Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
240
Replacing the Fuse
The fuse holder is located at the edge of the basic I/O board close to the power supply connection.
Figure 3-4 Placing the fuse
Remove the defective fuse. Insert the new fuse with the following technical data into the fuse holder:
5 mm x 20 mm (0.20 * 0.79 in) safety fuse
T characteristic
2.0 A nominal current
250 V nominal voltage
Switching capacity 1500 A / 300 VDC
Only UL-approved fuses may be used.
This data applies to all device types (24 V/48 V and 60 V – 250 V).
Make sure that the defective fuse has not left any obvious damage on the device. If the fuse trips again after
reconnection of the device, refrain from any further repairs and send the device to Siemens for repair.
The device can now be reassembled again (see Section Reassembly).
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