Single-Phase 230V Adjustable Overvoltage Protector

The Single-Phase 230V Adjustable Overvoltage Protector adopts modularized design, which can regulate the over-voltage, under-voltage and over-current of the circuit. The protector is able to quickly cut off the circuit to avoid abnormal voltage or current causing damage to electrical equipment. In addition, when the voltage or current value returns to normal, the circuit will be automatically turned on within the set delay time, for example, it can work normally in the middle of the night when it is unmanned, and it adopts a double digital tube display, which can display the voltage and current values at the same time.

Single-Phase 230V Adjustable Overvoltage Protector is suitable for users or loads with AC voltage 230V, frequency 50Hz, rated working current 100A and below. For example, in the AC power system, generator sets, substations, factories, machine rooms and other places need this product. In AC power system, the voltage and current protector belongs to the equipment protection device to avoid the equipment damage caused by the sudden power failure of the power grid, undervoltage and so on. In machine rooms, factories and other places, Single-Phase 230V Adjustable Overvoltage Protector can protect the equipment from operator misoperation or abnormal power supply to ensure normal operation and safe production.

Key Features and Functional Specifications

Adjustable Protection Parameters:

• Overvoltage Protection: The Single-Phase 230V Adjustable Overvoltage Protector allows users to set upper voltage limits to prevent damage from voltage spikes.
• Undervoltage Protection: Automatically disconnects when voltage drops below the safe threshold, protecting sensitive equipment.
• Overcurrent Protection: Adjustable current settings ensure circuits are protected from overload conditions.
• Action Time / Delay: Customizable delay time helps avoid frequent tripping due to temporary fluctuations.

Safety and Operation

• Automatic Recovery: The Single-Phase 230V Adjustable Overvoltage Protector restores power automatically once voltage returns to normal within the preset delay.
• Digital Display: Dual digital display shows real-time voltage and current values for easy monitoring.
• Fast Response: Quickly cuts off power during abnormal conditions to minimize equipment damage.

Installation and Design

• DIN Rail Mounting: Standard TH35-7.5 rail installation for quick setup in distribution boxes.
• Robust Housing: Flame-retardant material ensures safety and durability in industrial environments.
• Low Power Consumption: Efficient design reduces energy loss during operation.
• The Single-Phase 230V Adjustable Overvoltage Protector is compact and suitable for control panels and electrical cabinets.

Detailed Technical Data

• Rated Voltage: AC 230V, 50Hz
• Rated Current: ≤100A
• Recovery Delay Time: Adjustable (customizable based on application)
• Mechanical Life: Long service life for continuous operation
• Working Temperature: -20℃ to +70℃

Application Scenarios

• The Single-Phase 230V Adjustable Overvoltage Protector is widely used in generators, substations, factories, and server rooms.
• Protects equipment from voltage instability, power failure, and operator errors.
• Ensures stable operation in residential, commercial, and industrial power systems.

Important Notes

• Install in environments below 3000m altitude with pollution level Class 2.
• Ensure proper vertical installation with tilt not exceeding 5°.
• Avoid strong impact during transportation and keep in dry storage conditions.
• Installation and maintenance should be performed by qualified personnel.

Conditions of use:

Ambient temperature: -20℃ ~ +70℃. Altitude: The altitude of the installation site should not exceed 3000 meters. Pollution level: Class 2.

Installation conditions: This Single-Phase 230V Adjustable Overvoltage Protector should be mounted with TH35-7.5 mounting rail, and the inclination of the mounting surface from the vertical should not exceed 5°.

Transportation and storage conditions: Temperature: -20℃~70℃. The product should be lightly loaded and unloaded during transportation, not inverted, and avoid strong collision.

FAQ

What are typical adjustable ranges for 230V systems?

• Overvoltage protection is typically adjustable between 250V – 300V.
• Undervoltage protection is usually set between 140V – 210V.
• Overcurrent settings depend on the model, commonly up to 100A.
• Delay time can be adjusted (e.g., 1–300 seconds) to avoid nuisance tripping.

Does it automatically restore power?

• Yes, the Single-Phase 230V Adjustable Overvoltage Protector supports automatic recovery.
• Once voltage and current return to normal, it reconnects the circuit after a preset delay.
• This feature is useful for unattended environments like server rooms or factories.

What is the difference between this and a Surge Protector?

• Overvoltage protector: disconnects power when voltage exceeds safe limits.
• Surge protector: absorbs or diverts short-term voltage spikes.
• The overvoltage protector provides continuous monitoring and active cutoff, while surge protectors handle transient events.
• They are often used together for complete protection.

What happens if there is an overcurrent?

• The device detects when current exceeds the preset threshold.
• It will quickly disconnect the circuit to prevent overheating or damage.
• After the fault is cleared, the system can automatically restore power if conditions return to normal.