AVS30 Over & Under Automatic Voltage Switcher Protection for Office & Home equipment

The AVS-30 (Automatic Voltage Switch - 30 Amps) is an automatic voltage protection device, commonly used to protect electrical appliances or equipment from damage due to voltage fluctuations (like over-voltage, under-voltage, or spikes). These devices are especially useful in regions where power supply is unstable.


What is the AVS-30?
The AVS-30 is designed to:
Disconnect power when the voltage is too high or too low.
Automatically reconnect when voltage stabilizes.
Handle up to 30 Amps of current (suitable for medium to large appliances or a small sub-circuit).
Protect against brownouts, surges, and sp

Voltage thresholds: Typically preset around 190V (low) and 260V (high), but this may vary.
Start-up delay (approx. 10 seconds to 5 minutes) – allows voltage to stabilize before reconnecting.
LED indicators to show status (e.g., "WAIT", "SAFE", "OFF").
Compact design for wall-mount or panel installations.


Technical Specifications (Typical)
Specification Value
Voltage 220-240V AC, 50/60 Hz
Max current 30 Amps
In Rush Current 110 Amps
Power (Watts) 7200 W
Under-voltage cutoff 185-190V
Over-voltage cutoff 255-260V
Weight 0.5kg
Dimensions 21 x 13.2 x 5.3cm
Reconnection delay Adjustable (10s to 5 mins)
Load type Resistive/Inductive loads
Mounting Plug-in or hardwired
(These values may vary slightly depending on manufacturer or model version)


Installation Guidelines
NOTE: Installation should be done by a qualified electrician unless it’s a plug-in model.

For Plug-and-Play Models:
Plug the AVS-30 into the wall socket.
Plug the appliance (e.g., refrigerator, freezer, air conditioner) into the AVS-30.
When you switch it on, the unit performs a power check.
If voltage is within the safe range, the "SAFE" light turns on and power is supplied to the appliance.


For Hardwired Models:
Turn off the main circuit breaker.
Mount the AVS-30 on a wall or inside a control box.
Connect:
Line/Live input from mains to the AVS-30 input terminal.
Neutral to the corresponding terminal.
Output live/neutral to the appliance or sub-circuit.
Switch power back on.
Observe LED indicators to confirm operation.


How to Use It – Operation Steps
Initial Power-On:
The AVS-30 will enter a delay mode (LED shows “WAIT”).
This delay helps prevent equipment damage from initial power surges or fluctuations.

Monitoring Mode: Once voltage stabilizes, it will switch to “SAFE” and supply power.

If voltage goes out of safe range:
Power is cut instantly.
LED changes to “OFF” or “WAIT”, depending on model.
When voltage normalizes, the unit waits a few seconds (or minutes), then reconnects.
Manual Reset (if applicable): Some versions allow a manual reset button to override delays in emergencies.
Adjusting Delay (if available): Some models have a knob or DIP switch for selecting delay time before reconnection (e.g., 10s, 30s, 3min, etc.).


Troubleshooting Tips
Issue Cause Solution
AVS not turning on No power Check power supply, plug, fuse
Constant “WAIT” LED Voltage still unstable Wait for stabilization or check mains
Unit keeps cutting off Fluctuating voltage Check with voltmeter, consider stabilizer
Appliance not receiving power Loose wiring or overload Inspect wiring and load rating


Typical Use Cases
Refrigerators & Freezers
Air Conditioners
TV Sets and Home Theaters
Water Pumps
Microwave Ovens
Office equipment (printers, routers)
Whole-room circuits (if within 30A rating)


Safety Tips
Always match the AVS rating with your appliance's amperage and wattage.
Do not use it with devices that require soft-start or variable voltage unless specified.
Ensure grounding and correct polarity during installation.
Avoid moisture or direct sunlight exposure.

Camera Disclaimer:
While we strive to showcase the product as accurately as possible, variations in lighting, display settings, or individual perception may cause slight differences in colour.


Contact Us:
If you have any questions, feel free to reach out to our after-sales team that is available to respond within 24 hours.


Package Content: 1 x AVS30 Over & Under Automatic Voltage Switcher Protection for Water Pumps, Air Conditioners, Freezers