1. Utangulizi
The APIELE YJ48S-S is a versatile 110V AC digital timer relay designed for precise time control in various industrial and home automation applications. This 8-pin delay timer offers an adjustable time range from 0.1 seconds to 99 hours, making it suitable for a wide array of timing requirements. It comes with a base socket for easy DIN rail mounting, providing a reliable solution for automated control systems.
2. Taarifa za Usalama
Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in electrical shock, fire, or serious injury.
- Always disconnect power to the circuit before installing, wiring, or performing any maintenance on the timer relay.
- Installation and wiring should only be performed by qualified personnel familiar with electrical systems and safety procedures.
- Hakikisha kwamba ujazo wa usambazajitage (AC 110V) matches the device's requirements.
- Do not exceed the specified contact capacity of 3A 250V AC resistive load. Overloading can damage the device and create a fire hazard.
- Usiendeshe kifaa kwenye mvua au damp conditions, or in environments with explosive gases or dust.
- Verify all connections are secure and correct before applying power.
3. Bidhaa Imeishaview
The APIELE YJ48S-S timer relay features a clear digital display for time settings and status, along with intuitive adjustment buttons. It is designed for integration into control panels using its 8-pin base socket and DIN rail mounting capability.

Kielelezo cha 3.1: Kuu view of the APIELE YJ48S-S Digital Timer Relay.

Kielelezo 3.2: Kina view of the digital display, adjustment buttons, and time unit selectors (S, M, H) on the timer relay.

Kielelezo cha 3.3: Nyuma view of the timer relay, illustrating the 8-pin connector and the corresponding base socket for secure mounting and electrical connections.
4. Vipimo
| Kipengele | Vipimo |
|---|---|
| Nambari ya Mfano | YJ48S-S |
| Uendeshaji Voltage | AC 110V |
| Uwezo wa Mawasiliano | 3A 250V AC Resistive Load |
| Safu ya Muda Inayoweza Kubadilishwa | 0.1 seconds - 99 hours |
| Idadi ya Vituo | 8 pini |
| Vipimo (L*W*H) | 48 x 48 x 105mm (1.9" x 1.9" x 4.1") |
| Aina ya kiunganishi | Programu-jalizi |
| Aina ya Mawasiliano | Kawaida Fungua |
| Aina ya Kuweka | Mlima wa Reli ya DIN |

Figure 4.1: Physical dimensions of the APIELE YJ48S-S timer relay and its base socket.
5. Kuweka na Kuweka
Proper installation is crucial for the safe and reliable operation of the timer relay.
5.1 Kuweka
- Ensure power is disconnected from the installation area.
- Mount the provided 8-pin base socket onto a standard DIN rail in your control panel.
- Once the base is securely mounted, carefully insert the APIELE YJ48S-S timer relay into the base socket, ensuring all 8 pins align correctly.
Wiring
Refer to the wiring diagram below for correct electrical connections. Incorrect wiring can lead to device malfunction or damage.

Figure 5.1: Detailed wiring diagram for the APIELE YJ48S-S timer relay, showing connections for power input, parallel circuits, and control buttons (Time Reset, Time Pause).
- Ingizo la Nguvu: Connect the AC 110V power supply to the designated terminals on the base socket (typically pins 2 and 7).
- Muunganisho wa Kupakia: Connect your controlled device (load) to the appropriate output terminals (e.g., pins 1 and 8 for parallel connection, or pins 3, 4, 5, 6 depending on the desired contact configuration). The diagram shows a light bulb connected to pins 6 and 7, indicating that when time is up, the device turns on.
- Vifungo vya Kudhibiti: Optional external buttons for 'Time Reset' and 'Time Pause' can be wired to their respective terminals as shown in the diagram.
- Double-check all connections for tightness and correct polarity before restoring power.
6. Maagizo ya Uendeshaji
The APIELE YJ48S-S timer relay operates as an ON/OFF cycle timer, repeating its set sequence indefinitely once powered. It features a digital display for easy time setting.
6.1 Kuwasha
After successful installation and wiring, apply AC 110V power to the timer relay. The digital display will illuminate.
6.2 Setting the Time Delay
- Select Time Unit: Use the 'Switch different unit' button (refer to Figure 3.2) to cycle through available time units: Seconds (S), Minutes (M), or Hours (H).
- Adjust Time Value: Use the '+' and '-' adjustment buttons to set the desired time value for both the ON and OFF cycles. The digital display will show the current setting. The adjustable range is from 0.1 seconds to 99 hours.
- Thibitisha Mpangilio: The timer will automatically save the setting after a few seconds of inactivity.
6.3 Njia ya Uendeshaji
The timer operates in a continuous cycle mode: it will remain ON for the set duration, then OFF for the set duration, and repeat this sequence as long as power is supplied. This is a key characteristic of this specific timer model.

Figure 6.1: Two APIELE YJ48S-S timer relays demonstrating their digital displays and 110V AC operating voltage.
7. Matengenezo
Regular maintenance helps ensure the longevity and reliable performance of your timer relay.
- Kusafisha: The base socket is designed to be removable and washable. Disconnect power, remove the timer relay from its base, and clean the base with a dry, soft cloth. Avoid using abrasive cleaners or solvents.
- Ukaguzi wa Muunganisho: Periodically inspect all wiring connections to ensure they remain tight and free from corrosion. Loose connections can lead to intermittent operation or overheating.
- Masharti ya Mazingira: Hakikisha mazingira ya uendeshaji yanasalia ndani ya viwango maalum vya joto na unyevu ili kuzuia kushindwa mapema.
8. Utatuzi wa shida
If you encounter issues with your APIELE YJ48S-S timer relay, refer to the following common troubleshooting steps:
- Kifaa Kisichowashwa:
- Check the main power supply to ensure AC 110V is present.
- Verify that the power input wires are correctly connected to pins 2 and 7 of the base socket.
- Ensure the timer relay is fully seated in its base socket.
- Incorrect Timing or No Output:
- Confirm that the time settings (ON/OFF durations) are correctly entered and the appropriate time unit (S, M, H) is selected.
- Check the load wiring to ensure the controlled device is properly connected and functioning.
- Verify that the load current does not exceed the 3A 250V AC contact capacity.
- If using external control buttons (Reset/Pause), ensure they are wired correctly and not stuck.
- Timer Stops Unexpectedly:
- Perform a power cycle (turn off and on) to reset the device.
- Ensure stable power supply. Fluctuations can affect operation.
- Tatizo likiendelea, wasiliana na usaidizi kwa wateja kwa usaidizi zaidi.
9. Matukio ya Maombi
The APIELE YJ48S-S timer relay is suitable for a variety of applications requiring precise time-based control:
- Automatic control cabinet equipment
- Street light switch control
- Outdoor illuminated signboard control
- Highway lighting systems
- Industrial automation processes

Kielelezo cha 9.1: Examples of typical application environments for the APIELE YJ48S-S timer relay, including industrial automation and outdoor lighting control.
10. Udhamini na Msaada
10.1 Taarifa ya Udhamini
For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or visit the official APIELE webtovuti. Utoaji wa dhamana kwa kawaida hujumuisha kasoro katika nyenzo na uundaji chini ya matumizi ya kawaida.
10.2 Usaidizi kwa Wateja
If you require technical assistance, have questions about installation, operation, or troubleshooting that are not covered in this manual, please contact APIELE customer support. Contact information can usually be found on the product packaging or the official APIELE webtovuti.





