Service Conditions; Construction - Siemens SIPROTEC 4 7UT6 Series Manual

Technical Data
4.1 General
recommended permanent operating temperature
(acc. IEC 60255-6)
Limit temperatures for storage
Limit temperatures during transport
Storage and transport of the device with factory packaging!
Humidity
Admissible humidity conditions
All devices shall be installed such that they are not exposed to direct sunlight, nor subject to large fluctua-
tions in temperature that may cause condensation to occur.

Service Conditions

4.1.9
The device is designed for use in an industrial environment or an electrical utility environment, for installa-
tion in standard relay rooms and compartments so that proper installation and electromagnetic compatibility
(EMC) is ensured.
In addition the following is recommended:
•
All contacts and relays that operate in the same cubicle, cabinet, or relay panel as the numerical protec-
tive device should, as a rule, be equipped with suitable surge suppression components.
•
For substations with operating voltages of 100 kV and above, all external cables should be shielded with
a conductive shield earthed at both ends. The shield must be capable of carrying the fault currents that
could occur.
•
Do not withdraw or insert individual modules or boards while the protective device is energised. When
handling the modules or the boards outside of the case, standards for components sensitive to electro-
static discharge (Electrostatic Sensitive Devices) must be observed. There is no hazard where installed
components are concerned.

Construction

4.1.10
Housing
Dimensions
Weight (maximum number of components ) approx.
7UT612
In surface-mounted housing, size
In flush-mounted housing, size
7UT613
In surface-mounted housing, size
In flush-mounted housing, size
7UT633
In surface-mounted housing, size
In surface-mounted housing, size
In flush-mounted housing, size
406
–5 °C bis +55 °C or +23 °F to 131 °F
–25 °C bis +55 °C or –13 °F to +131 °F
–25 °C bis +70 °C or –13 °F to +158 °F
mean value per year
days of the year up to 93 % relative humidity; conden-
sation not permissible!
Humidity; condensation not permissible!
1 /
3
1 /
3
1 /
2
1 /
2
/
1
1
1 / 1)
1
1 /
1
75 % relative humidity; on 56
7XP20
see dimensional drawings in the technical
data section
9,6 kg
5,1 kg
13,5 kg
8,7 kg
22,0 kg
25,3 kg
13,8 kg
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016