1. Uvod
The MCR SINOTIMER SVP-915A is an advanced adjustable voltage protector designed to safeguard electrical appliances and systems from voltage fluctuations and overcurrent conditions. It features an LCD display for real-time monitoring of voltage, current, and power consumption (KWH). This device integrates over-voltage, pod-voltage, and overload protection functions, automatically disconnecting the power supply when abnormal conditions are detected and reconnecting when safe levels are restored. It is suitable for DIN rail mounting in various electrical distribution systems.
2. Sigurnosne informacije
Please read this manual carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or damage to the device and connected equipment.
- Preporučena profesionalna instalacija: Instalaciju treba izvršiti samo kvalificirani električar ili kompetentna osoba.
- Isključivanje struje: Uvijek se uvjerite da je glavno napajanje isključeno prije instaliranja, ožičenja ili bilo kakvog održavanja uređaja.
- Ispravno ožičenje: Follow the wiring diagram precisely. Incorrect wiring can cause damage or malfunction.
- Radno okruženje: Do not install the device in environments with excessive moisture, dust, corrosive gases, or high temperatures.
- Nosivost: Do not exceed the maximum rated current and voltage uređaja.
- uzemljenje: Osigurajte pravilno uzemljenje električnog sistema.
3. Proizvod je gotovview
The SINOTIMER SVP-915A is a compact and versatile protection device. Its main components and features include:
- LCD ekran: Prikazuje jačinu zvuka u realnom vremenutage (U), current (A), and accumulated power consumption (KWH).
- Kontrolna dugmad: "SET" button for entering settings mode, and "Up" / "Down" arrow buttons for adjusting parameters.
- Ulazno/izlazni terminali: Clearly marked 'IN' (Input) and 'OUT' (Output) terminals for Live (L) and Neutral (N) connections.
- Montaža na DIN šinu: Designed for easy installation on standard 35mm DIN rails.
- Funkcije zaštite:
- Over-voltage zaštita (OVP)
- Under-voltage zaštita (UVP)
- Zaštita od prekomerne struje (OCP)
- Automatic re-connection after fault clearance

Slika 3.1: Prednja strana view of the SINOTIMER SVP-915A, showing the LCD screen and control buttons.

Slika 3.2: Pod uglom view of the device, showing the 'IN' and 'OUT' terminals.
4. Postavljanje i instalacija
Before proceeding with installation, ensure all safety precautions are observed, especially disconnecting the main power supply.
4.1. Montaža na DIN šinu
- Locate an appropriate 35mm DIN rail within your electrical panel.
- Align the device's mounting clip with the DIN rail.
- Press the device firmly onto the rail until it clicks into place. Ensure it is securely fastened.

Slika 4.1: Dno view koji ilustruje mehanizam za montažu na DIN šinu.
4.2. Ožičenje
Refer to the wiring diagram below for correct connection. The device is designed for single-phase systems.

Figure 4.2: Wiring Diagram for SINOTIMER SVP-915A.
- Ulaz (IN): Connect the incoming Live (L) and Neutral (N) wires from your power source (e.g., main breaker or power switch) to the 'IN' terminals of the SVP-915A.
- Izlaz (OUT): Connect the outgoing Live (L) and Neutral (N) wires to your load (e.g., distribution panel or appliances) from the 'OUT' terminals of the SVP-915A.
- Provjerite da su svi spojevi čvrsti i sigurni kako biste spriječili labave kontakte i pregrijavanje.
4.3. Početno uključivanje
After verifying all connections, restore power to the circuit. The device's LCD display should illuminate, showing the current voltage. The device will perform a self-test and then enter normal operating mode.
5. Uputstvo za upotrebu
5.1. Načini prikaza
The LCD continuously displays the current voltage (U). Pressing the "Up" or "Down" buttons briefly will cycle through other display parameters:
- VoltagEU): Trenutna jačina zvuka linijetage u voltima (V).
- Struja (A): Current load in Amperes (A).
- Snaga (W): Real-time power consumption in Watts (W).
- Energy (KWH): Accumulated power consumption in Kilowatt-hours (KWH).
5.2. Adjusting Protection Parameters
To enter the settings mode and adjust protection thresholds:
- Press and hold the "SET" button for approximately 3-5 seconds until the display starts flashing, indicating entry into settings mode.
- Use the "SET" button to cycle through the adjustable parameters:
- Over-voltage protection threshold (UVP): Set the maximum allowable voltage.
- Under-voltage protection threshold (OVP): Set the minimum allowable voltage.
- Over-current protection threshold (OCP): Set the maximum allowable current.
- Reconnection delay time: Time before the device reconnects after a fault.
- While a parameter is flashing, use the "Up" and "Down" arrow buttons to adjust its value.
- After setting all desired parameters, press and hold the "SET" button again for 3-5 seconds, or wait for 10 seconds without any button press, to save the settings and exit the settings mode.
5.3. Resetting KWH
To reset the accumulated KWH reading, enter the settings mode, navigate to the KWH display, and then press and hold both "Up" and "Down" buttons simultaneously until the KWH value resets to zero.
6. Održavanje
The SINOTIMER SVP-915A is designed for minimal maintenance. However, periodic checks can ensure optimal performance and longevity.
- čišćenje: Gently wipe the device with a dry, soft cloth to remove dust. Do not use liquid cleaners or abrasive materials.
- Provjera veze: Periodically inspect wiring connections to ensure they remain tight and free from corrosion. (Ensure power is disconnected before inspection).
- Uslovi okoline: Osigurajte da radno okruženje ostane unutar specificiranih granica (temperatura, vlažnost).
7. Otkrivanje problema
If you encounter issues with your SVP-915A, refer to the following common problems and solutions:
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema prikaza / Uređaj se ne uključuje | Nema ulaznog napajanja; Nepravilno ožičenje; Kvar uređaja. | Check main power supply. Verify input wiring (L and N). If power is present and wiring is correct, the device may be faulty. |
| Uređaj se često isključuje | Over-voltage, pod-voltage, or over-current condition; Protection thresholds set too low/high. | Check actual line voltage and load current. Adjust protection thresholds if necessary (refer to Section 5.2). Reduce load if over-current is detected. |
| Netačna očitanja na ekranu | Wiring error; Device calibration issue. | Verify wiring connections. If readings are consistently inaccurate, the device may require service. |
| Device does not reconnect after fault | Fault condition still present; Reconnection delay too long; Device fault. | Osigurajte stanje greške (previsok/premalonapon)tage, over current) has cleared. Check reconnection delay setting. If the fault has cleared and delay passed, device may be faulty. |
Ako problem i dalje postoji nakon isprobavanja ovih rješenja, obratite se korisničkoj podršci.
8. Specifikacije
Key technical specifications for the MCR SINOTIMER SVP-915A:
- Model: SVP-915A
- Brand: MCR (Manufacturer: SINOTIMER)
- Rated Voltage: 110V / 120V AC
- Nazivna struja: 63A (podesivo)
- Over-voltage Protection Range: Podesivo
- Under-voltage Protection Range: Podesivo
- Over-current Protection Range: Podesivo
- Prikaz: LCD (Volumentage, Current, KWH)
- Montaža: 35 mm DIN šina
- ASIN: B08C7NL296
- Broj dijela: SVP915A-1
8.1. Dimenzije

Slika 8.1: Dimenzije uređaja.
- Visina: Otprilike 85 mm
- širina: Otprilike 36 mm
- dubina: Approximately 65mm (including DIN rail clip)
9. Garancija i podrška
For warranty information and technical support, please refer to the purchase documentation or contact your retailer. Keep your purchase receipt as proof of purchase.
For further assistance, you may also contact the manufacturer, SINOTIMER, through their official channels.





