factory packaging)
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FERRAZ SHAWMUT 69163 (Surplus New not in factory packaging)
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Ferraz Shawmut LBSR125 General Purpose Switch
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Carbone Ferraz A070F700 Fuse -
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FERRAZ SHAWMUT 66563
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FERRAZ SHAWMUT 66023
FERRAZ SHAWMUT 66013
FERRAZ SHAWMUT A2Y600-4
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Ferraz Shawmut Fuse A70Q600
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Gould Shawmut Ferraz Trionic TR15R Fuse (Pack of 6)
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FERRAZ SHAWMUT 69653
FERRAZ SHAWMUT A4J450 (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen 69013 NSFP **GENUINE**
Gould Ferraz Shawmut Mersen AJT600 NSNP **GENUINE** AJT 600
FERRAZ SHAWMUT TRS-600
3 x Ferraz Shawmut AJT250 Time Delay Fuses
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FERRAZ SHAWMUT 66112
FERRAZ SHAWMUT 69133 (Surplus New In factory packaging)
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Ferraz Protistor M300069 Fuse 660-700VAC 630A 6.6 URD 32 TTF 0630 New
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FERRAZ SHAWMUT A70Q400-4
FERRAZ SHAWMUT A70Q250-4
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FERRAZ SHAWMUT A2D500R
FERRAZ SHAWMUT ATS-DE200R
FERRAZ SHAWMUT TRS300R
FERRAZ SHAWMUT 62051 (Surplus New In factory packaging)
New Ferraz Shawmut Large Power Distribution Block - 69191
FERRAZ SHAWMUT 69543
FERRAZ SHAWMUT A2Y150-3
FERRAZ SHAWMUT 225-007-972 (Surplus New not in factory packaging)
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FERRAZ SHAWMUT A070UD72LI500
FERRAZ SHAWMUT A070UD72LI500
FERRAZ SHAWMUT RF125 (Surplus New In factory packaging)
FERRAZ SHAWMUT 66263 (Surplus New In factory packaging)
Nihon-Ferraz 6000 Fuse -
FERRAZ SHAWMUT C300658
FERRAZ SHAWMUT Z300655
FERRAZ SHAWMUT A050FD700HI
Gould Ferraz Shawmut Mersen A6K400R NSFP **GENUINE** A6K 400R
Gould Ferraz Shawmut Mersen A6K400R NSNP **GENUINE**
Ferraz protistor Fuse 1400a 380v Type: 34598-jf b84940 Fuse 3.8 Bodk c3
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FERRAZ SHAWMUT A70Q450-4EX (Surplus New not in factory packaging)
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10 NEW FERRAZ SHAWMUT A2K-30R FUSES A2K30R
10 NEW FERRAZ SHAWMUT A6Y20-11 FUSES A6Y2011
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GOULD FERRAZ GOULD SHAWMUT A70P200-4TA AMPTRAP 200 AMP FUSE NEW NO BOX (B12)
FERRAZ SHAWMUT A70Q250 (Surplus New not in factory packaging)
FERRAZ SHAWMUT OTS-300 (Surplus New In factory packaging)
FERRAZ SHAWMUT W300054 (Surplus New In factory packaging)
NNB FERRAZ SHAWMUT FUSE BLOCK 30A 30 AMP A FBCC304SO
NNB FUSES Ferraz Shawmut Fuse ACK-140 140 Amp, 125 V Fuse Lot of 2
FERRAZ SHAWMUT CRS300 (Surplus New In factory packaging)
FERRAZ SHAWMUT CRS350 (Surplus New In factory packaging)
FERRAZ SHAWMUT TRS-225
FERRAZ SHAWMUT 69013 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A4BY1600
Gould Ferraz Shawmut Mersen A60C225121 NSFP **GENUINE**
FERRAZ SHAWMUT HSJ110 (Surplus New In factory packaging)
FERRAZ SHAWMUT HSJ175 (Surplus New In factory packaging)
FERRAZ SHAWMUT A70QS300-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 66651 (Surplus New In factory packaging)
FERRAZ SHAWMUT A70QS250-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69012 (Surplus New In factory packaging)
FERRAZ SHAWMUT A70QS400-4 (Surplus New not in factory packaging)
FERRAZ SHAWMUT AJT250 (Surplus New not in factory packaging)
FERRAZ SHAWMUT MPDB69143 (Surplus New not in factory packaging)
FERRAZ SHAWMUT J15P3T2002 (Surplus New In factory packaging)
FERRAZ SHAWMUT MPDB69561 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69313 (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen A4J400 NSNP **GENUINE**
FERRAZ SHAWMUT 69183
FERRAZ SHAWMUT J426 (Surplus New In factory packaging)
FERRAZ SHAWMUT AJT450 (Surplus New In factory packaging)
Mersen/Ferraz Shawmut 500A Time Delay Class RK5 Fuse 250VAC/160VDC, TR500R
Shawmut CNL 500 Ferraz CNL500 Fuse Pack Of 6 - New No Box
Gould Ferraz Shawmut Mersen A270C3004S NSFP **GENUINE**
FERRAZ SHAWMUT PC32UD69V700TF (Surplus New In factory packaging)
FERRAZ SHAWMUT Z300701 (Surplus New not in factory packaging)
FERRAZ SHAWMUT Y300700 (Surplus New not in factory packaging)
FERRAZ SHAWMUT R300004
FERRAZ SHAWMUT Q300003
FERRAZ SHAWMUT 69633
Mersen/Ferraz Shawmut 125A Time Delay Class RK5 Fuse 600VAC/DC, TRS125RID
FERRAZ SHAWMUT A6D600R (Surplus New In factory packaging)
FERRAZ SHAWMUT RF110 (Surplus New In factory packaging)
Ferraz Shawmut p300002 protistor 250a 690vac-worn/
Gould Ferraz Shawmut Mersen D330168 NSNP **GENUINE**
FERRAZ SHAWMUT A2K450 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A60X50
FERRAZ SHAWMUT A4BY800 (Surplus New not in factory packaging)
FERRAZ SHAWMUT J300020
FERRAZ SHAWMUT 9F60BBD905
Ferraz Q300509 Protisor 1250 Volt AC 630 Amp Fuses LOT OF 3 - NIB
FERRAZ SHAWMUT A4BX125-150 (Surplus New In factory packaging)
FERRAZ SHAWMUT OTS-600
FERRAZ SHAWMUT 1021-CP-URB-27.60-25
FERRAZ SHAWMUT 69132 (Surplus New In factory packaging)
FERRAZ SHAWMUT A50QS150-4Y (Brand New Current Factory Packaging)
FERRAZ SHAWMUT AO70F600
FERRAZ SHAWMUT AGK150
FERRAZ SHAWMUT HSJ150 (Surplus New In factory packaging)
FERRAZ SHAWMUT HSJ125 (Surplus New In factory packaging)
FERRAZ SHAWMUT TR600R (Surplus New not in factory packaging)
AMP A15QS130-4 Trap Ferraz Shawmut (Pack of 3) - New No Box
FERRAZ SHAWMUT FBJ30SO (Surplus New In factory packaging)
Carbone Ferraz A050F300 Fuse (Pack of 3) -
FERRAZ SHAWMUT 69123
FERRAZ SHAWMUT A60C40-121 (Surplus New In factory packaging)
FERRAZ SHAWMUT 69133 (Surplus New not in factory packaging)
FERRAZ SHAWMUT CRN500 (Surplus New In factory packaging)
ABB, 1SBL141001R8410, A9-30-10, & 1SAX111001R1104 E16DU-6.3 Ferraz 3-TR70R 250V
MERSEN FERRAZ SHAWMUT 67483 , 3 POLE POWER DISTRIBUTION BLOCK
Gould Ferraz Shawmut Mersen A70Q3504 NSNP **GENUINE**
FERRAZ SHAWMUT TRS-250
FERRAZ SHAWMUT A50P250-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A30QS150-4L (Brand New Current Factory Packaging)
Gould Ferraz Shawmut Mersen TR500 NSNP **GENUINE**
FERRAZ SHAWMUT RF125 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A60X350-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A70P350-4
Mersen/Ferraz Shawmut 350A Time Delay Class RK5 Fuse 250VAC/DC, TR350RID
FERRAZ SHAWMUT 44-0078-00
FERRAZ SHAWMUT A70P300-4
FERRAZ SHAWMUT A050F400 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A83N61 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A2-100C400D1 (Surplus New not in factory packaging)
FERRAZ SHAWMUT AJT125 (Surplus New In factory packaging)
FERRAZ SHAWMUT A070URD32TTI0450 (Surplus New not in factory packaging)
FERRAZ SHAWMUT OTS-300 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A50QS600-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT CRS300 (Surplus New not in factory packaging)
FERRAZ SHAWMUT CRS350 (Surplus New not in factory packaging)
FERRAZ SHAWMUT G79218
FERRAZ SHAWMUT S101307CF00
FERRAZ SHAWMUT E-79216
FERRAZ SHAWMUT JTD-250-ID (Surplus New not in factory packaging)
Ferraz Shawmut Time Delay Fuse & Holder TRS70R & 61038
FERRAZ SHAWMUT A60X225-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A60X400-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT TRS-350
FERRAZ SHAWMUT ST208SPG
FERRAZ SHAWMUT 62051R
Gould Ferraz Shawmut Mersen A70P4004TA NSNP **GENUINE**
FERRAZ SHAWMUT CRS125 (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen OTS350 NSNP **GENUINE**
Gould Ferraz Shawmut Mersen A50P350 NSNP **GENUINE**
FERRAZ SHAWMUT 69092 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69012 (Surplus New not in factory packaging)
FERRAZ SHAWMUT R412 (Surplus New In factory packaging)
FERRAZ SHAWMUT 66093
FERRAZ SHAWMUT A270C-700AT (Surplus New In factory packaging)
Ferraz, D300130, A070URD30KI0100, Semiconductor Square Fuse 100 Amp Protistor 70
FERRAZ SHAWMUT 69143 LARGE PDB 600V
FERRAZ SHAWMUT 69083
FERRAZ SHAWMUT A050FC600HI (Surplus New not in factory packaging)
FERRAZ SHAWMUT A70QS350-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A70QS300-4
FERRAZ SHAWMUT HS-R175
FERRAZ SHAWMUT OT-300 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT OT-250 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT OT-400 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT US-2-23I (Surplus New In factory packaging)
Mersen/Ferraz Shawmut 110A Time Delay Class J Fuse 600VAC/500VDC, AJT110
FERRAZ SHAWMUT A70QS250-4
FERRAZ SHAWMUT A2D300R (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen TR600R NSFP **GENUINE** TR 600 R
FERRAZ SHAWMUT PSI27.60PRE (Surplus New not in factory packaging)
FERRAZ SHAWMUT A70QS400-4
FERRAZ SHAWMUT 69023
Shawmut RF250 Gould Ferraz Fuse - New No Box
FERRAZ SHAWMUT PC32UD69V700TF (Surplus New not in factory packaging)
Ferraz Shawmut A4BT800 Time Delay Fuse 600Vac
FERRAZ SHAWMUT A50P700-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A4BQ1000 (Surplus New In factory packaging)
FERRAZ SHAWMUT 69313
FERRAZ SHAWMUT RF175 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69172 (Surplus New In factory packaging)
FERRAZ SHAWMUT 44-0073-00
FERRAZ SHAWMUT X300699
FERRAZ SHAWMUT Y300700
FERRAZ SHAWMUT OTS400 **NIB**
FERRAZ SHAWMUT AJT450 (Surplus New not in factory packaging)
FERRAZ SHAWMUT 69283
FERRAZ SHAWMUT 69182 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A1550X50E-1 (Surplus New not in factory packaging)
Gould Ferraz Shawmut Mersen A480T2E NSNP **GENUINE**
Gould Ferraz Shawmut Mersen A6D125R NSFP **GENUINE**
FERRAZ SHAWMUT A70QS-400-4K
FERRAZ SHAWMUT A50QS450-4 (Surplus New In factory packaging)
FERRAZ SHAWMUT A50P-350
Gould Ferraz Shawmut Mersen R212075 NSNP **GENUINE**
FERRAZ SHAWMUT A60C300-121 (Surplus New In factory packaging)
FERRAZ SHAWMUT A4BY800
FERRAZ SHAWMUT A25X1000-128 (Surplus New In factory packaging)
Ferraz Shawmut Surge Protective Device STP2301PGM, Surge-Trap Pluggable SP275U
Ferraz Shawmut A25X2500-128TA 2500 Amp, 250V Amp Trap, A25X2500128TA, CSQ
FERRAZ SHAWMUT 66591
FERRAZ SHAWMUT OTS-350
FERRAZ SHAWMUT RFS70 (Surplus New In factory packaging)
***NEW*** FERRAZ SHAWMUT ST2083PY 120/208 V 3-PH WYE SURGE TRAP TPMOV TECHNOLOGY
Shawmut A100P600-4TI 600A 1000V fuse Gould Ferraz Marsen 4t1 amptrap
Gould Ferraz Shawmut Mersen A70QS1504 NSNP **GENUINE**
FERRAZ SHAWMUT A70P400
FERRAZ SHAWMUT TR600R
FERRAZ SHAWMUT TR450R
FERRAZ SHAWMUT A25X300-4 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT 69312 (Surplus New In factory packaging)
* FERRAZ SHAWMUT PC32UE75V630I 750VAC URE 630A PROTISTOR ......... VI-42
Ferraz Shawmut E301465 1300 volt and 600 amp Fuse NEW old stock
Gould Ferraz Shawmut Mersen 69082 NSFP **GENUINE**
Ferraz Shawmut protistor pc31ud69v250ef 690vac 250a
Gould Ferraz Shawmut Mersen OTS600 NSNP **GENUINE**
Gould Ferraz Shawmut Mersen CJ175 NSNP **GENUINE**
FERRAZ SHAWMUT A3-70C800AT1 (Surplus New In factory packaging)
FERRAZ SHAWMUT 69153
FERRAZ SHAWMUT 69133
FERRAZ SHAWMUT A050F-600 (Surplus New not in factory packaging)
FERRAZ SHAWMUT A100P100-4TI (Surplus New In factory packaging)
Gould Ferraz Shawmut Mersen A270C3004S NSNP **GENUINE**
FERRAZ SHAWMUT A50P125-4 (Brand New Current Factory Packaging)
FERRAZ SHAWMUT 66581
FERRAZ SHAWMUT CL-800 (Surplus New In factory packaging)
FERRAZ SHAWMUT J88512
FERRAZ SHAWMUT 66400 *NEW NO BOX*