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Pushbutton Control For Single-Phase Appliances

Pushbutton Control For Single-Phase Appliances

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D2

D1

D3

D4

S1

PUSH

TO-OFF

SWITCH

C1

1000μ

25V

R1

1K

D5

1N4007

LED1

RL1

RL1 = 12V, 2C/O RELAY

LOAD

D1-D4 = 1N4007

X1

230V

AC

50HZ

N

P

X1 = 230V AC PRIMARY TO 9V AC

300mA SECONDARY TRANSFORMER

N/O1

S2

PUSH

TO-ON

SWITCH

N/C1

N/O2

N/C2

Pushbutton Control For Single-Phase Appliances

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publish time: 2020-09-22
Kiraaaa

With this circuit, you can use two separate buttons to close and open the single-phase device switch. This arrangement is very common for industrial motors (mostly three-phase), and isolation between power and control circuits is required. This circuit can also protect expensive equipment from frequent power outages, because in the event of a power failure, the equipment will shut down and remain off until it is turned on again.

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