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室内级单通道4~20mA电流环路保护器,DIN轨道安装式,24V

貨品號碼 HGLND-CL1-24
庫存
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價格表 (未稅)
數量 價格
1 - 9 ¥699.10
10 - 24 ¥657.15
25 - 99 ¥615.20
100 + 请来电垂询
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描述

The HGLND-CL1-24 is a high performance 3-stage DIN mountable indoor protector that provides superior protection of differential or common mode lines from transients and surges. These units will protect a single 4-20 mA circuit.

The first stage is comprised of a differential gas discharge tube. Stage two is a pair of current limiting series resistors and the final stage is a low capacitance diode array. The use of three terminal differential gas discharge tubes provides superior common and differential mode protection against conducted transients versus the use of lower cost two terminal tubes. The second stage series resistance limits the power dissipation of the fast diode clamp array in the third stage. This allows time for the slower but higher power gas tubes to flash over. The diode array clamps the leading edge of fast transients to safe levels until the high power gas tubes turn on. This eliminates the damaging leading edge spike that single stage gas tube protectors let leak through. The diode array's low capacitance assures that the suppressor will not degrade the high-speed signals. The 3-stage design can handle higher-level transients than a protector that uses only diodes.

The HGLND-CL1-24 is designed to convert into a failsafe mode in the rare case of a catastrophic surge or lightning event. For this mode, the resistors in the second stage will fuse and portions of the diode array will short. This effectively disconnects the line from sensitive equipment thus limiting damage. The units are factory repairable.

This unit can be mounted to a DIN 3 rail using the DIN mounting clip located on the rear of the unit.

For additional information and complete specifications, click on the Data Sheet link below.


特征
  • 可安装于DIN-3导轨
  • 优于仅基于二极管或TVS的设计
  • 铸铝结构,带螺丝端子板
  • 除本型号外,还提供12V和15V两种型号
應用
  • 4~20mA传感器和控制器
  • 工业过程控制
  • HART路灯控制器
  • 收费亭、吊桥及铁路道口和信号
  • 脉冲输入电路

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