COSMOS DRIVER SERIES 3000 - USE AND MAINTENANCE MANUAL
5.5 Choice of the wires and fuses
5.5.1 Protection for use exclusively in compliance with IEC 61800-5-1
The below chart shows the size of the power supply cables and fuses; the values refer to ambient temperature equal to
40°C and to PVC insulated wires.
Input current [A]
Minimum section [mm
2
]
Maximum fuse rating [A]
Cable laying mode: category B1 (in accordance with EN 60204-1). gG fuses.
I < 8.5
1.5
10
8.5 ≤ I < 10.0
2.5
16
10.0 ≤ I < 17.0
4.0
20
I ≥ 17.0
6.0
25
Cable laying mode: category B2 (in accordance with EN 60204-1). gG fuses.
I < 5.0
1.0
6
5.0 ≤ I < 8.5
1.5
10
8.5 ≤ I < 10.0
2.5
12
10.0 ≤ I < 17.0
4.0
20
I ≥ 17.0
6.0
25
In order to allow protection of the device and power supply conductors (in compliance with IEC 60204-1), the use of
fuses in series with both power supply lines is recommended. The protective conductor (PE/Ground) must never be
sectioned.
The breaking capacity of the fuse used must be greater than the maximum short-circuit current expected at the point of
installation; it must be limited to 5 kA max. at the servo drive input.
In the event that the servo drive is to be used for the construction of a machine, refer to the EN 60204-1 standard for
more information on the dimensioning criteria.
The use of conductors with a section below the recommended value could cause a risk of fire and
damage to persons and property.
The use of an unsuitable overcurrent protection device could cause it to fail to intervene, with
danger to people and things. Furthermore, spurious protection interventions may occur.
Ver. 1.07
Pag. 49
