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Our 63A Three-Phase Voltage Protector is a high-precision power monitoring and protection device purpose-built for three-phase electrical systems in industrial and commercial environments. This advanced six-display three-phase power protector delivers real-time, per-phase monitoring of voltage, current, and system status via a high-resolution color LCD screen, with fully customizable protection against overvoltage, undervoltage, overcurrent, three-phase voltage unbalance, and phase sequence anomalies. With tactile raised buttons for easy parameter adjustment, industrial-grade anti-tamper technology, and a rugged housing built for harsh operating conditions, this DIN rail-mounted industrial network voltage protector is an essential component for safeguarding high-value three-phase equipment and ensuring stable power distribution across enterprise facilities.
Unlike single-phase or basic three-phase protectors, this unit features a six-display color LCD interface that delivers independent, real-time visibility into voltage, current, and operational status for each of the three phases, plus system-level metrics. This granular monitoring enables facility technicians to quickly identify and resolve phase-specific power anomalies before they cause equipment failure.
This 63A overvoltage undervoltage protector offers 15 fully adjustable parameters, with wide setting ranges for overvoltage, undervoltage, overcurrent, three-phase unbalance, and delay times. All thresholds can be fine-tuned to match the specific requirements of industrial equipment, commercial systems, and local electrical standards, delivering tailored protection for diverse enterprise use cases.
Engineered for demanding operating environments, the device features a rugged, impact-resistant housing, anti-tamper technology to prevent unauthorized parameter changes, and compliance with international electrical safety standards. Its high-precision measurement circuitry delivers ≤2% voltage measurement accuracy across the full operating range, ensuring consistent, reliable protection for high-value enterprise assets.
The compact DIN rail mounting design enables fast, tool-free installation into standard power distribution cabinets, while the tactile raised buttons support easy parameter configuration even when technicians are wearing work gloves. The device also includes built-in voltage and current calibration functions, simplifying long-term maintenance and ensuring ongoing measurement accuracy for industrial network deployments.
Rated voltage | AC380V |
Rated current | 63A/100A |
Operating voltage range | AC120V-300v |
Frequency | 40/50/60/70Hz |
Lag | Overvoltage and asymmetry:5V |
Asymmetric delay | 10s |
Voltage measurement | ≤2%(On the whole spectrum) |
Rated insulation voltage | 450V |
Output contact | 3NO |
This three-phase voltage protector is ideal for automated manufacturing facilities, CNC machining centers, and assembly lines, where it safeguards three-phase motors, servo systems, and control equipment from voltage anomalies that can cause unplanned downtime and costly repairs. It is widely deployed in office towers, shopping malls, and residential complexes to protect elevator systems, large HVAC units, and pumping equipment, ensuring safe, continuous operation and extending the service life of high-value building infrastructure. For solar inverter systems, wind power installations, and commercial power distribution networks, the device monitors and protects three-phase power distribution equipment, preventing damage from grid voltage fluctuations and unbalanced loads. It also delivers reliable protection for three-phase power systems in telecom base stations and edge data centers, safeguarding power supply equipment and cooling systems from electrical anomalies to maintain continuous network operation.
Before installation, fully de-energize the three-phase power circuit and confirm the device’s rated current and voltage match the system specifications. Verify that all wiring tools and personal protective equipment meet local electrical safety standards.
Securely mount the 63A three-phase voltage protector onto a standard DIN rail in the distribution enclosure.
Connect the neutral (N) line and three-phase input lines (L1, L2, L3) to the corresponding IN terminals as marked on the device housing.
Wire the neutral (N) line and three-phase output lines (L1, L2, L3) to the corresponding OUT terminals, then connect the load circuits to the output side.
Inspect all connections to ensure tight, secure fit and correct phase alignment, with no crossed wires or loose terminals.
Restore power to the three-phase circuit, confirm the six-display interface shows accurate per-phase voltage and current readings, and configure protection thresholds via the raised buttons to match the connected equipment’s requirements. Perform a functional test by simulating a voltage anomaly to verify the protection action operates as expected.
This device offers comprehensive protection including overvoltage, undervoltage, overcurrent, three-phase voltage unbalance, and phase sequence loss protection, with fully adjustable thresholds for each function to suit diverse industrial and commercial applications.
Yes, all core protection parameters have wide, customizable setting ranges. Overvoltage protection can be adjusted from 230V-300V, undervoltage protection from 120V-210V, and overcurrent protection from 1A-63A, with adjustable delay times for all protection actions.
Yes, this industrial network three-phase voltage protector features a rugged, impact-resistant housing, wide operating temperature tolerance, and anti-tamper technology, making it suitable for deployment in harsh industrial, manufacturing, and outdoor utility environments.
