JPS59112451U - Contact failure display circuit for electrical switching contacts - Google Patents

Contact failure display circuit for electrical switching contacts

Info

Publication number
JPS59112451U
JPS59112451U JP478783U JP478783U JPS59112451U JP S59112451 U JPS59112451 U JP S59112451U JP 478783 U JP478783 U JP 478783U JP 478783 U JP478783 U JP 478783U JP S59112451 U JPS59112451 U JP S59112451U
Authority
JP
Japan
Prior art keywords
display circuit
electrical switching
contact failure
switching contacts
failure display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP478783U
Other languages
Japanese (ja)
Inventor
金田　久好
常雄 佐藤
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP478783U priority Critical patent/JPS59112451U/en
Publication of JPS59112451U publication Critical patent/JPS59112451U/en
Pending legal-status Critical Current

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Landscapes

  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の回路図である。 １・・・継電器のコイル、２・・・継電器の接点ａ□、
ａ２．３・・・制限抵抗、４・・・発光ダイオード、５
・・・保護用ダイオード。The figure is a circuit diagram of the present invention. 1... Relay coil, 2... Relay contact a□,
a2.3...Limiting resistor, 4...Light emitting diode, 5
...protection diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電気開閉接点付きの継電器を使用して電気回路を構成し
ている装置において、前記継電器の接点と、発光ダイオ
ードを直列に接続した接点を並列に接続したことを特徴
とする電気開閉接点の接触″　゛　　不良表示回路。A device in which an electric circuit is constructed using a relay with an electric switching contact, characterized in that a contact of the relay and a contact having a light emitting diode connected in series are connected in parallel.゛ Defective display circuit.
JP478783U 1983-01-19 1983-01-19 Contact failure display circuit for electrical switching contacts Pending JPS59112451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP478783U JPS59112451U (en) 1983-01-19 1983-01-19 Contact failure display circuit for electrical switching contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP478783U JPS59112451U (en) 1983-01-19 1983-01-19 Contact failure display circuit for electrical switching contacts

Publications (1)

Publication Number Publication Date
JPS59112451U true JPS59112451U (en) 1984-07-30

Family

ID=30136387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP478783U Pending JPS59112451U (en) 1983-01-19 1983-01-19 Contact failure display circuit for electrical switching contacts

Country Status (1)

Country Link
JP (1) JPS59112451U (en)

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