ZUBR manufactures professional voltage monitoring relays, overvoltage protection devices, and electrical heating solutions to safeguard home and industrial equipment.
ZUBR is a prominent brand specializing in electrical safety and control devices, manufactured by DS Electronics. Renowned for its professional-grade voltage monitoring relays, ZUBR provides essential protection for household appliances and industrial equipment against voltage surges, open-phase faults, and critical mains deviations.
The brand’s portfolio extends to multifunction relays measuring current and power, as well as energy-efficient underfloor heating mats. Designed with safety and longevity in mind, ZUBR devices feature durable components, precise digital controls, and extended warranty periods, making them a trusted choice for electrical stability in residential and commercial sectors.
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Standard ZUBR voltage relays typically carry a 60-month (5-year) warranty from the date of sale. ZUBR heating mats often come with a 25-year warranty, provided installation conditions are met.
The 'oht' code indicates that the internal overheat protection has triggered because the temperature inside the housing exceeded 80°C. The device will typically resume operation once the temperature drops below 60°C.
For many ZUBR models, you can reset to factory settings by holding specific buttons (often '+' and '-' or three buttons simultaneously) for about 12-30 seconds until 'dEF' appears on the screen. Refer to your specific model's manual for the exact combination.
Press the 'i' button to enter the log. The screen will display the total number of recorded events. Use '+' and '-' to navigate through recent faults stored in the non-volatile memory.