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$21.19
Ships from China.
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DC 5V-48V Relay Power Off Protection Module, Automatic Dual Power Switch UPS Emergency Cut-Off Controller Board
- Wide DC 5V48V working voltage, compatible with most low-voltage DC power systems
- Auto switch between mains power and backup battery instantly without delay
- Built-in power-off protection & emergency cut-off function to guard electrical loads
- Max 10A load current, reliable relay switching for long-time continuous operation
- Screw terminal design for quick wiring, compact PCB for embedded installation
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This relay control board realizes seamless automatic switching between external power supply and backup battery. Once mains power fails, it instantly switches to battery power to form a simple UPS system, and supports emergency power cut-off protection to avoid device damage from sudden power loss.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
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