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TS HD 639 S1 Electrical auxiliary equipment - Portable residual current devices without integral overcurrent protector - Used in homes and similar places (prcd)

TS HD 639 S1 / A1 Electrical auxiliary equipment - Portable residual current devices without integral surge protector - Used in household and similar places (prcd) 

TS HD 639 S1 / A2 Electrical auxiliary equipment - Portable residual current devices without integral surge protector - Used in household and similar places (prcd)

TS EN 50123-4 Railway applications - Stationary installations - Da switching equipment - part 4: Outdoor disconnectors, disconnectors and earth disconnectors