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

Variable Contact Resistance [VCR]

Variable Contact Resistance or Delta Contact Resistance, measured in milli-ohms, is the difference between the lowest and the highest Static Contact Resistance reading out of a prescribed set of test cycles. This is a measure of a reed contact’s contact stability. Four-terminal Sensing and shielded cables should be used for accurate contact resistance measurements.

Delta Contact Resistance
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