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Help CenterSingle Phase Over Voltage Under Voltage Protective Device With 2-Year Warranty
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As a professional manufacturer with over a decade of experience in electrical protection, Jinhua Dika Electrical Equipment Co., Ltd. is proud to introduce our reliable Single Phase Over Voltage and Under Voltage Protective Device. Designed to safeguard your valuable equipment from harmful voltage fluctuations, this device is engineered with precision and backed by a robust 2-year warranty, reflecting our confidence in its durability and performance. Serving a global clientele across North America, Europe, Asia, and beyond, we understand the critical need for stable power supply in diverse applications. Our commitment to quality management, evidenced by our adherence to stringent standards, ensures that every unit delivers consistent protection, giving you peace of mind and reducing costly downtime.
This protective device acts as a vigilant guardian for your electrical systems. It continuously monitors the incoming single-phase AC supply voltage. When the voltage deviates beyond the preset safe thresholds—either too high (over-voltage) or too low (under-voltage)—the device promptly disconnects the load from the power source using its internal relay. This automatic cut-off prevents damage to sensitive appliances, motors, compressors, and other connected equipment. Once the line voltage returns to the normal operating range for a predetermined time, the device automatically restores the power connection, ensuring seamless operation without manual intervention.
Key Features and Technical Advantages:
- Dual Protection: Comprehensive safeguarding against both over-voltage and under-voltage conditions in a single, compact unit.
- Adjustable Settings: User-configurable voltage trip points and delay times allow for customization based on specific application requirements and local grid conditions.
- Fast and Accurate Response: Utilizes advanced microprocessor control for precise voltage measurement and rapid relay switching, minimizing the exposure of connected equipment to abnormal voltages.
- Clear Visual Indication: Equipped with LED indicators for power status, fault condition (over/under voltage), and relay state, enabling easy monitoring and troubleshooting.
- Robust Construction: Housed in a flame-retardant plastic or metal enclosure (model dependent) designed for DIN rail mounting, ensuring easy installation in standard electrical panels and longevity in various environments.
- Wide Compatibility: Suitable for protecting a vast array of single-phase equipment, including air conditioners, refrigerators, pumps, industrial machinery, and home appliances.
Technical Specifications Table:
| Parameter | Specification |
| Rated Supply Voltage | 110VAC / 220VAC / 240VAC (Customizable) |
| Phase | Single Phase |
| Protection Functions | Over-Voltage, Under-Voltage |
| Output Contact | 1 Changeover (SPDT) Relay |
| Contact Rating | Available upon request (e.g., 10A @ 250VAC) |
| Setting Ranges | Adjustable for voltage and time delay |
| Mounting | Standard 35mm DIN Rail |
| Operating Temperature | -10°C to +55°C |
| Warranty Period | 24 Months |
Benefits for Your Business:
- Equipment Longevity: Significantly extends the lifespan of motors, compressors, and electronic controls by preventing stress from voltage irregularities.
- Reduced Maintenance Costs: Proactively avoids expensive repairs and replacements caused by voltage-related failures.
- Enhanced Safety: Mitigates fire risks associated with over-voltage conditions and prevents equipment malfunction during brownouts.
- Operational Reliability: Ensures critical processes and appliances operate only within safe voltage parameters, improving overall system uptime.
- Easy Integration: The DIN rail design allows for quick and straightforward installation into new or existing control panels by electricians.
Trust in a partner dedicated to electrical safety and reliability. Jinhua Dika Electrical Equipment Co., Ltd. supports its products with a solid 2-year warranty, demonstrating our commitment to quality. Our products are shipped globally from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics to your location. With an annual export value reflecting our market reach and a team of experienced professionals, we are equipped to meet your voltage protection needs. This device is not just a component; it's an investment in protecting your assets. Contact us today to discuss how this Single Phase Voltage Protective Device can be integrated into your projects or to request detailed specifications for your specific application.
Frequently Asked Questions (FAQ)
-
Q: What is the main purpose of this device?
A: Its primary function is to automatically disconnect electrical equipment from the power supply when the voltage is too high or too low, thereby preventing potential damage. -
Q: Can I adjust the voltage levels at which it trips?
A: Yes. The device typically features adjustable potentiometers or digital settings to define the precise over-voltage and under-voltage trip points according to your needs. -
Q: Is the reset process manual or automatic?
A: It supports automatic reset. After a fault is cleared and the voltage normalizes for a set delay period, it will automatically reconnect the power. Some models may also offer a manual reset option. -
Q: What types of equipment is it suitable for?
A> It is ideal for protecting single-phase equipment such as air conditioners, refrigeration units, water pumps, machine tools, and various household and commercial appliances. -
Q: How is it installed?
A: Installation is simple. It is designed for mounting on a standard 35mm DIN rail inside an electrical distribution board or control panel. Wiring involves connecting the power supply, load, and optionally the settings. -
Q: What does the 2-year warranty cover?
A: The warranty covers defects in materials and workmanship under normal use. Specific terms and conditions can be provided upon request. -
Q: Do you offer different models for different voltage standards (e.g., 110V vs 220V)?
A: Yes. We can provide units calibrated for common voltage standards like 110VAC, 220VAC, or 240VAC. Please specify your requirement when inquiring. -
Q: Can this device be used in three-phase systems?
A: This specific model is for single-phase protection. For three-phase systems, we recommend using a dedicated three-phase voltage protection relay.
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