Voltage Protection

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.

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.

Specifications

Technical Specifications

Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.

StandardIEC 60947-5-1 · CE
Rated current (In)63A
Rated voltageAC 100V – 420V (50/60Hz)
Over-voltage thresholdAdjustable
Under-voltage thresholdAdjustable
DisplayDual LED
Re-connect delayAdjustable
Mounting35mm DIN rail
Ambient temperature-5°C to +40°C
Applications

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.

FAQ

Frequently Asked Questions

Yes – the 100–420V sensing range covers both 110V and 220V single-phase systems.
It displays the live voltage and the set thresholds, simplifying configuration.
Yes – over and under thresholds and re-connect delay are adjustable.
Standard 35mm DIN rail.
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