2P Auto Reconnect Voltage Protector Type M Triple Display

Procurement teams sourcing switchgear for remote infrastructure require smart protection modules that can automatically recover from temporary power faults to maximize system uptime. Designed and built by Pugao (Mora), the high-performance 2P Auto Reconnect Voltage Protector Type M Triple Display is engineered specifically for these unattended applications. Moving beyond basic manual-reset relays, this device features an intelligent auto-reclosing algorithm that monitors grid conditions after a trip. Once utility voltage stabilizes within safe parameters for a set countdown period, the internal motor-driven mechanism automatically closes the circuit, restoring power to downstream telecom arrays, security networks, or weather monitoring systems.

Triple-Window Array with Fault Counter Integration

Multi-Dimensional Data Synchronous Display: The 2P Auto Reconnect Voltage Protector Type M Triple Display present real-time voltage, real-time current and cumulative fault times respectively, with clear data classification and one-screen full grasp of circuit operating status.

Quantifiable Fault Early Warning: The built-in fault counter can record the number of overvoltage and overcurrent trips in the operation cycle. Maintenance personnel can judge the stability of the on-site grid and the aging state of downstream equipment through fault data, realizing predictive maintenance.

Core Product Advantages

Eliminate Remote O&M Truck Rolls

• Solve Remote Maintenance Pain Points: For cellular base stations, mountain meteorological stations and unattended pump stations, transient grid fluctuations will cause traditional protection relays to trip and shut down, requiring manual on-site reset with high time and labor costs.

• Maximize System Uptime: Realizes full-process automatic fault monitoring, stability judgment and mechanical reclosing recovery. For temporary grid anomalies, 2P Auto Reconnect Voltage Protector Type M Triple Display independently completes power recovery without human intervention, greatly reducing O&M costs and improving equipment continuous operation rate.

Adjustable Reclosing Cycle & Intelligent Safety Lockout

• Prevent Fault Secondary Damage: For permanent short-circuit faults, repeated reclosing will cause thermal damage to lines and equipment. The 2P Auto Reconnect Voltage Protector Type M Triple Display supports custom setting of maximum reclosing attempts.

• Automatic Safety Lockout: When the preset reclosing times are exhausted and the fault still exists, the system will lock the motor drive mechanism, trigger fault alarm, and keep the circuit isolated to avoid dangerous cyclic switching.

Technical Performance Parameters

• Rated Operating Current Options: 40A / 63A Continuous Load Rating

• Auto-Reclosing Time Adjustability: 1 second to 900 seconds Max Range

• Maximum Continuous Reclosing Cycles: 1 to 30 Configurable Attempts Before Lockout

• Voltage Tracking Accuracy / Current Range: ±1% Variance / 0.5A to 63A Dynamic Readout

• Terminal Cross-Section Capacity: Up to 25mm² Solid / 16mm² Stranded with Ferrule (M5 Clamp)

• Chassis Dielectric Strength: 2.5kV Audited Insulation Barrier

• Compliance & Certifications: CE Certified, RoHS Compliant, Conforms to EN 60947-1 Structural Standards

FAQ

Q: If the grid drops to 0V completely, does the motor have enough residual power to protect downstream gear?

A: Yes. Equipped with an industrial high-capacity energy storage capacitor bank, in the event of sudden total grid blackout, the stored electric energy can drive the gear motor mechanism to complete instantaneous trip action, forcing the contacts to open and lock safely, ensuring no load side power leakage before the control power is completely exhausted.

Q: What happens when reaching the maximum reclosing limit under persistent grid faults?

A: When facing permanent circuit faults, after completing the preset reclosing attempts without grid recovery, the 2P Auto Reconnect Voltage Protector Type M Triple Display will automatically lock the motor driving function, disable all automatic reclosing actions, and keep the circuit open. It avoids endless cyclic switching into faulty circuits, protects internal mechanical structures and downstream lines from thermal damage, and requires manual troubleshooting and reset to recover.

Q: How does the controller distinguish transient surges from permanent short circuits?

A: The system integrates voltage sensing and current sampling dual detection mechanism. During reclosing detection, if the grid voltage is stable but an instantaneous large current spike is generated, the MCU will immediately judge it as a permanent short-circuit fault, trigger instant tripping without executing reclosing delay, and protect the internal switching structure from high-current impact damage.