| Thermal protection can be built in to our
toroidal transformers in the form of thermal sensitive
fuses and switches (thermostats). These protectors are
generally built inline into the primary winding, and are
in close thermal contact with the windings. Thermal
fuses are not resettable and once blown cannot be
replaced. Thermal switches are designed to open at a set
temperature and will close again upon cooling, reforming
the primary circuit (with slight hysteresis). These
protectors may be required to satisfy certain safety
approvals. Customer specified protection can be added in
the form of Normally Open switches, as well as
incorporation into specific windings. Thermal protection
always adds to the cost of toroidals and can affect the
transformer geometry slightly. Our engineers are pleased
to advise on protection issues. |
