Single-Phase 63A Circuit Breaker with Over Voltage Protection Copper Current Voltage Regulator Stabilizers 220V Output AC Type

Quick Detail:

1. voltage protection relay,over and under voltage protector

2. Detect the voltage level in the circuit and automatically take protective measures when abnormal voltage occurs

Description:

The Intelligent Auto-Reclosing Voltage Protector: Autonomous Recovery for Uninterrupted Power Security

In the complex and demanding electrical environments that power our industries, businesses, and homes, voltage instability remains a persistent and costly threat. Traditional over/under voltage protectors serve as critical safety switches, disconnecting power during hazardous voltage excursions. However, they present a significant operational drawback: once tripped, they often require a manual reset. This necessitates physical intervention, leading to extended downtime, missed production cycles, and potentially hazardous situations if the fault occurs in an unattended facility or during off-hours. The Intelligent Auto-Reclosing Voltage Protector is engineered to solve this exact challenge. It is a sophisticated, self-recovering guardian that not only detects and isolates dangerous voltage conditions with precision but also autonomously restores power once supply normalizes. This transformative capability ensures operational continuity, reduces maintenance burdens, and provides truly resilient, hands-off protection for critical circuits and sensitive equipment.

The Core Innovation: Autonomous Self-Recovery After a Fault

The defining feature of this device is its advanced auto-reclosing, or self-resetting, logic. Unlike basic protectors that latch in an "off" state, this unit continuously monitors the supply voltage even after a trip event. It incorporates a user-configurable Reset/Start Delay timer, adjustable from 1 to 600 seconds. After a voltage fault clears and remains stable within the safe range for this pre-set duration, the protector automatically re-energizes the circuit. This intelligent delay is crucial; it prevents rapid, damaging cycling of equipment during unstable grid conditions and allows connected systems (like compressors or motors) to settle before restarting. This automation transforms the device from a simple circuit interrupter into an intelligent system manager, ensuring the fastest possible recovery without human intervention.

Precision-Programmable Protection for Tailored Safety

The protector offers granular control over its response parameters, allowing it to be fine-tuned for specific equipment tolerances and local grid characteristics.

• Adjustable Voltage Thresholds: Users can precisely set the Overvoltage trip point between 230V and 300V and the Undervoltage trip point between 140V and 210V. This flexibility is essential for protecting diverse loads—from sensitive electronics requiring a tight 200V-240V window to motors that can tolerate a broader range.
• Optimized Response Timing: The device features a fixed Trip Delay of 0.5 seconds for both over and under voltage conditions. This brief but critical delay immunizes the protector against transient, harmless voltage spikes or sags (like those caused by nearby motor starts), ensuring it responds only to sustained, dangerous anomalies that could cause equipment damage.

Robust Performance Engineered for Demanding Applications

Built to the highest standards of reliability, the protector is specified for professional, continuous-duty use.

• Wide Operational Range & High Capacity: With an astonishing operating voltage range of AC 80V to 350V, it can function in severely depressed rural grids and withstand significant overvoltage events. It is rated for a Rated Current of 40A or 63A (as per label), making it suitable for protecting main branch circuits or substantial individual loads.
• High Accuracy & Durability: Its voltage monitoring circuit boasts an accuracy within 2%, guaranteeing that protection decisions are based on highly reliable measurements. Constructed for longevity, it offers an impressive electrical life of 100,000 operations and a mechanical life of 1,000,000 operations, ensuring years of dependable service.

Unwavering Reliability in Harsh Environmental Conditions

True resilience is proven under extreme stress. This protector is built to perform in some of the most challenging installation environments.

• Exceptional Temperature Endurance: It operates flawlessly across a temperature range of -50°C to +55°C, guaranteeing performance in freezing outdoor enclosures, unheated warehouses, or sun-exposed industrial panels. Its storage rating extends from -30°C to +70°C.
• Rigorous Safety and Environmental Ratings: With a Rated Insulation Voltage of 400V and suitability for installations up to 2000 meters in altitude, it meets stringent international safety standards. The enclosure provides IP20 protection against finger contact, and its design conforms to Pollution Degree 3, indicating robustness in industrial atmospheres with conductive dust or humidity. It maintains reliability at up to 50% relative humidity at 40°C (non-condensing).

Critical Applications Enabled by Auto-Reclosing Technology

The self-resetting capability makes this protector indispensable for unattended or critical continuity applications:

• Remote & Unattended Sites: Perfect for telecommunications cabinets, irrigation control systems, off-grid renewable energy installations, and roadside signage, where manual reset after a grid fluctuation is impractical or costly.
• Industrial Process Continuity: Protects assembly lines, refrigeration units, and environmental control systems. An automatic restart after a brief grid fault minimizes production losses and spoilage without waiting for a technician.
• Commercial & Residential Essential Circuits: Ideal for sump pumps, security systems, lighting control, and home servers. The auto-reclose function ensures these essential systems reactivate autonomously, maintaining safety and convenience.
• Areas with Unstable Grid Infrastructure: In regions prone to frequent but short-lived voltage swings, this device prevents endless manual resets, providing seamless protection and recovery.

Conclusion: The Autonomous Sentinel for Modern Electrical Systems

The Intelligent Auto-Reclosing Voltage Protector represents a significant evolution in power quality management. It moves beyond mere protection into the realm of autonomous system resilience. By combining precise, programmable voltage monitoring with intelligent auto-recovery logic, it eliminates a major pain point associated with traditional protectors: the dependency on manual reset. This translates directly into reduced operational costs, maximized equipment uptime, and enhanced peace of mind. For facility managers, it means fewer service calls and uninterrupted operations. For system integrators, it offers a superior, value-added component that increases overall system intelligence. In a world where electrical reliability is paramount, this device stands as a vigilant, self-sufficient sentinel—constantly guarding your assets and automatically restoring normalcy, ensuring that your operations are not just protected, but also perpetually ready to perform.

Competitive Advantage:

Advantages of Wenzhou DAQUAN Electric Co., Ltd

1. Innovation Leadership

With 258 patents and 27 years of industry experience, we lead in R&D of industrial control devices like relays and timers, ensuring cutting-edge product performance.

2. Global Certifications

Our products hold CE, ROHS, IEC, TUV certifications plus ISO9001, meeting strict international standards for seamless global market access.

3. Scale Supply Stability

Backed by a 7,800㎡ factory, 499-strong team, and 70M RMB annual output, we guarantee efficient production and timely delivery for bulk orders.