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11. MAINTENANCE & TROUBLESHOOTING
11-5
11.5 Replacement of Fuses
To protect the equipment from overcurrent and equipment fault, two fuses are provided in
the PR-300 Power Supply Unit. If a fuse blows, find the cause before replacing it. If it blows
again after replacement, request service.
WARNING
Use the proper fuse.
Use of a wrong fuse can cause fire or
damage to the equipment.
Unit
Fuse
Power Supply Unit
PR-300
10 A (100 VAC) or
5 A (200 VAC) and
20 A (24 VDC)
Note: The Power Supply Unit PR-850A (for FS-1570/2570), used with the equipment, does
not have a fuse but a circuit breaker. If the breaker has tripped, find the reason before
resetting the breaker (upward position).