PENTEK FILTER 3F11 800000919是工业EMI电源滤波器，额定250VAC、20A，用于抑制电源线上高频电磁干扰，保护机架内精密板卡稳定运行。

PENTEK FILTER 3F11 800000919 is industrial EMI power line filter, rated 250VAC, 20A, used to suppress high-frequency noise and protect precision boards in control racks.

最高60dB插入损耗，支持-40~85℃宽温，面板式IP20结构，拥有UL、CE、RoHS认证，适配VME机箱、CNC、DCS控制柜等强干扰场景。

It provides up to 60dB insertion loss, wide temperature -40~85℃, IP20 panel mount, UL/CE/RoHS certified, suitable for VME chassis, CNC and DCS cabinets with heavy noise.

Main Specifications 技术参数

• 1. Product Series / 产品系列：Pentek EMI Filter Series

• 2. Part Numbers / 型号编码：3F11，800000919

• 3. Function Type / 类型：EMI Power Line Filter 电源EMI滤波器

• 4. Key Features / 特性：250VAC 20A, 60dB max attenuation, -40~85℃, IP20, UL CE RoHS

• 5. Compatibility / 配套：VME机箱、工控电源、DCS/PLC控制柜、CNC主轴驱动单元

Core Functions 核心功能

• 1. 电源端高频电磁干扰滤除，抑制变频器、伺服产生的传导噪声。
  Filter high-frequency EMI on power line, suppress conducted noise from inverters and servo drives.

• 2. 双向噪声抑制，既阻挡外部干扰进入设备，也防止设备噪声外泄。
  Bidirectional noise suppression, block external interference and prevent internal noise from spreading out.

• 3. 宽温稳定输出，在高低温工业环境下保持滤波性能不衰减。
  Stable performance under wide temperature range, filter effect will not degrade in harsh industrial sites.

• 4. 面板安装结构，接线简单，便于控制柜内快速集成与后期更换。
  Panel mounting design, simple wiring, easy integration and replacement inside control cabinets.

• 5. 符合国际安规标准，满足出口项目电磁兼容合规要求。
  Compliant with international safety standards, meet EMC requirements for export automation projects.

Application Scenarios 应用场景

• 1. VME总线单板计算机机箱电源滤波，如MVME5500等主控机架。
  Power filtering for VME SBC chassis, such as racks with MVME5500 controller.

• 2. CNC数控加工中心、伺服主轴驱动控制柜电磁噪声治理。
  EMI noise control for CNC machining center and servo spindle drive cabinets.

• 3. 石油天然气、化工现场DCS、PLC系统电源入口防护。
  Power inlet protection for DCS and PLC systems in oil & gas and chemical plants.

• 4. 轨道交通、船舶电控柜，高可靠电磁兼容配套备件。
  EMC spare parts for rail transit and marine electrical control cabinets.

• 5. 自动化设备改造项目，解决信号跳变、通讯间歇性故障问题。
  Retrofit of automation equipment to fix signal jumping and intermittent communication faults.

FAQ 常见问答

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