Over/Under Voltage Protector 63A 100V-420V DIN Rail
Walax 63A over/under voltage protector with dual LED display, covering a wide 100V to 420V sensing range. The most flexible model, suited to both 110V and 220V single-phase markets with adjustable thresholds.
- Factory-direct pricing · OEM/ODM branding · IEC/CE compliance
- Wholesale & project supply to Africa, SE Asia & the Middle East
100–420V Range
One model covers both 110V and 220V markets with a single SKU.
Dual LED Display
Shows live voltage and set thresholds simultaneously for easy configuration.
63A Capacity
Whole-circuit protection for single-phase supplies.
Technical Specifications
Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.




| Standard | IEC 60947-5-1 · CE |
| Rated current (In) | 63A |
| Rated voltage | AC 100V – 420V (50/60Hz) |
| Over-voltage threshold | Adjustable |
| Under-voltage threshold | Adjustable |
| Display | Dual LED |
| Re-connect delay | Adjustable |
| Mounting | 35mm DIN rail |
| Ambient temperature | -5°C to +40°C |
Where These Relays Install
Single-phase distribution on 110V or 220V supplies where wide voltage swings occur. The dual display and wide range make it the most versatile model in the range.
Frequently Asked Questions
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Need Over/Under Voltage Protector 63A 100V-420V Dual Display Pricing?
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