Technical Data
326
7SS52 V4 Manual
C53000-G1176-C182-3
9.2.16 Climatic Stress Tests
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Temperatures Standard: IEC 60255–6
Permissible ambient temperature
– in service − 10 °C to + 55 °C (14 °F to 131 °F) (bay unit)
− 5 °C to + 55 °C (23 °F to 131 °F) (central unit)
– for storage − 25 °C to + 70 °C (-13 °F to 158 °F)
– during transport − 25 °C to + 70 °C (-13 °F to 158 °F)
– during start-up − 10 °C to + 55 °C (14 °F to 131 °F) (bay unit)*
0 °C to + 55 °C (32 °F to 131 °F) (central unit)
Storage and transport with factory packaging!
* Commissioning at temperatures ≤ 0 °C may only be performed if plant conditions
ensure that no command/trip outputs can be activated until the modules have reached
their minimum permissible service temperature!
Humidity Permissible humidity yearly mean ≤ 75% relative humidity;
in service on 30 in the year up to 95% relative
humidity; moisture condensation not
permissible
We recommend to install the devices so that they are not subject to direct sunlight
and strong fluctuations in temperature which could lead to moisture condensation.
Commissioning at temperatures ≤ 0 °C is permissible only if site conditions ensure
that no command output can be activated before the device temperature has reached
0 °C.
Warning!
Commissioning at temperatures ≤ 0 °C may only be performed if plant conditions en-
sure that no command/trip outputs can be activated until the modules have reached
their minimum permissible service temperature.
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