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ResourcesPower system single-line symbols (IEC 60617)

Relay, time overcurrent (51) symbol (DWG block)

Relay, time overcurrent (51) is a ready-to-use AutoCAD block named PWR_R_51 in the Power system single-line symbols (IEC 60617), group “Protection relays”. It carries 10 attributes, 2 of them visible, so it works in equipment lists and BlockSync exports.

Relay, time overcurrent (51) symbol, block PWR_R_51
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Block details

Block namePWR_R_51
LibraryPower system single-line symbols (IEC 60617)
GroupProtection relays
StandardIEC 60617
Attributes10 attributes, 2 visible

Attributes

Visible on the drawing: TAG, FUNCTION.

Hidden, they carry the data for schedules: SETTING, TRIPS, CT_INPUT, VT_INPUT, MANUFACTURER, MODEL, REMARKS, DESC.

Export the attributes of every copy in a drawing to Excel with BlockSync, check them and write the corrections back in one run.

How to use it

  1. Download the ZIP and unzip it. It holds one DWG with the block PWR_R_51.
  2. Open the DWG and copy the block into your drawing, or insert it from the DWG with INSERT.
  3. Double-click a copy to fill in the tag and the other attributes.

The symbol is our own drawing after the common form of IEC 60617, not a certified copy. The library page explains how the symbols relate to the standard.

Names in other languages

The same symbol under its name in the other site languages.

English
Relay, time overcurrent (51)
Simplified Chinese
定时限过电流继电器（51）
Traditional Chinese
電驛，延時過電流(51)
Japanese
限時過電流継電器(51)
Korean
계전기, 반한시 과전류(51)
German
Relais, verzögerter Überstrom (51)
French
Relais à maximum de courant temporisé (51)
Italian
Relè di massima corrente a tempo (51)
Spanish
Relé de sobreintensidad temporizado (51)

More symbols in the group “Protection relays”