[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

安装前必须确认配电箱为标准35mm DIN导轨,并核对断路器模数(单极18mm)与箱内剩余位数,带漏电+计量功能的智能断路器通常占2~4个模数位,老式配电箱可能空间不足

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88%
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Long-term
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