Blue Jay Technology Co.,Ltd

Blue Jay Technology Co.,Ltd Blue Jay Technology is a power energy meter and protection relay manufacturer in Chongqing, exporting to 50+countries since 2013. All products IEC certified.

Factory area 5,000+ m2, 50+ workers, monthly capacity 500,000 pcs. WhatsApp: +8618084019685 Blue Jay Technology is a leading China Manufacturer of high-performance panel meters, multifunction power meters, energy meters, digital transducers, protection relays, insulation monitoring devices, and industry automatic solutions with over 10 years of customizing and manufacturing experience.

⚡ CVI-2R Capacitive Voltage IndicatorProfessional VDIS Voltage Detecting System for Medium & High Voltage SwitchgearCo...
28/07/2026

⚡ CVI-2R Capacitive Voltage Indicator
Professional VDIS Voltage Detecting System for Medium & High Voltage Switchgear

Core Features:
▫️ Voltage threshold adjustable from 10% to 45% Un
▫️ Integrated self-test function ensures reliable operation
▫️ Designed per IEC 62271-213:2021 standard
▫️ Reliable voltage presence/absence indication for panel safety interlock
▫️ DIN rail mounting, easy integration in new & retrofitted switch cabinets

Essential safety component to prevent hazardous live working accidents.

📩 Send us a message to download datasheet, check technical specs & get bulk quotation! https://bit.ly/4mlSBd1

⚡ Dual Channel Power Monitoring Meter for DC Power SystemsMonitor two independent DC circuits simultaneously with one ...
28/07/2026

⚡ Dual Channel Power Monitoring Meter for DC Power Systems

Monitor two independent DC circuits simultaneously with one compact unit!

✅ Dual-channel independent measurement for DC voltage, current, power & energy
✅ Space-saving design — replace two single-channel DC monitors
✅ Ideal for EV chargers, solar PV systems, battery energy storage & telecom DC power cabinets
✅ DIN rail mounting, easy integration into new panels & retrofit projects
✅ Optional RS485 Modbus communication for SCADA remote monitoring

Cut your component cost and simplify cabinet wiring.
Send us a message to get datasheet, technical parameters & bulk quotation! https://bit.ly/4o6qPRa

New Pre-launch | ELR-4MB Type B Earth Leakage Relay🚨Type A Leakage Protection Is No Longer Enough!Modern inverters, EV c...
17/07/2026

New Pre-launch | ELR-4MB Type B Earth Leakage Relay

🚨Type A Leakage Protection Is No Longer Enough!
Modern inverters, EV chargers, solar systems and variable-frequency loads generate smooth DC & pulsating DC leakage — ordinary earth leakage relays simply can’t detect them, leaving fatal hidden risks in your system.

Meet NEW Pre-launch ELR-4MB Type B Earth Leakage Relay. The full-spectrum leakage protection your modern electrical systems have been waiting for!

✅ Fully IEC 60755 Type B Certified
Strictly compliant with international Type B safety standards, ideal for industrial, renewable energy, commercial and high-precision electrical installations.

✅ Detects ALL leakage current types
Accurately monitors & protects against:
🔹 AC fault current
🔹 Pulsating DC fault current
🔹 Smooth DC fault current

✅ Rich I/O Design for Flexible Integration
Built with 2 DI inputs for Test & Reset + 2 SPDT relay outputs for Alarm & Trip

Perfect for automatic system linkage, remote monitoring, and smart cabinet integration.

Why Type B is a MUST for today’s projects?
More modern equipment = more DC residual current. Only Type B ELR can provide 100% reliable protection and help you pass strict project safety audits.

Do your projects require Type B DC leakage protection?
Contact us via [email protected], we send you full specs & pre-launch price list!

Minor current leakage can cause equipment burnout, electric shock risks, and unexpected system downtime — costing your p...
17/07/2026

Minor current leakage can cause equipment burnout, electric shock risks, and unexpected system downtime — costing your project huge time and money losses.

Stop guessing your circuit safety! Our ELR Series Digital Earth Leakage Relay delivers precise, fast, and reliable earth fault protection for single-phase & three-phase electrical systems, keeping your facilities fully safe 24/7. https://bit.ly/4pm1YLi

🔥 Core Product Highlights
✅ Ultra-Wide Leakage Current Detection
Covers 5mA to 3A leakage current measurement range, perfectly adapts to light daily leakage and severe fault leakage scenarios, suitable for diverse single/three-phase systems.

✅ Dual Relay Safety Design
Equipped with 1 NO trip relay for safety cut-off and 1 NC relay for real-time alarm. Double protection ensures timely fault shutdown and early warning, no missing any hidden dangers.

✅ Wide & Flexible Auxiliary Power Supply
Standard 85-265V AC/DC wide voltage compatibility, optional 48VDC power supply, fits various industrial power environments without extra adapters.

✅ 10ms Ultra-Fast Response
Millisecond-level rapid tripping response, instantly isolates earth faults, effectively prevents equipment damage and electrical safety accidents.

✅ Easy & Standard Installation
Professional DIN rail mounting design, compact structure, quick installation and maintenance, ideal for control cabinet integration and project retrofits.

💡 Why Choose Our Digital ELR?
Compared with traditional mechanical relays, our digital model features higher detection accuracy, stronger stability, wider applicability and zero delayed protection. It is a must-have safety device for industrial equipment, commercial power distribution and electrical engineering projects!

📩 For wholesale price & customized solution:
Phone: +86-023-67628702
Email: [email protected]
Website: https://bit.ly/4pm1YLi

⚡ Tired of unsafe, unreliable voltage indication on your high-voltage switchgear? High voltage safety starts with reliab...
17/07/2026

⚡ Tired of unsafe, unreliable voltage indication on your high-voltage switchgear? High voltage safety starts with reliable voltage detection! Meet our IEC62271 Certified Capacitive Voltage Detecting Systems. The trusted voltage presence & absence monitoring solution built strictly to IEC62271 global high-voltage standards! https://bit.ly/4mlSBd1

✅ Why capacitive voltage detection outperforms traditional indicators?
1. Compliant with full IEC62271 test criteria, fully recognized for power station & industrial HV cabinet use
2. High-precision capacitive sensing: Instantly identify voltage presence OR complete voltage absence with zero misjudgment
3. Strong anti-interference performance: No false signals from stray electromagnetic fields
4. Compact embedded design, easy to integrate into ring main units, switchgears & distribution cabinets
5. Long service life, maintenance-free, stable 24/7 real-time voltage status feedback

👷 For every electrical contractor, substation builder & switchgear manufacturer:
Safety compliance is non-negotiable.
This capacitive voltage detecting system eliminates blind risks during equipment inspection, maintenance & power cut operations — protect your team while meeting international safety certification requirements in one go.

DM us directly for custom dimensions, bulk orders & technical datasheets 📩 [email protected]

Multi-Channel Arc Flash Relay for Data Center Battery SystemsData center battery racks & UPS DC systems are the backbone...
17/07/2026

Multi-Channel Arc Flash Relay for Data Center Battery Systems

Data center battery racks & UPS DC systems are the backbone of uninterrupted power supply — but hidden arc flash hazards always threaten your critical infrastructure, personnel safety, and business uptime

A single arc fault in battery systems can trigger equipment burnout, system downtime, and costly maintenance losses. Standard single-channel protection fails to cover multi-rack distributed battery layouts, leaving blind spots in your safety barrier.

Our Multi-Channel Arc Flash Relay is tailor-built for data center battery & UPS DC power systems, delivering all-round, ultra-fast arc flash protection for your mission-critical facilities!

✅ Why Multi-Channel Design Stands Out for Data Centers
Unlike ordinary single-function relays, our multi-channel solution supports simultaneous monitoring of multiple battery racks and DC distribution cabinets in one compact device. It perfectly matches the multi-group, parallel-connected layout of modern data center battery systems, eliminating monitoring dead zones thoroughly.

⚡ Ultra-Fast Fault Response, Zero Delayed Losses
Featuring high-sensitivity optical sensing + current dual-judgment algorithm, the relay achieves millisecond-level arc flash detection & tripping. It instantly cuts off faulty circuits once arc flash occurs, drastically reducing arc incident energy, avoiding battery pack damage, equipment burnout and fire risks, and maximizing data center operational safety.

- Easy deployment: Supports new project installation and old system retrofitting, compatible with all mainstream data center UPS battery systems

- Cost-effective design: multiple channels for large-scale data center cluster deployment, meeting multi-scenario protection needs

💎 Core Value for Data Center Operators
Data centers run on uptime & safety. Our multi-channel arc flash relay builds a solid safety line for battery DC systems, helping you cut downtime losses, reduce equipment maintenance costs, comply with international electrical safety standards, and protect on-site staff and core IT assets comprehensively.

Upgrade your data center battery system protection from single-point defense to full-coverage multi-channel safety monitoring today!

DM us for product parameters, customized solutions and wholesale pricing 📩 [email protected]

We’re thrilled to announce that Chongqing Blue Jay Technology Co.,Ltd will attend Middle East Energy Exhibition 2026!📅 D...
03/07/2026

We’re thrilled to announce that Chongqing Blue Jay Technology Co.,Ltd will attend Middle East Energy Exhibition 2026!

📅 Date: Sep 1 – Sep 3, 2026
📍 Booth No.: Z3.H18

As a professional manufacturer of electrical automation instruments & power protection devices, we will bring our full product series:
Digital panel meters, earth leakage relays, cabinet dehumidifiers, transformer temperature controllers, fault annunciators, voltage indicators & more high-precision power monitoring equipment.
Visit our booth to discuss customized power distribution solutions for switchgear, substation, new energy & industrial projects.
Our technical & sales team are ready to offer one-stop support for your electrical projects!

See you at Z3.H18!
Our Website: https://bit.ly/4p1CiDv

Unexpected Ground Faults = Expensive Downtime.Struggling with Long Lead Times or High Costs for the Bender RC48C? Our EL...
26/06/2026

Unexpected Ground Faults = Expensive Downtime.
Struggling with Long Lead Times or High Costs for the Bender RC48C? Our ELR-6MS earth leakage relay is the ultimate drop-in alternative for the Bender RC48C series, offering precision leakage tracking for advanced electrical safety.

Key Technical Highlights:
Precise Leakage Tracking: Continuous monitoring of residual currents with adjustable thresholds—just like the RC48C. https://bit.ly/44uxYmP

Seamless Retrofitting: Compact design that fits perfectly into your existing DIN-rail layout or panel cutouts.

In-Stock & Ready to Ship: Say goodbye to endless supply chain delays. We keep your projects moving on schedule.

Robust Signal Output: Reliable relay outputs for immediate PLC/SCADA integration and alarm triggering.

Slash Budget, Not Quality: Get industrial-grade residual current monitoring and early ground fault detection at a fraction of the cost.

Global Compliance: Built to meet strict international electrical safety standards.

Keep your production lines safe, efficient, and unbothered by component shortages.

Click https://bit.ly/3StvmTG to view the cross-reference guide and request a sample for testing!

Stop Guessing Your Ground Faults—Monitor TWO Systems Simultaneously!Managing multiple isolated power systems (IT systems...
26/06/2026

Stop Guessing Your Ground Faults—Monitor TWO Systems Simultaneously!

Managing multiple isolated power systems (IT systems) usually means double the equipment, double the space, and double the installation costs. Not anymore.

Introducing our latest Dual-Channel Insulation Monitoring Device (IMD). One compact unit, twice the capability.

Why Electrical Engineers are Switching:
Cut Costs & Space by 50%: Monitor two independent IT networks (e.g., dual EV charging loops or main + auxiliary energy storage) with just ONE device.

Real-Time Online Tracking: Continuous insulation resistance monitoring without shutting down your system.

Pinpoint Accuracy: Instantly identify exactly which channel has the leakage fault, eliminating endless troubleshooting hours.

Universal Application: Engineered for Solar PV, Energy Storage Systems (ESS), EV Charging Stations, and Marine applications.

Don't wait for an insulation failure to cause costly downtime or safety hazards.

Click https://bit.ly/4gEFjaK to download the datasheet and upgrade your system protection today!

08/06/2026

MV HV swtichgear voltage Presence detection with Capacitive voltage indicator

Address

1802, Building 2, No. 88, Jianxin East Road, Chongqing City
Chongqing Shi
400020

Opening Hours

Monday 09:00 - 17:00
Tuesday 09:00 - 17:00
Wednesday 09:00 - 17:00
Thursday 09:00 - 17:00
Friday 09:00 - 17:00

Telephone

+86-023-67628702

Website

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