3kVA Wall Mount Automatic Voltage Regulator

The AVS 3KVA Wall Mount Automatic Voltage Regulator is built for high-power resistive and inductive loads that are common in kitchens and utility rooms. Its robust toroidal transformer and 7-tap relay network provide stable voltage to appliances that draw high current, such as air conditioners (up to 1.5-2 HP), induction hobs, and large microwave ovens. The unit’s MCU continuously monitors input and adjusts taps to maintain ±8% regulation, even when grid voltage sags to 140V or surges to 260V.

The heavy-duty 20A fuse and circuit breaker protect both the regulator and connected devices. The 180-second delay option is essential for air conditioner compressors, preventing damage from short-cycling.

Core Advantages

1. High Power Handling (1800W)

This capacity covers most single-phase domestic air conditioners (up to 2HP) and heavy kitchen appliances. 3KVA Wall Mount Automatic Voltage Regulator provides a stable platform for peak-load devices without derating.

2. Compressor-Friendly Delay and Surge Support

The built-in delay (selectable 6s or 180s) and the toroidal transformer’s ability to handle inrush currents up to 3× nominal make it perfect for motor-compressor protection.

3. Thermal Monitoring and Overload Cut-off

A thermistor embedded in the transformer coil triggers the “OH” alarm and cuts output at 120°C. Overload protection engages at 120% load, ensuring safety under extreme conditions.

4. Wall-Mount Stability

The heavier build (6.9 kg) comes with reinforced mounting brackets, ensuring secure installation on concrete or wooden walls.

Product Parameter

Key Application Scenarios

1. Window Air Conditioners – Protect 1.5-2HP units from voltage sags.

2. Induction Cooktops – Ensure stable heating without power fluctuations.

3. Microwave Ovens – Prevent erratic operation and component stress.

4. Electric Water Heaters – Maintain consistent temperature control.

Why Choose the AVS-3000P?

The AVS 3KVA Wall Mount Automatic Voltage Regulator is the first model in the series to cross the 1500W threshold, making it the go-to choice for high-power kitchen and cooling appliances. Its robust construction and higher breaker rating set it apart from lower-powered siblings, providing peace of mind for demanding users.

KTAC offer custom input voltage ranges, output sockets, and branding. OEM/ODM services include packaging design and label printing.

FAQ

1. Can I use the AVS-3000P for a central air conditioner?

Only if the central AC is single-phase and draws less than 1800W. For larger systems, please consider our higher models.

2. What is the recommended delay for air conditioners?

Always set to 180 seconds to allow refrigerant pressure to equalise before restarting.

3. Does the regulator generate heat?

Yes, but the toroidal transformer is highly efficient. Ensure at least 10cm clearance for ventilation.

4. Can the AVS-3000P be used for a 2HP air conditioner?

Yes. A 2HP air conditioner typically draws 1500-1800W during normal operation. The AVS-3000P is rated at 1800W continuous with surge handling up to 3 times the rated power, which is sufficient for the startup current of a 2HP compressor. However, please verify the nameplate specifications of your specific air conditioner model to ensure the running power does not exceed 1800W.

5. Why does the AVS 3KVA Wall Mount Automatic Voltage Regulator use terminal block connections instead of standard power sockets?

Terminal block connections are used because high-power appliances such as air conditioners and electric water heaters are typically wired directly to the building's electrical system without using plug-and-socket connections. This configuration ensures a more reliable and secure connection, reduces contact resistance, and is compliant with electrical safety codes for fixed installations in many countries. Professional installation by a licensed electrician is recommended.

6. How much current does the AVS-3000P draw at full load?

At full load (1800W) with a 220V input, the AVS-3000P draws approximately 8.2A. With a 20A circuit breaker, the unit has significant headroom to handle startup surges without tripping. At 110V input, the current draw would be approximately 16.4A, still within the 20A breaker rating.