Iec: 255 - 19- 1983; Electrical Relays; Part.19 ; Sectional Spacification: Electromechanical All-Or-

International Electrotechnical Commission

Iec: 255 - 19- 1983; Electrical Relays; Part.19 ; Sectional Spacification: Electromechanical All-Or- - IEC 1983

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