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Yes, all digital thermostat settings are stored in non-volatile memory.

For a sensor to work with another thermostat, you need to check their compatibility. Such thermostat should support a digital sensor DS18B20, an analog sensor R10 (NTC-thermistor) with a resistance of 10 kOhm at 25 ° C, or a TXA thermocouple. Compatibility should be specified in the technical certificate (or instruction) for the thermostat.

The size depends on the sensor model:

• analog sensor R10 has an oval form of section, width 7.1 mm, height 5.9 mm and length 15.1 mm;
• digital sensor D18 has a circular form of section, a diameter of 8 mm and a length of 23 mm;
• digital sensor D18 (updated design) has an oval form of section, width 8.5 mm, height 7.3 mm and length 20 mm;
• digital sensor D18 in thermal setting has an oval form of section, width 5.3 mm, height 4.1 mm and length 24 mm.

Several factors influence the possibility of thermostat overheating:

• long-term operation of the device at maximum loads;
• poor connection of wires to the thermostat;
• operation of the device at high environment temperature or external heat sources affect the device.

It is possible, but only if the total section of the wire does not exceed 2.5 mm², and the total power of the connected equipment does not exceed the maximum permissible power for which the thermostat is designed. For long-term operation of the thermostat, it should be supplied with a constant load of no more than ⅔ from the maximum.

In On mode, the screen lights constantly. To activate sleep mode, turn off the device by the button.

Yes. In some new models, up to 9 brightness levels are available and even a complete shutdown of the digital display.

All relay settings are stored in non-volatile memory.

Several factors influence the possibility of relay overheating:

• long-term operation of the device at maximum loads;
• poor connection of wires to relay;
• operation of the device at high external temperature or external heat sources act on the device.

Models with "t" letter have thermal protection, as well as some additional functions, unlike models without the letter "t."

The voltage relay and voltage stabilizer are two different devices. It is rational to use stabilizer at constantly increased or constantly reduced voltage, and a voltage relay is used in stable networks to prevent the impact of emergency situations on the equipment.

The current relay controls the amount of electric current consumed by connected equipment, and if the set parameter is exceeded, it will turn off the consumers, and the voltage relay will turn off the load in case of emergency situations in the network when voltage parameters increase or decrease more or less than the set limits.

No. Phase imbalance control is available in relays for three-phase networks.

The circuit breaker is installed before ZUBR relay.

Yes. For stable operation, the circuit breaker power should be ⅔ of relay power.

Yes, it will, but with a current consumption of more than 16 A, the relay can fail.

The main manufacture is located in Kiev, Ukraine.

DS Electronics owns the terneo, ZUBR brands.

Yes, please, contact through the form on the site and leave your contacts or call/email us in the messenger.

We can arrange delivery to almost all countries of the world (in case of transport companies work with the recipient country)

Yes, you can text your question in technical support through one of the messengers by following number +380(68) 666-88-50

The warranty for ZUBR relay is 5 years, for thermostats — 3 years.