Collection: OUVR
Overvoltage and Undervoltage Protectors: Essential Devices for Power Stability
Overvoltage and undervoltage protectors are critical components in electrical systems. They protect equipment from power fluctuations that can cause significant damage. These devices help ensure smooth operation and extend the lifespan of electrical products by detecting abnormal voltage levels quickly. Using reliable protective devices reduces downtime and maintenance expenses effectively.
What Are Voltage Protection Devices?
Voltage protection devices, including those that handle overvoltage and undervoltage, are specialized units designed to monitor voltage variations. When voltage moves beyond or falls below a preset limit, these devices act by cutting off or regulating the power supply. They find extensive use in residential, commercial, and industrial areas to maintain power integrity and safety.
Types of Overvoltage and Undervoltage Protectors
Various types of voltage protection devices exist to suit different operational requirements. Common categories include relay-based protectors, solid-state protectors, and digital protection units. Relay-based protectors utilize electromagnetic switches to disconnect power. Solid-state devices work with semiconductor components, while digital units provide improved accuracy and programmable configurations.
Working Principles and Key Features
These protectors continually monitor the voltage delivered to connected equipment. When voltage goes outside the safe range, the device trips a relay or activates a switch to cut off power. Many models include adjustable voltage thresholds, time delays, and status indicators. These features give users enhanced control and clearer insight over the power protection process.
Applications and Benefits of Voltage Protection Devices
Protective devices for voltage irregularities are vital for shielding sensitive electronics, industrial machinery, and household appliances. Their use helps avoid costly repairs due to unexpected voltage surges or drops. They improve system reliability and minimize risks associated with power surges, brownouts, and outages. By preventing damage, these devices boost electrical installation safety.
Installation and Maintenance Tips for Protectors
Correct installation of voltage protectors is essential to maximize their efficiency. These devices should be installed near the equipment they protect, with wiring following the manufacturer's instructions. Routine maintenance, such as connection checks and function testing, ensures uninterrupted operation. It is recommended to engage qualified specialists for installation and troubleshooting.
Technical Specifications to Consider
When choosing protective devices for voltage fluctuations, consider parameters like voltage rating, current limit, response time, and reset mode. The choice depends on the specific demands of the electrical system and the sensitivity of connected devices. Understanding these specs aids in selecting the best protector for any application.
Visual Aids and Documentation
Refer to the image below illustrating typical protectors used in industrial setups.

The following table summarizes common types of voltage protectors, their characteristics, and typical applications:
| Type | Technology | Voltage Range | Typical Application |
|---|---|---|---|
| Relay-Based | Electromechanical | 120-240V AC | Industrial Machines |
| Solid-State | Semiconductor | 110-480V AC | Home Appliances |
| Digital | Microprocessor-Controlled | Adjustable | Commercial Equipment |
Summary on Overvoltage and Undervoltage Protectors
In summary, overvoltage and undervoltage protectors play a crucial role in keeping electrical power systems stable. Their ability to detect and control voltage changes safeguards valuable equipment from damage. Investing in these protectors ensures system safety and reliability. Proper selection and maintenance optimize their advantages, making them indispensable for modern electrical networks.
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DELIXI DZ47vGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47vGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47vGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USD -
DELIXI DZ47vGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47vGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47vGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USD -
DELIXI DZ47SGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $11.07 USDRegular priceUnit price / perSale price From $11.07 USDDELIXI DZ47SGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $11.07 USDRegular priceUnit price / perSale price From $11.07 USDDELIXI DZ47SGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $11.07 USDRegular priceUnit price / perSale price From $11.07 USD -
DELIXI DZ47sGQF(R) Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47sGQF(R) Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USDDELIXI DZ47sGQF(R) Resettable Overvoltage and Undervoltage Protector
Regular price From $7.63 USDRegular priceUnit price / perSale price From $7.63 USD -
DELIXI CDB6iGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USDDELIXI CDB6iGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USDDELIXI CDB6iGQR Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USD -
DELIXI CDB6iGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USDDELIXI CDB6iGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USDDELIXI CDB6iGQF Resettable Overvoltage and Undervoltage Protector
Regular price From $9.55 USDRegular priceUnit price / perSale price From $9.55 USD -
CHINT OUVR-2 Over Voltage And Under Voltage Protective Device With Auto-Reclosing Function
Regular price From $6.99 USDRegular priceUnit price / perSale price From $6.99 USDCHINT OUVR-2 Over Voltage And Under Voltage Protective Device With Auto-Reclosing Function
Regular price From $6.99 USDRegular priceUnit price / perSale price From $6.99 USDCHINT OUVR-2 Over Voltage And Under Voltage Protective Device With Auto-Reclosing Function
Regular price From $6.99 USDRegular priceUnit price / perSale price From $6.99 USD -
Siemens 5TT5 OUPA self-recovery over-voltage and under-voltage protector
Regular price From $48.06 USDRegular priceUnit price / perSale price From $48.06 USDSiemens 5TT5 OUPA self-recovery over-voltage and under-voltage protector
Regular price From $48.06 USDRegular priceUnit price / perSale price From $48.06 USDSiemens 5TT5 OUPA self-recovery over-voltage and under-voltage protector
Regular price From $48.06 USDRegular priceUnit price / perSale price From $48.06 USD -
Schneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.11 USDRegular priceUnit price / perSale price From $43.11 USDSchneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.11 USDRegular priceUnit price / perSale price From $43.11 USDSchneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.11 USDRegular priceUnit price / perSale price From $43.11 USD -
Schneider Electric EA9ZGQ self-recovery over-voltage and under-voltage protector
Regular price From $32.32 USDRegular priceUnit price / perSale price From $32.32 USDSchneider Electric EA9ZGQ self-recovery over-voltage and under-voltage protector
Regular price From $32.32 USDRegular priceUnit price / perSale price From $32.32 USDSchneider Electric EA9ZGQ self-recovery over-voltage and under-voltage protector
Regular price From $32.32 USDRegular priceUnit price / perSale price From $32.32 USD -
Schneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.71 USDRegular priceUnit price / perSale price From $43.71 USDSchneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.71 USDRegular priceUnit price / perSale price From $43.71 USDSchneider Electric A9 iCNV self-recovery over-voltage and under-voltage protector
Regular price From $43.71 USDRegular priceUnit price / perSale price From $43.71 USD -
Chint OUVR-1 self-recovery over-voltage and under-voltage protector
Regular price From $9.05 USDRegular priceUnit price / perSale price From $9.05 USDChint OUVR-1 self-recovery over-voltage and under-voltage protector
Regular price From $9.05 USDRegular priceUnit price / perSale price From $9.05 USDChint OUVR-1 self-recovery over-voltage and under-voltage protector
Regular price From $9.05 USDRegular priceUnit price / perSale price From $9.05 USD