YFQ1 Dual Power Automatic Switching Device
According to the voltage state of the working power supply and the working mode set bythe user, the dual power switch decides whether to switch from one power supply toanother power supply.

Specification Parameter
Model number | 100/225 | 400 | 630/800 |
Mechanical life | 5000 | 3000 | 2500 |
Electrical life | 1000 | 1000 | 500 |
Rated working system | Non-stop working | ||
Overvoltage switching setting | 200~300VAC(adjustable) | ||
Undervoltage switching sets the regulation range | 200~300VAC(adjustable) | ||
Contact transition time | <4s | ||
Switching delayt1 | 0.5~30s continuous adjustable | ||
Closing delay t2 | 0.5~30s continuous adjustable |
Product Advantage
According to the voltage state of the working power supply and the working mode set bythe user, the dual power switch decides whether to switch from one power supply toanother power supply. lts function depends on the controller it is configured with, thecontroller includes Y, Y+W2, Y+W3 three types of controller.

1. High Reliability: Ensuring Business Continuity
Automatic Failover: Instantaneously switches to backup power (within milliseconds) during primary power disruptions (e.g., blackouts, voltage fluctuations), preventing equipment shutdown.
Zero Downtime: Critical for data centers, hospitals, and industrial processes where power interruptions could cause data loss, equipment damage, or production halts.
Redundancy: Dual sources act as backups, eliminating single points of failure and enhancing system fault tolerance.
2. Enhanced Safety: Protecting Equipment and Personnel
Voltage Stabilization: Backup power (e.g., UPS) provides clean, regulated power, shielding sensitive devices (servers, precision instruments) from voltage sags, surges, or harmonics.
Surge and Lightning Protection: Integrated surge suppression modules reduce risks from electrical storms or grid anomalies.
Emergency Systems Support: Ensures operation of evacuation lighting, fire alarms, and safety systems during disasters, improving occupant safety.
3. Flexibility and Scalability
Customizable Configurations: Supports combinations like mains + generator, mains + UPS, or dual mains feeds to meet diverse needs.
Load Prioritization: Critical loads (e.g., servers) receive uninterrupted power, while non-essential loads (e.g., HVAC) may be shed or delayed.
Modular Design: Easy to expand capacity or upgrade components as requirements evolve, reducing long-term costs.
4. Cost Efficiency: Long-Term Savings
Mitigated Downtime Costs: Avoids losses from production stops, data recovery, or reputational damage due to outages.
Extended Equipment Lifespan: Stable power reduces wear from frequent cycling or overloading, lowering maintenance and replacement expenses.
Energy Optimization: Smart switching adjusts power usage based on load demand, improving efficiency.
5. Intelligent Management: Remote Monitoring and Maintenance
Real-Time Monitoring: Sensors and software track power status, switchover logs, and battery health.
Predictive Alerts: Notifies administrators via SMS/email/APP of issues like battery degradation or overload risks before failures occur.
Remote Control: Enables switching, testing, or configuration adjustments from anywhere, minimizing on-site visits.
6. Compliance and Certifications
Industry Standards: Meets reliability requirements for healthcare (IEC 60601), finance (PCI DSS), and industrial (IEC 61508) sectors.
Certified Safety: Products typically hold UL, CE, or TÜV certifications, ensuring compatibility and risk-free operation.
Outline And Mounting Dimensions
![]() | A | D | B | C | H1 | H2 | ||
3P | 4P | 3P | 4P | |||||
63 | 380 | 405 | 250 | 340 | 365 | 230 | <160 | 25 |
100 | 405 | 435 | 250 | 365 | 395 | 230 | <170 | 25 |
225 | 450 | 480 | 250 | 410 | 440 | 230 | <190 | 25 |
400 | 570 | 620 | 330 | 510 | 560 | 300 | <200 | 25 |
630 | 680 | 740 | 330 | 620 | 680 | 300 | <250 | 25 |
800 | 750 | 820 | 330 | 690 | 760 | 300 | <250 | 25 |