Voltage Protector
Voltage Protector Manufacturer — Over & Under Voltage Protection
TPKELE voltage protectors monitor incoming mains and disconnect downstream loads when voltage moves outside safe limits. Single-phase and three-phase versions on DIN rail protect refrigerators, AC, motors and electronics from over-voltage, under-voltage and phase-loss events — a high-volume product for distributors serving regions with unstable grid quality.
- Automatic disconnect on over-voltage and under-voltage
- Adjustable trip thresholds and reconnection delay
- Single-phase and three-phase DIN-rail models
- Phase-loss / phase-sequence detection (3-phase)
- Auto reset after voltage returns to safe range
- CE & RoHS compliant — high-volume distributor stock item
Typical Applications
Technical Specifications
| Product Type | Self-Resetting Over/Under Voltage Protector |
|---|---|
| Model | PN2-VA2 |
| 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 | 40A / 63A / 80A (Optional) |
| Reset Delay Time | 0–999 Seconds (Adjustable, Default 60s) |
| Display Mode | Dual Digital Display — Voltage (Red) + Current (Green) |
| 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 |
| OEM Customization | Logo customization supported |
| Application | Residential Distribution Boards, Light Commercial Premises, Home Appliance Protection |
| 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.