Siemens SENTRON 3WL10 Series Manual page 112

Application planning
4.1 Types of installation and installation locations
Degree of protection
The 3WL10 air circuit breaker has the following degrees of protection (fixed breaker and
withdrawable breaker):
● IP20 for circuit breakers, except for the terminals
● IP30 for the front of the circuit breaker if installed in switchboards with a door sealing
frame IP30 (see Chapter Accessories for connection and insulation (Page 71))
● IP54 for the front of the circuit breaker if installed in switchboards with a padlockable
protective cover IP54 (see Chapter Accessories for connection and insulation (Page 71))
Pollution degree
Operation of the circuit breaker is approved in accordance with IEC / EN 60947 for pollution
degree 3.
The circuit breaker also complies with the following standards:
● IEC60721-3-6 class 6C3
● IEC60721-3-3 class 3C2
Ambient temperature
The circuit breaker can be operated in ambient temperatures from -25 °C to +70 °C. At
temperatures of up to +70 °C, too, the rated current is not reduced (derating, see below).
The display of the electronic trip units of the 6-series is active over the entire operating
range.
The permissible storage temperature in original Siemens packaging is between -40 °C
and +70 °C.
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Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01