3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

Name: 3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module
Brand: Elecbee
SKU: EB0046923
Price: 13.99 USD
Availability: InStock
Rating: 139 / 29 (29 reviews)

$13.99

SKU: EB0046923

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3pcs QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch Module

EB0046923

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Description

Specifications:

Voltage: 5V DC (±1.5V)

Power consumption: <1.0W

Output: Passive output (ie dry contact), relay set of normally open + normally closed output. Do not exceed 10A at most.

Time range: (4 files, selected by switch)

First gear: range 0.2 seconds-30 seconds, accuracy: 0.1 seconds

Second gear: range 0.2 seconds - 300 seconds (5 minutes), accuracy: 0.3 seconds

Third gear: range 0.2 seconds-30 minutes, accuracy: 1.8 seconds

Four gears: range 0.2 seconds - 300 minutes (5 hours), accuracy: 18 seconds

Input: Voltage signal, above 1.5V is the effective signal, the current needs at least 0.1mA.

Dimensions: length 70mm * width 25mm * height 20mm

Screw hole: center distance 64.5, aperture 3.0mm

Wiring:

V+ module DC powered positive

GND The DC supply of the module is also the reference GND of the signal voltage.

IN signal voltage input, low level below 1V, high level above 1.5V, uncertain in the middle. Up to 30V

Normally open contact of the NO relay

Constant contact of NC relay

COM relay contact common

Instructions:

Time range setting:

- When the selector switch is placed in the 30 position, it means 0-30 adjustable

- When the selector switch is placed at position 300, it indicates that 0-300 is adjustable.

Adjustment of time value:

- Adjustable resistance rotates counterclockwise to the direction of the number to reduce the time, clockwise to the + direction increases the time

Time unit setting:

- When the selector switch is placed in the Sec position, the unit is: second

- When the selector switch is placed in the Min position, the unit is: minute

Example:

Request a delay of 50 minutes:

1. The range is placed at 300 position

2. The time unit is placed in the Min position.

3. Adjust the adjustable resistance to 50 position, adjust to 300, so adjust to 1/5 is 50.

Note: The potentiometer adjustment can also be quickly adjusted with the multimeter voltage file. For example, the range is 30, and it needs to be adjusted to 12, then the voltage can be adjusted to 2.

t=Ut/5*30=2.0V / 5.0V * 30 =12

Ut is the voltage measured by the multimeter, 30 is the range selected by the selector switch, and can also be selected to 300.

Applications:

Combined with the travel switch and the inductive switch:

1. Timeout automatically closes the door

2. Pipeline product flow monitoring

3. Current flow monitoring such as water flow

4. Other uses

Package Include:

3 x QF-RD21 5V Power-off Delay Disconnect Relay Module Timer Delay Switch

3pcs-QF-RD21-5V-Power-off-Delay-Disconnect-Relay-Module-Timer-Delay-Switch-Module-1631738

Reviews (29)
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Q & A

: Where is the origin of Elecbee products? Are they certificated?

2023-03-03

Answer:

Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.

2023-03-03

: What forms of payment do you accept?

2023-03-03

Answer:

Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.

2023-03-03

: When will you arrange shipment?

2023-03-03

Answer:

After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.

2023-03-03

: How to exchange or return?

2023-03-03

Answer:

1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.

2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;

3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.

2023-03-03