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Environmental friendly
Design/manufacturing
Operation
Recycle
Transportation
The Ex9M circuit breakers comply with the requirements of RoHS
and are manufactured according to ISO 14001 standards.
Low heat generation and power consumption during operation, with
less impact on surroundings.
Over 80% of the materials are recyclable after the service life is over.
With sustainability in mind, we use environmental friendly materials
during transportation.
Operation conditions
Temperature
Altitude
Humidity:
Pollution class
Derating
The operating and storage temperature of Ex9M circuit breakers is -40 °C~+70 °C (the operating
temperature for basic type (dial switch) electric circuit breakers is -35 °C ~+70 °C, and the operating
temperature for standard type (LCD) electronic circuit breakers is -25 °C ~+70 °C), with average
temperature within 24h below +35 °C. User should derate the circuit breaker or take temperature
compensation methods if the ambient temperature is -40 °C ~+70 °C, please see Curves and
Parameters for detailed coefficient.
Normally, the product should not be installed above 2000m
If user has to install the product above 2000m, it should derate the circuit breaker
according to the coefficient table in Curves and Parameters or consult Noark.
Conditions for normal operation:
Class 3
The relative humidity should not exceed 50% if the ambient temperature is +40°C; higher
humidity is allowed if the temperature is lower
The average relative humidity of the wettest month is 90%
The impact of surface condensation on the product should be considered
Derating based on temperature change
If the temperature e40°C, the overload protection feature of Ex9M circuit breakers will
change slightly as the temperature changes. In this case, the set value of Ir on the time/current
curve must be decreased, to ensure the normal operation of the circuit breaker under high
temperature. (Please see Curves and Parameters for details)
Derating based on altitude change
If the altitude is below 2000m, there will be no significant changes in the performance of Ex9M
circuit breakers. If the altitude is above 2000m, user should consider the change of dielectric
strength and the decrease of ambient temperature. If the breaking capacity remains the same,
the maximum operating voltage of the circuit breaker must be decreased accordingly. (Please
see Curves and Parameters for details)
%rh
km
km/℃
℃
Features
Features
Halogen element
Asbestos
Cadmium
hlorofluorocarbon