
Voltage Protector
PN2-VAK Voltage Protector
TPKELE PN2-VAK combines a self-resetting over/under voltage protector with a built-in kWh energy meter. A tri-color display shows voltage (red), current (green) and accumulated energy (blue) — ideal for rental-property sub-metering and tenant electricity billing while protecting the circuit from voltage and current faults.
Key Features
- Voltage protection + built-in kWh energy meter
- Tri-color display — voltage / current / kWh
- Over-current setting 1–40A / 1–63A / 1–80A
- Adjustable reset delay 0–999s (default 60s)
- 35mm DIN-rail mounting
Need full datasheet, drawing or certificates for tender?
Typical Applications
Technical Specifications
| Product Type | Self-Resetting Voltage Protector with kWh Energy Meter |
|---|---|
| Model | PN2-VAK |
| Rated Supply Voltage | AC 220V (AC 110V Customizable) |
| Rated Frequency | 40 / 50 / 60 / 70Hz |
| Over-Voltage Setting Range | AC 240–300V |
| Under-Voltage Setting Range | AC 140–230V |
| Over-Current Setting Range | 1–40A / 1–63A / 1–80A (per rated model) |
| Max. Working Current | 40A / 63A / 80A (Optional) |
| Trip Delay (Over-Voltage) | 0.5 Seconds |
| Voltage Accuracy | <1% |
| Display Mode | Tri-color — Voltage (Red) + Current (Green) + kWh (Blue) |
| Current Display Note | Not displayed when current is below 1A |
| kWh Display Note | Cumulative; not displayed below 0.01 kWh |
| Reset Delay Time | 0–999 Seconds (Adjustable, Default 60s) |
| Password Protection | Supported — prevents unauthorized parameter changes |
| Energy-Saving Mode | Switchable |
| Housing Material | Flame-retardant PC (UL94 V-0) |
| Dimensions | 81 × 36 × 66mm |
| Installation | 35mm DIN Rail |
| Ambient Temperature | -25°C to +55°C |
| Permitted Relative Humidity | ≤50% at 40°C (Non-condensing) |
| Mechanical Life | ≥10,000 Cycles |
| Protection Functions | Over-voltage, Under-voltage, Over-current, Delay Protection, kWh Metering |
| Application | Rental Property Sub-metering, Tenant Electricity Billing, Light Commercial Premises |
| Certification | CE, RoHS |
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.







