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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Form D

A Form D or Make Before Break type of reed contact is a change-over type of contact having three leads. On actuation, the common lead makes contact with the NO lead before breaking contact with the NC lead. This is possible only with a small quantity of Mercury in the capsule. These are no longer manufactured as such devices are not RoHS compliant.

Synonyms
Make Before Break
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