Description
OMVAP2 Series Voltage Protectors – Advanced Power Protection
The OMVAP2 series voltage protectors provide essential protection against overvoltage, undervoltage, and overcurrent, ensuring stable power supply for motors, control systems, and industrial equipment. Available in OMVAP2-1 (single-phase 220V) and OMVAP2-3 (three-phase 380V), these auto-reset voltage protectors prevent equipment damage by disconnecting power during unsafe voltage conditions.
Features
✔ Adjustable Voltage Limits – Set precise overvoltage and undervoltage thresholds to prevent electrical damage.
✔ Auto-Reset Function – Restores power automatically when voltage stabilizes, minimizing downtime.
✔ Surge Protection – Prevents damage from power spikes, ensuring reliable equipment performance.
✔ Customizable Trip Delay – Adjust trip times (0.1–30s) to optimize power cut-off response.
✔ Fire-Resistant Housing – Constructed from durable PC material for long-term safety.
✔ Easy DIN Rail Mounting – Simplifies installation and allows for flexible adjustments.
Applications
🏠 Residential – Protects appliances and lighting systems from power fluctuations.
🏢 Commercial – Ensures stable voltage for electrical control panels and power grids.
🏭 Industrial – Safeguards heavy machinery and automated equipment from voltage instability.
Quick Installation & Reliable Performance
🔧 Fast DIN Rail Mounting – Reduces installation time and simplifies system upgrades.
✅ High-Precision Voltage Monitoring – Ensures stable power supply in critical applications.
The OMVAP2 series voltage protectors offer advanced surge protection, adjustable trip delays, and auto-reset functionality, making them an ideal choice for residential, commercial, and industrial electrical safety.
Specification
| Model | OMVAP2-1 | OMVAP2-3 | |
| Rated Supply Voltage | AC 220V | AC 380V | |
| Operation Voltage Range | AC 80V~400V(single phase) | AC 80~400V(three phase) | AC140~700V(three phase) |
| Electric Current(> A)setting Range | 1 ~40/63A | 1 ~40A/63A/80A/100A | 1 ~40A/63A/80A/100A |
| Overvoltage(>U)setting Range | 230~300V | 390~500v | |
| Undervoltage(<U)setting Range | 210~140V | 370~260V | |
| Rated Current | 40/63A | 40A/63A/80A/100A | 40A/63A/80A/100A |
| >U and <U Trip Delay | 0.1~30s | ||
| Reset/Start Delay | 1 ~600s | 1 ~500s | |
| Voltage Measurement Accuracy | 2% (Not exceeding 2% of the overall range) | ||
| Rated Insulation Voltage | 400V | 700V | |
| Output Contact | 1NO | 3NO | |
| Protection Degree | IP 20 | ||
| Pollution Degree | 3 | ||
| Altitude | ≤2000m | ||
| Operating Temperature | – 50°C~55°C | ||
| Humidity | ≤50% at 40°C(without condensation) | ||
| Storage Temperature | -30°C~70°C | ||
Dimensions

Why Choose Us for Voltage Protector supplier
Leading Voltage Protector Factory
Since 2005, OOHMAGE has been a leader in low-voltage electrical and DC solar products. As a premier Voltage Protector manufacturer, we have built a robust network encompassing manufacturing, quality inspection, R&D, brand promotion, and international trading. Our 19 years of expertise ensure that our Voltage Protector meet the highest standards, tailored to the needs of B2B clients worldwide.
Comprehensive OEM and ODM Services
At OOHMAGE, we offer full-scale OEM and ODM services, allowing you to customize Voltage Protector to your specific requirements. Our dedicated teams collaborate closely with clients to design and develop products that exceed industry standards. Whether you need standard or bespoke solutions, our capabilities as a Voltage Protector Factory ensure timely delivery and superior quality, helping you stay competitive in the market.
Superior Quality Control and Innovative Solutions
Quality is at the core of OOHMAGE’s operations. As a leading Voltage Protector Factory, we implement strict quality control measures to guarantee the reliability and performance of every Voltage Protector. Our solutions for AC and DC electrical connections and protection are designed to enhance the efficiency, safety, and sustainability of your installations. With over 90% customer satisfaction and comprehensive certifications, we deliver products you can trust.
Global Reach and Exceptional Customer Support
OOHMAGE proudly serves over 120 countries from our state-of-the-art manufacturing base in Yueqing, Zhejiang, China. Our strategic location provides significant advantages in manufacturing, sales management, assembly, and after-sales service. As your trusted Voltage Protector Factory, we offer reliable supply chains and dedicated customer support to ensure a seamless partnership. Choose OOHMAGE for high-quality Voltage Protector and experience unparalleled service and expertise.
FAQ
How does a three-phase voltage protection device benefit machinery and automation systems?
A three-phase voltage protection device ensures balanced voltage supply, preventing motor failures, overheating, and circuit damage in industrial automation systems, HVAC units, and power distribution networks. It is crucial for maintaining energy efficiency and operational safety.
What makes the OMVAP2 series an adjustable voltage protection relay for 220V and 380V systems?
The OMVAP2 series functions as an adjustable voltage protection relay, allowing users to set customized overvoltage and undervoltage limits. It supports single-phase 220V and three-phase 380V systems, making it versatile for residential, commercial, and industrial applications.
What are the benefits of using an industrial voltage protector with auto-reset?
An industrial voltage protector with auto-reset offers automatic restoration of power once voltage levels return to normal. This reduces downtime in factories, minimizes manual intervention, and enhances productivity for heavy-duty electrical equipment.
How does an undervoltage protection device prevent electrical failures?
An undervoltage protection device monitors voltage levels and disconnects power when they drop below the preset limit. This prevents motor stalls, overheating, and performance issues in air conditioners, refrigerators, and industrial machines, ensuring uninterrupted operation.
Why do I need an overvoltage protection device for my electrical system?
An overvoltage protection device is essential for preventing sudden voltage spikes that can damage sensitive equipment. It is widely used in industrial machines, electrical control panels, and home appliances to ensure stable power flow and extend the lifespan of connected devices.
What is a voltage protector, and how does it work?
A voltage protector is a safety device that safeguards electrical systems from overvoltage, undervoltage, and power surges. It automatically disconnects power when voltage levels exceed safe limits and restores it once conditions normalize, preventing damage to motors, appliances, and industrial equipment.
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