
STP-200/300/400 Series Instruction Manual
12.3 Replacing the Fuses
◇ Remove the probable causes of the blown fuse before replacing the
fuse.
◇ Always use specified and rated fuses.
◇ If fuses are blown frequently even after they are replaced, contact
Service office.
The following are protective fuses used in the STP control unit (See Section 4.1.3,
"Inside of the Control Unit").
F2 : 125 V, 8 A (for control power protection)
F3 : 250 V, 3 A (for inverter and air cooling fan protection)
F4 : 250 V, 5 A (for control power protection)
F5 : 125 V, 10 A (for internal and external batteries protection)
◇ Two of each four different kinds of fuses are attached for
replacement (See Table 16.4).
◇ For recommended fuses, see Table 16.6, “Recommended Spare
Parts.”
12-2
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