Intelligent Open Electric Protector Overvoltage Over Current for Electrical Equipment

Quick Detail:

Description:

The Industrial-Grade Auto-Reclosing Voltage Protection Relay: Engineered for Maximum Uptime in Demanding Environments

In the critical power distribution networks of industrial facilities, commercial complexes, and infrastructure projects, the assurance of a stable voltage supply is non-negotiable. Voltage sags and swells are not merely inconveniences; they are primary agents of equipment degradation, unscheduled downtime, and significant financial loss. While standard protection devices halt power during such anomalies, they create a secondary crisis: the need for manual resetting, which prolongs operational paralysis. The Industrial-Grade Auto-Reclosing Voltage Protection Relay is engineered to eliminate this vulnerability. This advanced device represents a paradigm shift from passive protection to active system resilience. It functions as an intelligent, self-correcting guardian for single-phase circuits, meticulously monitoring supply quality and autonomously restoring power once safe conditions are verified. Designed for high-current applications and extreme environments, it delivers unwavering protection and unparalleled continuity for mission-critical 40A and 63A circuits.

The Intelligence of Autonomous Recovery: A Strategic Advantage

The defining feature of this relay is its sophisticated auto-reclosing capability, which transforms it from a simple switch into an autonomous system manager. Upon detecting a sustained overvoltage or undervoltage condition, it executes a disconnect after a precise Trip Delay of 0.5 seconds, providing immunity against harmless transients. Crucially, it then enters a monitoring state. The device features a fully programmable Reset Startup Delay, adjustable from 1 to 600 seconds. Only after the mains voltage remains stably within the user-defined safe window for this entire duration does the relay automatically re-close its contacts. This intelligent logic prevents damaging inrush cycles during unstable grid conditions and ensures a graceful, hands-free return to service. This capability is indispensable for unattended facilities, remote installations, and any process where minutes of downtime equate to substantial revenue loss or operational risk.

Precision-Programmable Protection for Tailored Security

This relay offers engineers granular control, allowing it to be perfectly calibrated for specific equipment sensitivities and local grid profiles.

· Wide-Range Voltage Thresholds: Users can precisely define the safe operating envelope with an Overvoltage setting range of 230-300V and an Undervoltage setting range of 210-140V. This flexibility accommodates everything from sensitive electronic loads requiring tight regulation to more tolerant motor loads.

· High-Capacity Current Matching: With a Rated Current of 40A or 63A (as per label) and a corresponding Current setting range of 1-40/63A, the relay can be finely tuned to the exact capacity of the protected circuit, providing an additional layer of configurable protection aligned with the circuit breaker or load specifications.

· Exceptional Operational Breadth: Engineered for global deployment and poor grid areas, it boasts an exceptionally wide Working Voltage Range of AC 80~400V. This ensures continuous monitoring and readiness even in severely depressed or unstable grid conditions where other devices may fail to operate.

Robust, Industrial-Strength Construction for Maximum Reliability

Built to endure the harshest conditions, this protector is synonymous with durability in continuous-duty applications.

· High-Fidelity Monitoring & Durable Switching: The relay's decisions are based on reliable data, thanks to its Voltage Measurement Accuracy of 3%. Its 1NO (Normally Open) output contact is engineered for high-performance switching, backed by both a mechanical and electrical life of 100,000 operations, ensuring long-term reliability even in applications with frequent grid events.

· Extreme Environmental Endurance: It guarantees stable performance across a vast Operating Temperature range of -50°C to +55°C, functioning flawlessly in freezing outdoor substations or overheated industrial panels. Its design complies with Pollution Degree 3, indicating robust protection against conductive dust, humidity, and other industrial contaminants.

· Comprehensive Safety Certification: With a high Rated Insulation Voltage of 400V, an enclosure rated IP20 against finger contact, and suitability for installations up to 2000 meters in altitude, the device meets stringent international standards for safety and performance in fixed electrical installations.

Strategic Applications for Critical Circuit Continuity

The combination of high-current capacity, auto-reclosing intelligence, and rugged design makes this relay essential for a wide spectrum of demanding applications:

· Industrial Process Lines: Protecting automated machinery, CNC centers, industrial ovens, and robotic cells. Automatic recovery after a brief voltage dip minimizes production losses and prevents spoilage of in-process materials.

· Commercial & Institutional Infrastructure: Safeguarding critical loads such as data center PDUs, commercial kitchen ventilation systems, large HVAC fan coils, and medical facility equipment. Uptime is directly linked to safety, comfort, and business continuity.

· Water and Agricultural Management: Ensuring the continuous operation of high-capacity single-phase pumps for irrigation, drainage, and water supply systems. Auto-reclosing is vital for maintaining these essential services without delay.

· Renewable Energy Integration: Protecting the AC output of large string inverters in solar installations or serving as a grid-interconnection protector for backup power systems, ensuring compliance and safe automatic re-synchronization.

Conclusion: The Foundational Investment in Operational Resilience and Asset Protection

The Industrial-Grade Auto-Reclosing Voltage Protection Relay is more than a protective component; it is a strategic investment in operational excellence and asset longevity. By seamlessly integrating precise, programmable voltage and current protection with intelligent, autonomous recovery logic, it directly addresses the core challenge of balancing equipment safety with maximum operational availability. This results in a dramatic reduction in unplanned downtime, lower maintenance costs, and extended lifespan for valuable electrical assets. For facility managers and plant engineers, it delivers predictable performance and peace of mind. For system designers, it offers a robust, configurable solution that enhances overall system intelligence and reliability. In an industrial landscape where resilience is a key competitive advantage, this device stands as an indispensable, self-reliant sentinel—ensuring that your critical operations are not only shielded from electrical harm but are also perpetually poised to resume productive work, thereby securing both capital investment and operational throughput.

Specifications:

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.