
Voltage Protector
CZVA3 Digital Voltage Protector Socket
TPKELE CZVA3 is a plug-in self-resetting over/under voltage and over-current protector socket (EU Schuko) with a dual digital display showing voltage (red) and current (green). Rated 16A / 3680W with password protection, energy-saving mode and adjustable reset delay, it suits shared accommodation, rental properties, small business and high-power appliances.
Key Features
- Plug-in self-resetting protector socket (EU Schuko)
- Dual display — voltage (red) + current (green)
- 16A / 3680W high-power rating
- Over/under voltage + over-current protection
- Password protection and adjustable reset delay
Need full datasheet, drawing or certificates for tender?
Typical Applications
Technical Specifications
| Product Type | Plug-in Self-Resetting Over/Under Voltage & Over-Current Protector Socket |
|---|---|
| Plug/Socket Standard | EU Schuko |
| Rated Supply Voltage | AC 220V (AC 110V Customizable) |
| Rated Frequency | 40 / 50 / 60 / 70Hz |
| Over-Voltage Setting Range | AC 130–300V |
| Under-Voltage Setting Range | AC 80–210V |
| Over-Voltage Trip Delay | 0.5 Seconds |
| Voltage Accuracy | <1% |
| Max Working Current | 16A |
| Max Rated Power | 3680W |
| Display Mode | Dual Digital Display — Voltage (Red) + Current (Green) |
| Password Protection | Yes — supports password locking to prevent unauthorized parameter changes |
| Energy-Saving Mode | Yes — switchable to reduce self-consumption |
| Reset Delay Time | 0–999 Seconds (Adjustable, Default: 60s) |
| Protection Functions | Over-Voltage, Under-Voltage, Over-Current, Delay Protection |
| Housing Material | Flame-Retardant PC (UL94 V-0) |
| Mechanical Life | ≥10,000 Cycles |
| Permitted Relative Humidity | ≤50% at 40°C (Non-Condensing) |
| Ambient Temperature | -25℃ to +55℃ |
| Application | Shared Accommodation, Rental Properties, Small Business, High-Power Appliances, Workshop Equipment |
| Customizable LOGO | Yes |
Certifications & Standards
Verified to international standards for global tenders
OEM / ODM Available
Private label this Voltage Protector for your brand
Logo, color housing, packaging and certificate documentation tailored to distributor and brand-owner programs.
- Custom logo printing on housing and packaging
- Color housing variants for product line differentiation
- Private-label catalogs and datasheet customization
- Project-spec drawings, single-line diagrams and labels
- Container-load supply with export documentation
- Sample preparation within 5–10 working days
Frequently Asked Questions
When should I install a voltage protector?
Voltage protectors are recommended where mains supply is unstable or where sensitive appliances such as refrigerators, air conditioners and electronics need protection from voltage fluctuations and phase-loss events.
Does the voltage protector reset automatically?
Yes — after the mains voltage returns to a safe range, the protector reconnects the load automatically after a configurable delay (typically 5–600s).
Do you have three-phase models with phase-loss protection?
Yes, our three-phase voltage protectors detect over/under voltage on each phase, plus phase loss and phase sequence errors.







