4 Technical Data
330
7SD610 Manual
C53000-G1176-C145-4
4.1.8 Deployment Conditions
4.1.9 Constructive versions
The protection device is designed for installation in normal relay rooms and plants, so that electromagnetic immunity
is ensured if installation is done properly.
In addition the following is recommended:
• Contacts and relays operating within the same cabinet or on the same relay board with digital protection equipment,
should be in principle provided with suitable surge suppression components.
• For substations with operating voltages of 100 kV and above, all external cables shall be shielded with a conductive
shield earthed at both ends. For substations with lower operating voltages, no special measures are normally re-
quired.
• For substations with lower operating voltages, no special measures are normally required. When removed, many
components are electrostatically endangered; when handling the EEC standards (standards for Electrostatically
Endangered Components) must be observed. The modules, boards, and device are not endangered when the
device is completely assembled.
Housing 7XP20
Dimensions See dimensional drawings, Section 4.17
Housing Weight
(for maximum number of components)
in flush mounting housing 5 kg (11.02 lb)
In panel surface mounting housing 9.5 kg (20.94 lb)
Degree of protection according to IEC 60529
For surface mounting housing equipment IP 51
For the device in flush-mounted housing
Front IP 51
Rear IP 50
for personell protection IP 2x with closed protection cover
UL-certification conditions Type 1 for front panel mounting
Surrounding air temperature:
tsurr: max. 70
o
C, normal operation
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