2P Digital Voltage Protector Type C with Triple Display

Industrial switchgear buyers look for multi-functional monitoring devices that save rail space and reduce field wiring complexity. Precision-built by PUGAO (Mora), the high-efficiency 2P Digital Voltage Protector Type C with Triple Display meets this search intent with an all-in-one 36mm-wide modular package. Differing from older dual-window designs, this unit features a built-in internal current sensor and a high-resolution leakage tracking circuit. The onboard microprocessor processes these inputs simultaneously, providing independent adjustment ranges for overvoltage,  overcurrent, and residual current faults to ensure complete protection for sensitive automated machinery.

What Can a Triple-Window Interface Do for Your Maintenance Efficiency?

Modern automation sub-panels require detailed electrical data to simplify diagnostics and prevent downtime. The 2P Digital Voltage Protector Type C with Triple Display uses three independent, stacked digital display windows that show line voltage (V), active circuit current (A), and real-time residual current/power metrics simultaneously. This real-time data display eliminates the need to manually cycle through menus using faceplate buttons, allowing maintenance teams to instantly spot unbalanced loads, harmonic currents, or failing insulation before a critical fault causes an unscheduled system shutdown.

Technical Performance Parameters

• Operating Voltage Range: 140V to 300V AC (50/60 Hz)

• Current Monitoring Capacity (Iₘₐₓ): 1A to 63A Adjustable (Step: 0.1A)

• Leakage Sensitivity Spectrum: 10mA to 99mA Range or Configurable Bypass

• Data Refresh Speed / Precision: ≤ 0.5s Sampling Cycle / Class 1.0 Metrology

• Terminal Wiring Capacity: Accepts up to 25mm² Solid / 16mm² Flexible Stranded Cable

• Compliance & Certifications: CE Certified, RoHS Compliant, Manufactured to IEC 60947-2 Appendix B Standards

Microsecond Ground Leakage Tracking

Millimeter-Level Leakage Precision Monitoring: Equipped with professional residual current monitoring core, it supports real-time tracking of milliampere-level ground fault current, accurately capturing tiny leakage signals caused by wire aging, moisture infiltration and insulation damage.

Dual Fire & Electric Shock Prevention: It builds a secondary safety protection barrier for the circuit on the basis of short-circuit protection, effectively preventing electrical fires and electric shock accidents caused by insulation failure, and is suitable for old wiring facilities and high-safety-level industrial scenarios.

Built-In Low-Loss Current Sensor & Overcurrent Protection

Integrated Sensing Space-Saving Design: Built-in low-resistance high-precision current transformer, supports 0–63A full-range high-precision current monitoring. The 2P Digital Voltage Protector Type C with Triple Display eliminates the need for external CT sensors and auxiliary wiring, greatly optimizing the internal layout of the distribution box and reducing engineering costs.

Intelligent Inrush Current Identification: Users can customize overcurrent trip threshold and delay time. The system can automatically identify and avoid instantaneous inrush current during motor startup, will not generate nuisance trips, and can quickly cut off the power supply for true sustained overload faults to protect circuit equipment.

Long-Term Stable Connection

• Gas-Tight Wiring Design: Nickel-plated copper clamps and M5 steel composite screws support a maximum wiring torque of 2.5 Nm, with strong clamping force.

• Anti-Aging & Anti-Loose: Deep anti-slip serrations on the inner wall of the terminal bite tightly into the copper wire core, effectively solving loose contact faults caused by copper creep and long-term thermal cycling, and maintaining low-resistance stable operation.

FAQ

Q: Why does the current display show 0.0A when low-power equipment is running normally?

A: The built-in current transformer of this model is calibrated for industrial high-power load monitoring, with a minimum detection threshold of 0.5A. The running current of low-power equipment such as small lights and standby electronics is lower than the detection limit, so the display shows 0.0A. This 2P Digital Voltage Protector Type C with Triple Display is positioned for industrial high-load protection, not for micro-current measurement of low-power equipment.

Q: Can the leakage protection function be turned off for old facilities with high baseline leakage?

A: Yes. The residual current threshold can be adjusted freely within 10–99mA or manually turned off through the programming menu to avoid nuisance trips caused by inherent baseline leakage of old lines. It is recommended to be operated by a qualified electrician after confirming the safety of on-site wiring to ensure compliance with on-site grounding safety specifications.

Q: Will the customized voltage and current parameters be lost after power failure?

A: No loss. All user-set protection thresholds and operating parameters are solidified in the onboard EEPROM non-volatile chip, no battery backup is required. The parameters are permanently stored and can be automatically loaded to resume protection work after grid power recovery.