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The HOBBYWING 300A Safety E-power Switch is a high-performance anti-spark module designed for industrial drones and electric systems. It supports up to 18S high-voltage lithium polymer batteries, delivering stable 300A continuous current under efficient cooling (5m/s wind).
Its advanced electronic switch enables real-time power control, preventing accidental motor movement, while delayed power-on technology eliminates sparks and noises, extending ESC and connector life.
Encased with full glue encapsulation, it achieves IP67 waterproof and dustproof protection, ensuring reliable operation in harsh environments (-40°C~65°C).
With over 1000 hours of aging tests and 300+ flight verifications, this module guarantees long lifespan, safety, and stability for heavy-duty UAV systems.




| Product Name | 300A Safety E-power Switch 14S-300A |
|---|---|
| Specification | 14S-300A |
| Input voltage | 36V-60.9V |
| Current (good heat dissipation) | 300A |
| Volume (with screw holes) | 98.0*90.0*24.0mm |
| Weight | 518.5±5g |
| Product Name | 300A Safety E-power Switch 18S-300A |
|---|---|
| Specification | 18S-300A |
| Input voltage | 36V-78.3V |
| Current (good heat dissipation) | 300A |
| Volume (with screw holes) | 98.0*90.0*24.0mm |
| Weight | 518.5±5g |
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