我們在保險絲的選用法則上，除了參考我們最常用的額定電流、額定電壓、分段電流，以及溫升測試、過載測試和分段測試之外，還會用到以下術語，瑞卓為您列出僅供您在保險絲專業知識的認知上更進一步，幫助您進行更精準的保險絲選型：
Fuse Characteristics：
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aM | Motor-Start or a Time-Delay to allow for motor surge start-up |
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aR | Semiconductor protection partial range breaking capacity |
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F |
Fast-acting |
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FF | Fast-fast very fast |
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Flink | Fast-acting fast-blow |
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gG | General purpose |
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gL | General purpose |
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gR | Semiconductor protection current-limiting |
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gT | Transformer |
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HRC | High rupturing capacity |
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M | Medium-delay time-lag |
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M | Motor-start |
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PTC | Resettable fuse to 60V and 11A current-limiting |
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SF | Super-flink fast-fast |
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T | Time-delay slow-acting slow-blow |
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TT | Extended time-delay |
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Trage | Slow-blow |
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UR |
Ultra Rapid semiconductor protection Ultra Quick™ |
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i2t |
is a measure of current (I) and time (t), that would be the thermal energy let through during short circuit interruption, as the integral of the square of the current over a given time expressed in ampere square seconds. Data may refer to pre-arcing or melting i2t for high currents which is practically a constant value, or refer to an operational i2t which varies with circuit conditions |
