Introduce
Self resetting overvoltage and undervoltage protector is an intelligent electrical protection device widely used in single-phase and three-phase power supply systems. It can automatically monitor the voltage status of the power grid and provide reliable protection under abnormal conditions.
K48-2058 Overvoltage And Undervoltage Protector
The K48-2058 is a versatile DIN-rail energy meter. It monitors voltage, current, power, and energy consumption with 1% accuracy, featuring an LED display and a reset button for easy energy data management.
Key Features
- Overvoltage protection: When the voltage exceeds the set range (such as single-phase 230-300V, three-phase 390-500V), the circuit will be automatically cut off.The default overvoltage protection value is 280V (single-phase)/overvoltage protection action time is adjustable from 0.1-30s.
- Undervoltage protection: When the voltage is below the set threshold (such as single-phase 210-140V, three-phase 370-260V), the protection mechanism is activated, and the default undervoltage protection value is 160V (single-phase).
- Overcurrent protection: Supports adjustable protection values of 0.5-63A, with continuous overcurrent protection times set (1-20 times/OFF).
- Self recovery function: After the fault is eliminated, the power supply will be automatically restored with a delay time of 1-600S, which can be set.
- Multiple Display: Real time display of parameters such as voltage, current, and battery level, with some models supporting power factor measurement.
Applications
- Residential power distribution system protection
- Industrial equipment power protection
- Power monitoring in commercial premises
- Protection of important load equipment
This series of products adopts modular design, with fast response speed (protection action time as short as 0.1S), high measurement accuracy (voltage error ≤ 2%), flexible settings, etc., which can effectively prevent equipment damage caused by abnormal grid voltage and ensure electrical safety. All models have power-off memory function, and the set parameters can still be maintained after power-off.
Technical Parameter
Dimensions
FAQ
1. Is the K48-2058 suitable for single-phase or three-phase power systems?
The K48-2058 product series is described for both single-phase and three-phase power systems. Please specify your system voltage, phase configuration, and required wiring arrangement when making an inquiry so we can confirm the suitable version.
2. Can the overvoltage, undervoltage, and overcurrent protection settings be adjusted?
Yes. The product page lists adjustable voltage protection thresholds and an overcurrent setting range of 0.5–63 A. The available ranges depend on the selected configuration. Please share your nominal voltage, load current, and required trip thresholds so we can confirm the settings for your application.
3. Will the K48-2058 automatically restore power after a voltage fault?
The K48-2058 series has a self-recovery function. After the voltage returns to the permitted range, it can restore power following a configurable delay. The product page lists a recovery delay setting of 1–600 seconds.
4. What information is needed to confirm installation in our distribution panel?
Please provide your panel’s supply voltage, phase configuration, load current, available mounting space, and wiring requirements. The K48-2058 is presented as a DIN-rail device; request the dimensional drawing and wiring diagram for the exact version before finalizing your panel design.
5. Are certificates, test reports, and OEM options available for the K48-2058?
Please tell us your destination market, required certification or test standard, expected order quantity, and any branding or packaging requirements. We will confirm which documents and OEM options are available for the specific K48-2058 version you need.
