Dual AC Power Auto Switching Module 85-240V 10A Controller
Dual AC Power Auto Switching Module 85-240V 10A Controller
Dual AC Power Supply Automatic Switching Controller Module
Keep your equipment running without interruption with this compact and reliable Dual AC Power Supply Automatic Switching Controller Module. Designed for wide voltage compatibility (85V–240V AC) and a maximum load current of 10A, this intelligent board automatically detects a primary power failure and seamlessly switches to a backup power source — then switches back when the main supply is restored. Ideal for home automation, industrial control panels, emergency backup systems, and DIY electronics projects.
Key Features
- Wide Voltage Range: Compatible with 85V–240V AC on both main and backup inputs — works globally across different mains standards.
- Automatic Failover: Instantly detects primary power loss and switches to backup supply with only ~10ms of switchover downtime.
- Auto Restoration: Automatically returns to the main power source once it is restored — no manual intervention needed.
- 10A Maximum Load Current: Rated capacity of 40–1000VA, suitable for a wide range of AC loads.
- Main Power Indicator: Built-in status indicator shows which power source is currently active at a glance.
- Dual Power Input: Accepts two independent AC power sources for true redundancy and emergency backup capability.
- Compact Form Factor: Measures just 70 × 48 × 18.5mm — easy to integrate into enclosures, panels, or custom builds.
- Wide Temperature & Humidity Tolerance: Operates reliably from -25°C to +85°C and 5%–95% RH.
Technical Specifications
| Model | YX-Q01 |
| Main Power Supply Voltage | 85V–240V AC |
| Backup Power Supply Voltage | 85V–240V AC |
| Maximum Load Current | 10A |
| Rated Capacity | 40–1000VA |
| Working Temperature | -25°C to +85°C |
| Working Humidity | 5%–95% RH |
| Dimensions | 70 × 48 × 18.5mm |
| Country of Origin | Made in China |
What's in the Box
- 1 × Dual Power Supply Automatic Switching Controller Board (Model YX-Q01)
Important Notes
- At the moment of switching between power sources, the output is interrupted for approximately 10 milliseconds. This is normal operation.
- The output voltage equals the active input voltage — no regulation is applied.
- Slight dimensional variations may occur due to manual measurement methods.
- Product color may vary slightly from images due to lighting and display differences.
- This module operates at high voltage (above 50V AC / 75V DC). Always follow safe wiring practices. For electrical safety guidelines, refer to OSHA Electrical Safety Standards.
Frequently Asked Questions
Q: What happens when the main AC power is restored after an outage?
A: The dual power supply switching controller module automatically detects when the main AC power source is restored and switches back from the backup supply to the main supply — no manual action is required. The switchover takes approximately 10 milliseconds.
Q: Is this dual power switching module compatible with both 110V and 220V systems?
A: Yes. The module accepts both main and backup AC inputs in the range of 85V–240V AC, making it compatible with standard 110V North American mains as well as 220V/240V European and international power systems.
Q: What types of projects or applications is this module best suited for?
A: This automatic switching controller board is ideal for home automation systems, DIY electronics projects, industrial control panels, emergency backup power setups, server or networking equipment protection, and any application requiring uninterrupted AC power delivery up to 10A (40–1000VA).
Q: How difficult is it to install this switching board module?
A: The module is designed for straightforward integration into standard enclosures and control panels. Connect your primary AC source, backup AC source, and load output to the clearly labeled terminals. Always ensure the power is off before wiring, and consult a qualified electrician if you are unfamiliar with high-voltage AC wiring.