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Relay technology

The relay was invented more than 160 years ago. During the last 50 years it has undergone considerable change, the most obvious of which is its reduction in size. Using new and advanced contact materials, the switching capacity has either been maintained or increased and the use of new plastic materials has improved the insulation properties.

State-of-the-art technology and precision engineering has led to increased relay sensitivity, i.e. the ratio of input coil power to switching capacity.

Typical applications for relays include laboratory instruments, telecommunication systems, computer interfaces, domestic appliances, air conditioning and heating, automotive electrics, traffic control, lighting control, building control, electric power control, business machines, control of motors and solenoids, tooling machines, production and test equipment.

Title:Relays – General
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Page edited by E.C. (Google).

2 Comments

  1. […] of a single transistor of similar rating with corresponding increase in on-state power loss.During switching, the reverse-biased collector junction may show hot-spot breakdown effects that are specified by […]


  2. baburaman
    Sep 08, 2012

    Could you please update the Relay protection curves types and its specific function and selection for specific application

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