Industrial Automatic Reclosing Over and Under Voltage Protectors
JUTRION designs and manufactures a comprehensive range of high-performance over and under-voltage protection devices built to safeguard industrial, commercial, and residential electrical systems. Engineered for stability and reliability, our voltage protectors offer real-time monitoring and ultra-fast response times to prevent equipment damage from voltage fluctuations. With advanced automated production lines and strict QC testing, we deliver certified, durable OEM/ODM solutions to global distributors and panel builders.
-Premium Features
Auto-Reset & Maintenance-Free Operation
When a transient over or under-voltage event occurs, the protector swiftly disconnects the circuit. Once the grid voltage returns to a safe range and stabilizes, the device automatically recloses to restore power. This eliminates expensive on-site manual reset costs caused by temporary grid fluctuations, making it ideal for remote projects or unmanned distribution boards.
Microprocessor-Based High-Precision Monitoring
Integrated with a high-performance microcontrol unit (MCU), the device utilizes digital sampling for precise voltage evaluation. It effectively filters out harmonic interference and transient start-up surges, ensuring the protector trips only when the voltage genuinely exceeds safe thresholds. This drastically reduces nuisance tripping and safeguards sensitive downstream electrical assets.
Configurable Thresholds & Customized Delay Time
Users can customize and adjust the over-voltage thresholds, under-voltage thresholds, and the reclosing recovery delay time according to local grid conditions. This exceptional flexibility allows a single product variant to seamlessly adapt to diverse power grid standards worldwide, significantly simplifying global stock management and procurement for international buyers.
Compact DIN-Rail Modular Design & V0 Flame-Retardant Body
Featuring a standard 35mm DIN-rail modular design, the compact structure can be easily integrated into any standard distribution box or low-voltage switchgear. The enclosure is crafted from V0-grade flame-retardant, high-temperature resistant materials, paired with heavy-duty internal alloy contacts, fully complying with IEC international standards for safety and rapid installation.
Compliant with Industry Standards
Smart Grid Ready: Microprocessor-Controlled OVP/UVP Relays Built for Harsh Environments
Heavy-duty automatic reclosing technology with configurable thresholds for precise power management.
JUTRION Self-Resetting Over and Under Voltage Protection Products
Unlock global market potential with JUTRION’s premium OEM/ODM capability. Our automatic reclosing OVP/UVP devices are built on industrial-grade high-spec PCBs with top-tier chipsets, guaranteeing precise voltage sensing and rugged reliability under harsh grid conditions. From custom branding to tailored electrical parameters, our automated manufacturing ensures impeccable quality and scalable supply.
JRGQ-63 Series Digital Adjustable Automatic Reclosing Over & Under Voltage Protection Device
Flagship dual digital display protector. Features real-time voltage/current monitoring and fully adjustable parameters, integrating over-voltage, under-voltage, overcurrent, and auto-reclosing for premium industrial power management.
JQGQ-63 Series Digital Adjustable Automatic Reclosing Over & Under Voltage Protection Device
Compact digital display protector. Combines smart monitoring with adjustable thresholds in a space-saving design, delivering full functionality and high integration—ideal for high-density electrical panel boards.
JUGQ-63 Series Automatic Reclosing Over & Under Voltage Protection Device
Cost-effective self-resetting protector. Features factory-calibrated thresholds for plug-and-play installation. Its streamlined structure ensures extended lifespan and low failure rates, serving as the benchmark for high-volume OEM procurement.
100% Pre-Shipment Inspection for Absolute Power Safety
Your power safety is our top priority. Every single JUTRION device undergoes 100% full-functional and safety testing before leaving our facility, ensuring flawless performance and global compliance. By eliminating defective units at the source, we protect your critical equipment from unpredictable grid fluctuations and significantly reduce your on-site maintenance costs.
JUTRION Voltage Protectors: Frequently Asked Questions
What is an Automatic Reclosing Over and Under Voltage Protector (Self-Resetting OVP/UVP)?
An Automatic Reclosing Over and Under Voltage Protector (commonly referred to as a self-resetting voltage protection relay) is an intelligent electrical safety device installed on DIN rails. It is designed to continuously monitor grid voltage stability. When a voltage spike (over-voltage) or voltage drop (under-voltage) occurs, the device instantly trips to isolate and safeguard downstream electrical appliances. Once the grid voltage returns to a safe level, the protector automatically resets and recloses after a short delay, restoring power without requiring any manual on-site troubleshooting.
How does an automatic reclosing over/under voltage protector work?
The operation of our device runs on a continuous smart loop, controlled by an integrated microprocessor, split into three seamless phases:
- Real-Time Monitoring: Once powered on, the built-in MCU constantly samples the incoming grid voltage with digital precision.
- Instantaneous Tripping: If the grid voltage spikes above (over-voltage) or drops below (under-voltage) the safe threshold, the internal control circuit triggers instantly, opening the heavy-duty alloy contacts within milliseconds to completely isolate and protect downstream electrical equipment.
- Intelligent Auto-Reclosing: While the circuit is open, the protector continues monitoring the grid. Once the supply voltage returns to a normal, safe range and remains stable, the device initiates a built-in countdown (recovery delay time). After the countdown concludes, it automatically recloses the contacts to restore power seamlessly, requiring zero manual reset.
How do JUTRION self-resetting protectors ensure long-term stability under harsh or unstable grid conditions?
Long-term durability is at the core of JUTRION’s manufacturing excellence. Every device is engineered with premium-grade, multi-layer PCBs and heavy-duty internal electronic components utilizing automated SMT (Surface Mount Technology) craftsmanship. This high-spec architecture provides exceptional anti-interference (EMC) performance and superior thermal dissipation to eliminate nuisance harmonic tripping. Combined with a V0-grade high-temperature flame-retardant housing and heavy-duty internal alloy contacts, our automatic reclosing devices offer an extended electrical and mechanical lifespan, ensuring rugged reliability even in severe environments.
Do you test your products before shipping? How do you guarantee quality for international buyers?
Absolute power safety is our uncompromised promise. JUTRION operates advanced precision production lines backed by a strict quality control system. We implement a 100% pre-shipment inspection policy, meaning every single automatic reclosing unit undergoes comprehensive full-functional testing and insulation safety routing before leaving our facility. This rigorous process eliminates manufacturing defects at the source, ensuring flawless performance, extended electrical lifespan, and strict compliance with global B2B procurement standards upon arrival.
Do you support OEM/ODM manufacturing? Can we customize our own branding or tailor specific electrical parameters?
Yes, absolutely. JUTRION is a fully capable manufacturing partner providing scalable OEM/ODM solutions for global electrical brands and distributors. Driven by our massive production capacity across multiple automated lines, we can laser-print your company logo, custom-mold enclosures, and design bespoke retail packaging. Furthermore, our senior electrical engineering team can tailor specific parameters—such as customized over/under-voltage thresholds, specific current limits, or custom reclosing delay intervals—to seamlessly match your target market’s regulatory compliance.