
IEC 61811-53 ELECTROMECHANICAL ALL-OR-NOTHING RELAYS - PART 53: BLANK DETAIL SPECIFICATION - ELECTROMECHANICAL ALL-OR-NOTHING TELECOM RELAYS OF ASSESSED QUALITY - TWO CHANGE-OVER CONTACTS, 14 MM X 9 MM BASE
出版:British Standards Institution

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IEC 61811-53 ELECTROMECHANICAL ALL-OR-NOTHING RELAYS - PART 53: BLANK DETAIL SPECIFICATION - ELECTROMECHANICAL ALL-OR-NOTHING TELECOM RELAYS OF ASSESSED QUALITY - TWO CHANGE-OVER CONTACTS, 14 MM X 9 MM BASE
出版:British Standards Institution
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