Delay switching for connected equipment with this NE555 Timer Relay Shield. It operates from a DC 5V or 12V power supply and lets you set the relay delay from 0 to 10 seconds. The adjustable potentiometer increases the delay time, while increasing capacitor C1 can extend it further.
When powered, the relay initially keeps normally open and common disconnected, while normally closed and common remain connected. After the selected delay, the relay changes state and stays there while power remains connected. Input power and relay pull-in indicator lights show the module’s operating status.
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Control capacity: Controls AC 220V/10A equipment, with a stated large-equipment control rating of 2000W.
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Protection: Includes relay freewheeling protection.
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Timing formula: T = 1.1RC; for example, 100μF and 100K gives approximately 11 seconds.
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Applications: Delays vehicle onboard equipment startup and helps start multiple devices in sequence.
Specifications
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Main chip: NE555
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Working voltage: DC 5V/12V
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Adjustable delay: 0–10 seconds
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Module size: 6.8cm × 2.1cm
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Indicators: Input power and relay pull-in
Packaging
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One package: 0.02kg / 0.05lb; 14cm × 7cm × 4cm
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Quantity per carton: 500 pieces
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Carton: 12.00kg / 26.46lb; 30cm × 50cm × 40cm
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Container loading: 20GP: 444 cartons × 500 pieces = 222,000 pieces; 40HQ: 1,031 cartons × 500 pieces = 515,500 pieces
This relay module is designed for adjustable delay control and sequenced startup of connected equipment.
| Package Weight |
| One Package Weight |
0.02kgs / 0.05lb |
| One Package Size |
14cm * 7cm * 4cm / 5.51inch * 2.76inch * 1.57inch |
| Carton Weight |
12.00kgs / 26.46lb |
| Carton Size |
30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch |
| Loading Container |
20GP: 444 cartons * 500 pcs = 222000 pcs
40HQ: 1031 cartons * 500 pcs = 515500 pcs
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