Permissible values of DC resistance of KRU elements

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Annex 3.1. Permissible values of DC resistance of KRU elements. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Rules for the technical operation of consumer electrical installations (PTE)

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Table 27

Measured element*	Rated contact current, A	Permissible resistance, µOhm
Primary plug-in contacts	400	75
	630	60
	1000	50
	1600	40
	2000 and above	33
Connection of the grounding of the withdrawable element with the housing	-	No more than 0,1 ohm

*Measuring is carried out if the design of the switchgear allows.

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