250 amps. The battery will likely not supply this, and if it did, the wiring would object. Current sensing in the ESC should limit maximum current to a value safe for the ESC, the fuse protects everything at a slightly lower value, but not as quickly as the ESC protection. If it stalls, everything simply switches off. If the condition persists, the fuse blows to prevent incineration. If the motor can be repeatedly switched on and off under load without blowing the fuse, there will be no problems in operation.
There is a difference between electronics and wire warming up - it was truly said that "any transistor will protect any fuse" meaning that the electronics would react by dying first. A protection circuit harnesses this speed by protecting at semiconductor speed. To blow quickly, a "normal" fuse takes about 2X its rated value.
This motor will probably be OK, but as Mr Jacket says,for model use, motors designed for use in models usually work better than motors designed for other applications.