GC-13 : SPLITTER-BOX DUAL-CABLE MONITORING WITH AN SE-135 Technical Note
●An SE-135 Ground-Fault Ground-Check Monitor can protect the cables entering and leaving a dual-cable splitter box (junction box), when one is terminated with an SE-TA24A and the other with an SE-TA24B Termination Assembly. The SE-MUX was previously used to monitor two ground-check circuits by sampling each ground-check circuit every half second. As a result, ground-check trip times were increased by up to a half second. The improved method provides continuous monitoring of both ground-check circuits; therefore ground-check trip times are not increased, and the complexity of splitter boxes is reduced. Littelfuse recommends replacing the SE-MUX in splitter-box applications with an SE-TA24A and an SE-TA24B, as shown in Fig. 1.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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112018 |
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Rev. 112018 |
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TN-GC1 |
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389 KB |
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