避免柜门的开关次数过多及留意柜门的橡胶圈是否紧密。
Do not open the doors frequently and make sure the rubber stripping of the door is in proper condition.
启用软启动保护装置，避免瞬间电流对LED的冲击，有效保护LED，使用寿命达50000小时，且不计开关次数。
With protection of soft starting, which can avoid transient currents impact, and effectively protect LED. Using life over 50000 hours.
作为技术指标，如果在最大信号电平下采用冷切换而非热切换，那么触点寿命将会从105次开关次数延长至108次开关次数。
As the specifications state, if cold switching is used instead of hot switching at maximum signal levels, contact life is extended from 105 closures to 108 closures.
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