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11.51$
4.31$
Quantity:
1
Availability:
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Dual digital display overvoltage and undervoltage self recovery protector
1-63A AC220V
◆ Overvoltage protection adjustable range: 240-300V
◆ Undervoltage Protecttion adjustable range: 140-210V
◆ Fault delay self-recovery function
◆ Power consumption: <2W
◆ Self-recovery features (If the circuit fault, when the fault is resolved):
Note: action time can be ajustabled by your self.
DHOV3 Self-Resetting Over-Voltage, Under-Voltage and Current Protector
The DHOV3 self-resetting protector is an electrical safety device that provides dual protection against voltage and current anomalies. It is compatible with both 110V and 220V voltage specifications, catering to the electrical safety needs of households, shops and small industrial equipment, thus building a comprehensive safety barrier for electrical appliances.
Three Core Protection Functions to Eliminate Electrical Hazards
Over-voltage Protection: When the grid voltage surges beyond the safe threshold, the protector will cut off the circuit in ≤ 1 second, preventing equipment damage risks such as breakdown of electronic components and burnout of motors caused by high voltage.
Under-voltage Protection: It automatically cuts off the power supply when the voltage is too low, avoiding faults like overheating and locked-rotor of electrical appliances due to overload operation under low voltage, and extending the service life of equipment.
Current Protection: It monitors the circuit load current in real time, avoiding safety hazards such as line overheating and short circuit caused by overload, and maintaining the stability of the power consumption environment.
Self-Reset Design + Dual-Voltage Compatibility for Easier Use
Self-reset Function: After the voltage and current return to normal levels, it will automatically close and restore power supply after a safe delay without manual reset, ensuring the normal operation of equipment even in unattended scenarios.
Dual-voltage Compatibility: It can be directly connected to 110V or 220V power supply lines without additional debugging, adapting to the power specifications of different regions and meeting the needs of various application scenarios.
Clear Status Indication: The working status is intuitively displayed via a two-color indicator light — the green light indicates normal power supply while the red light indicates protection mode, making the power consumption status clear at a glance.
Wide Range of Application Scenarios for All-round Safety
Adopting a modular design, it is easy to install, and can be embedded in distribution cabinets or fixed for direct use. Its wiring capacity is compatible with various specifications of insulated wires. It is suitable for all kinds of electrical appliances such as air conditioners, refrigerators, compressors, small motors and office equipment. Whether in residential buildings, shops or small factories, it can effectively resist safety risks caused by voltage fluctuations and current overload, serving as an essential safety companion for electrical equipment.
1-63A AC110V
Current adjustable range: 1-63A AC110V
◆ Overvoltage protection adjustable range: 120-160V
◆ Undervoltage Protecttion adjustable range: 170-100V
◆ Fault delay self-recovery function
◆ Power consumption: <2W
◆ Self-recovery features (If the circuit fault, when the fault is resolved):
Note: action time can be ajustabled by your self.











Customer Reviews
47 ratings
fast delivery (6)
solid build quality (5)
excellent voltage protection (3)
well-packaged (2)
easy to install (1)
practical design (1)
Customer photos (13)
4***r
August 30, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
It arrived quickly and in good condition. I hope it will be useful and fulfill its purpose.
Translated by AliExpress ·
Buyer from United States
June 29, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
Fast shipping. Good quality. Thumbs-up. Recommended
a***r
June 23, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
Very good quality, I would buy again because and very happy with this product
Buyer from United States
June 19, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
Buyer from United States
June 2, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
excellent and practical
Translated by AliExpress ·
Buyer from United States
May 31, 2026
Variant: Rated Current:1-63A Poles Number:AC110V-220V
Very good product, it fulfills its function.
Translated by AliExpress ·
DIN Rail Adjustable Over Under Voltage Current Protective Device AC220V/110V 1-63A Delayed Self Recovery Voltage Protector
11.51$
4.31$
Quantity:
1
Availability:
Rated Current
Poles Number







