# NE555 Timer Module, Off-Delay, 12V

> Timer module with NE555 chip, off-delay function, 12 VDC supply voltage. The relay switches on immediately and turns off after a time interval adjustable via potentiometer (0-60 s). Relay switching capacity 10A at 250V AC / 30V DC, LED indicator for relay status. Dimensions 28 x 55 mm. Suitable for controlling lighting, fans or pumps.

- Page: https://sigmanortec.ro/en/ne555-timer-module-off-delay-12v
- Price: 13.61 RON
- Availability: In stock; 1-2 zile
- Reference: 88219 · EAN: 5941109033702
- Category: Electronic components > Timer Modules
- Specifications: Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Main IC: NE555; Module function: Temporizator cu întârziere la oprire
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:26 (Europe/Bucharest)

## Description

Compact solution for the automatic stopping of a task after a set time, operates at 12 VDC and uses delay-off timing, the relay engages immediately on power-up and disengages after 0-60 s adjustable from the potentiometer. 10A relay for controlling lighting, fans, or pumps, integrated LED for relay status, compact dimensions for easy installation.
The NE555 timer module is a compact and reliable solution for applications that require automatic shutdown of a load after a preset time interval. The board operates at a 12 VDC supply voltage and includes an integrated potentiometer that allows adjustment of the timing interval between 0 and 60 seconds, directly from the application, without additional components.
The operating mode is delay-off: when the supply voltage is applied, the electromagnetic relay activates immediately, connecting the load to the output. After the time set by the potentiometer expires, the relay automatically deactivates, interrupting power to the load. The cycle can be restarted by disconnecting and reapplying the input voltage.
Among the main features are the electromagnetic relay with switching capacity of up to 10A at 250V AC or 30V DC, the potentiometer for fine timing adjustment, the indicator LED that signals the active state of the relay, the compact dimensions of 28 x 55 mm, and the NE555 circuit as the timing element with good long-term stability.
It is recommended for controlling fans, stair lighting, water pumps, air extraction systems, or any application where automatic shutdown of a load after a defined interval is desired.
Specifications:
Chip: NE555
Supply voltage: 12 VDC
Timing range: 0 – 60 seconds (adjustable via potentiometer)
Operating mode: Delay-off
Maximum relay switching voltage: 250V AC / 30V DC
Maximum relay switching current: 10A
Indicator LED: Yes, for relay status
Dimensions: 28 x 55 mm
Layout:
Pinout:
Pin
Description
VIN
12 VDC supply
GND
Ground / 0V
NO
Relay normally open contact
COM
Relay common contact
NC
Relay normally closed contact
Usage:
Connect the VCC terminal to the 12 VDC power supply and the GND terminal to the circuit ground.
Connect the load (fan, pump, bulb, etc.) between the NO and COM relay terminals.
Adjust the potentiometer to set the desired time interval between 0 and 60 seconds.
Apply the supply voltage. The relay will activate immediately, and the indicator LED will turn on.
After the set interval expires, the relay automatically deactivates, and the load turns off.
To restart the cycle, disconnect the supply voltage and then apply it again.
Adjust the potentiometer whenever you want to change the timing interval.
Dimensions diagram: