april
Member
I have a batch of old black Polyswitches marked CNTC 2.5 and wondered if anyone recognised this and what voltage or current they are?
I put one in a battery charger circuit and it took 12.5 A for a few seconds on direct short and with a constant 4 Amps it smoked but did not cut out?
I put one in a battery charger circuit and it took 12.5 A for a few seconds on direct short and with a constant 4 Amps it smoked but did not cut out?
Last edited: