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What is ambient temperature for compact NSX?

compact NSX circuit breakers may be used between -25°C and +70°C. For temperatures higher than 40°C(65°C circuit breakers used to protect motor feeders), devices must be derated
Circuit breaker should be put into service under normal ambient, operating-temperature condition. Exceptionally, the circuit breaker may be put into service when the ambient temperature is between -35°C and -25°C
The permissible storage-temperature range for compact NSX circuit breakers in the original packing is -50°C and +85°C
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