Siemens siprotec 7SA6 User Manual

Technical Data
10-12 7SA6 Manual
C53000-G1176-C156
10.1.7 Climatic Stress Tests
Ambient
Temperatures
Standards: IEC 60255–6
– recommended operating temperature –5 °C to +55 °C (+23 °F to +131 °F)
if max. half of the inputs and outputs are subjected
to the max. permissible values
– recommended operating temperature –5 °C to +40 °C (+23 °F to +104 °F)
if all inputs and outputs are subjected
to the max. permissible values
– limiting temporary (transient) –20 °C to +70 °C
operating temperature (–4 °F to 158 °F)
in quiescent state, i.e. no pick-up and no
indications
– limiting temperature during storage –25 °C to +55 °C (–13 °F to 131 °F)
– limiting temperature during transport –25 °C to +70 °C (–13 °F to 158 °F)
Storage and transport of the device with factory packaging!
Humidity Permissible humidity mean value p. year ≤75 % relative humidity
on 56 days per year up to 93 % relative
humidity; condensation not permissible!
It is recommended that all devices are installed such that they are not exposed to di-
rect sunlight, nor subject to large fluctuations in temperature that may cause conden-
sation to occur.
10.1.8 Service Conditions
The device is designed for use in an industrial environment or an electrical utility en-
vironment, for installation in standard relay rooms and compartments so that proper
installation and electromagnetic compatibility (EMC) is ensured. In addition, the follow-
ing are recommended:
• All contactors and relays that operate in the same cubicle, cabinet, or relay panel
as the numerical protective 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
shouldbeshieldedwithaconductiveshieldgroundedatbothends.Theshieldmust
be capable of carrying the fault currents that could occur. For substations with lower
operating voltages, no special measures are normally required.
• Do not withdraw or insert individual modules or boards while the protective device
is energized. When handling the modules or the boards outside of the case, stand-
ards for components sensitive to electrostatic discharge (ESD) must be observed.
The modules, boards, and device are not endangered when the device is complete-
ly assembled.
Visibility of display
may be impaired
above +55 °C/130 °F

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English