Grid Stability
Over & Under Voltage Protection Relays
In markets with unstable grids, voltage swings destroy air conditioners, refrigerators and electronics. Walax over & under voltage protectors monitor the line continuously, disconnect on harmful fluctuations, and automatically re-energize when the supply returns to safe limits.
- Factory-direct pricing · OEM/ODM branding · IEC/CE compliance
- Wholesale & project supply to Africa, SE Asia & the Middle East
Product Range
Browse All Voltage Protection Relays
Adjustable over/under-voltage and current protection relays from 40A to 100A, single-phase 110V–420V, with LED display and DIN-rail mounting. Click any product for full specifications and wholesale pricing.
FAQ
Frequently Asked Questions
It continuously monitors supply voltage and disconnects the load when voltage rises above or falls below set thresholds, protecting appliances from brownouts, surges and phase faults.
Yes. Over-voltage and under-voltage limits are adjustable via front-panel buttons or trimmers, with LED display of the live value on display-equipped models.
MOQs are flexible per SKU to support mixed containers. Share your target quantities and models and we will confirm the best configuration.
Yes. Full OEM service includes logo printing on the front cover, custom packaging and barcodes.
Yes – type-test reports and CE documentation accompany every shipment. Country-specific certifications available on request.
Get In Touch
Send Us an Inquiry
Need Over & Under Voltage Protectors Pricing?
Send your quantities and target delivery port – our export desk replies with a wholesale quotation within 4 business hours.
Packaging, Shipping & Ordering Terms
MOQ, lead time, payment terms and packing quantities vary by model. Contact us for MOQ & packing details for the models you need.















