The Polyswitch is placed in series with the Load
Raychem Circuit Protection’s PolySwitch™ Polymeric
Positive Temperature Coefficient (PPTC) devices are
used to help protect against harmful overcurrent
surges and overtemperature faults.
Like traditional fuses, these devices limit the flow of
dangerously high current during fault conditions.
The PolySwitch device, however, resets after the fault