Series Overview Outline Compliant Standards
● GB/T 14048.1 General Rules
● GB/T 14048.2 Circuit-breakers
● IEC 60947-1 General Rules
● IEC 60947-2 Circuit-breakers
Pollution Degree
CIM6EI series products operate in an environment defined as Pollution Degree 3 by standards IEC 60947-1 and IEC 60664-1 (industrial environment).
Resistance to Damp Heat
Dry cold, dry heat, damp heat ambient temperature.
Ambient Air Temperature
Upper limit: +70°C, Lower limit: -40°C; 24-hour average temperature not exceeding +35°C (Note: Usable within the range -40°C to -25°C and +40°C to +70°C).
Storage Temperature: -40°C to +70°C
Altitude
Normal operating installation altitude does not exceed 2000m.
Humidity
Must be satisfied during normal operation:
● At an ambient air temperature of +40°C, the relative humidity of the atmosphere must not exceed 50%. At lower temperatures, higher relative humidity is permissible.
● The monthly average relative humidity of the wettest month is 90%.
● The impact of condensation on product surfaces on product performance must be considered.
Reliable Contact Indication with Isolation Function
CIM6Ei series Molded Case Circuit Breakers (MCCBs) comply with the isolation definition in IEC 60947-2.
● The isolation position corresponds to the 0 (OFF) position.
● The operating handle can only indicate the "OFF" position when the contacts are actually open.
● The reliability of the contact indication system is not affected by rotating the handle or operating the motor mechanism.
● Tested to ensure the isolation function is safe and reliable.
Protection Degree (IP Rating)
● Breaker body: IP20 (excluding terminals)
Breaker installed in switchgear:
● With rotary handle: IP40
● With motor-operated mechanism: IP40