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TLO Fuses are medium time-delay Edison-base fuses designed for general-purpose branch-circuit protection. See TOO and SOO fuses for motor protection. Use for replacement purposes only.
TLO Parts
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TLO Applications
- Per the NEC, install Edison base fuses only as replacements when no evidence of overfusing or damage exists
- All new Edison base fuse holders must have Type S fuse adapters installed before the holders and fuses are placed in service
- Type S adapters cannot be removed after they are installed, and they prevent the installation of fuses that are too large or too small
- Type S adapters also prevent shunting of open fuses and reduce nuisance fuse opening
