Where do you see it? I've been using a lot of similar resistors, none had been specified as fusible.It's fusable resistor
Wirewound type resistor. In case of excessive current flow through it means it will burn and open the circuit (fused).
Yes, but not necessarily in a defined way. The term "fusible resistor" is dedicated to specially designed types with specified fusing behaviour, e.g. this one: https://www.welwyn-tt.com/pdf/datasheet/ULW.pdfI think that will happen with any resistor in overcurrent situation.
When the resistor gets hot, it't still working. At rated power, surface temperature will be quite large (e.g. 150°C) and the resistor possibly looks a bit "burned". You should be able to measure the resistance when the device is switched-off.the resistor does get quite hot and at the sides of the resistor where the wires come out, i can see brown calcification and a bit on top of it. The circuit does turn off time to time and I am just wondering if the resistor could be causing it to?
The resistors you show, will going open in case of overload. Then they are dead. They will not sometimes function and the not.
As long as it gets hot, it's most likely O.K. There's a certain risk of a temporary open circuit.so does that mean that resistor could be gone?
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