KEMOT SER-500-S Automatic Voltage Stabilizer, 8% Precision, 500 VA, 230V, Relay Type, Single-phase

In a home office or small workshop, voltage fluctuations can cause sensitive electronics to malfunction or even fail. The KEMOT SER-500-S automatic voltage stabilizer maintains a stable 230V output for devices up to 500 VA, protecting computers, routers, and small appliances from over-voltage, under-voltage, and surges. Its relay-type technology with ±8% precision and fast response time ensures your equipment runs smoothly even when the mains supply is unstable.

Key specifications

• Power capacity: 500 VA / 300 W
• Input voltage range: 150–270V AC
• Output voltage: 230V AC ±8%
• Frequency: 50/60 Hz, single-phase
• Stabilization technology: Relay type
• Efficiency: ≥95%, response time <1 second
• Protection: overload, short circuit, over-voltage, under-voltage, over-temperature
• Output socket: 1x Schuko (Type F)
• Input connection: fixed power cable with Schuko plug
• Selectable delay function: 6s or 180s
• LED indicators: power, AVR, delay, fault
• Operating temperature: 0°C to 40°C, humidity 10–90% RH (non-condensing)
• Cooling: natural air

Why choose it

This stabilizer combines reliable relay-based regulation with essential protection features, making it a cost-effective solution for safeguarding your electronics. The selectable delay function prevents harmful inrush currents when power is restored, and the LED indicators provide clear status at a glance. Its compact design and quiet natural cooling make it suitable for continuous operation in residential or office environments.

Ideal use cases

• Protecting desktop computers and peripherals from voltage swings
• Ensuring stable power for routers, modems, and small network equipment
• Powering small home appliances like fans, lamps, or audio systems
• Use in areas with frequent brownouts or over-voltage conditions

Good to know

The KEMOT SER-500-S is designed for indoor use only. Ensure the total connected load does not exceed 300 W to maintain optimal performance. The unit should be placed in a well-ventilated area to allow natural heat dissipation. No batteries are included or required; the stabilizer operates directly from the mains supply.