操作舒适方便，装配过载过热保护装置，多档电子调速恒功开关，保证马达的高效率和耐用性。

Comfortable and convenient operation, assembly thermal overload protection device and multi-file electronic speed constant power switch ensure high motor efficiency and durability.

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安全开关保护装置，当马达过载或单向运转时，安全开关会自动切断电源。

C. safety switch protection device, when the motor is overloaded or when one-way operation, the safety switch will automatically cut off the power supply.

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