Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Dynamic Contact Resistance [DCR]

Dynamic Contact Resistance or Incremental Resistance, measured in milli-ohms, is the average of a set contact resistances measurements of closed contacts, when the contact is in continuous operation under load. During this time, there is no actual opening of the contact, but only a change in contact resistance. Four-terminal Sensing and shielded cables should be used for accurate contact resistance measurements. DCR could be a measure of the long term durability of a reed contact.

Synonyms
Incremental Resistance
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