Products > Electromechanical > Relays
Relays
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays.
Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
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LC1D25M7C
Manufacturer: SCHNEIDER
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Schneider Electric,Square D, TeSys D Series, non-reversing contactor, type LC1D, 3P, 3NO, 3PH, 25A AC-3, 40A AC-1 , 690V, complete with 220V 50/60Hz AC coil, 1NO/1NC auxiliary contacts, screw terminals, AC magnetic contactor
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 1533
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HFD4-12
Manufacturer: HONGFA
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Signal Relay 12VDC 2A DPDT(10x7.5x5.65)mm SMD
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 1452
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AgCdO 5V SPDT (1 Form C) 5 Plugin,15.2x19mm Power Relays ROHS
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 1755
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G3NB-240B-1
Manufacturer: OMRON
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DC5-24 Solid state relay (SSR), input 5-24VDC, output load 40A at 24-220VAC
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 1457
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General Purpose Relays SPDT 12VDC Hi-Cap. Sealed ClassF
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 5000
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ZKB432/503-80-120S-E2
Manufacturer: VAC
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Relays
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1 + 10 + 25 + 50 + >=100 -
Minimum : 1 In-stock : 10