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Relays
A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current. The heart of a relay is an electromagnet (a coil of wire that becomes a temporary magnet when electricity flows through it). You can think of a relay as a kind of electric lever: switch it on with a tiny current and it switches on ("leverages") another appliance using a much bigger current. Why is that useful? As the name suggests, many sensors are incredibly sensitive pieces of electronic equipment and produce only small electric currents. But often we need them to drive bigger pieces of apparatus that use bigger currents. Relays bridge the gap, making it possible for small currents to activate larger ones. That means relays can work either as switches (turning things on and off) or as amplifiers (converting small currents into larger ones).
Arduino Relay Coil:12V 15A 115V /10A 250V
..
R30.00
Ex Vat: R26.09
Ex Vat: R26.09
Arduino Relay Coil:5V 15A 115V /10A 250V
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R30.00
Ex Vat: R26.09
Ex Vat: R26.09
N4078 2PDT Coil:12V 0.2W 1A/125VAC 2A/30VDC Relay (RZ12)
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R23.50
Ex Vat: R20.43
Ex Vat: R20.43
N4078 2PDT Coil:5V 0.2W 1A/125VAC 2A/30VDC Relay
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R22.50
Ex Vat: R19.57
Ex Vat: R19.57
 SPDT Coil 12v Switch 250v 10A Relay-100x100.jpg "NT72-2C-S10 Relay 10A 12VDC 1PDT 0.36W LZ12")
NT72-2C-S10 Relay 10A 12VDC 1PDT 0.36W LZ12
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R19.90
Ex Vat: R17.30
Ex Vat: R17.30
Relay DPDT 8A 12V 0.53W 5MM
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R49.90
Ex Vat: R43.39
Ex Vat: R43.39
RZ24 Relay 2PDT 24VDC 1.2A Sealed
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R22.50
Ex Vat: R19.57
Ex Vat: R19.57
RZ5 Relay 2PDT 1.2A 5VDC Sealed
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R26.50
Ex Vat: R23.04
Ex Vat: R23.04
Solid State Relay 5v Coil 240V 6A
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R60.00
Ex Vat: R52.17
Ex Vat: R52.17
Timer Switch Controller Module Delay Adjustable 10S-24H
1. Power-on reset automatically
2. The d..
R70.51
Ex Vat: R61.32
Ex Vat: R61.32
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