JXW45 Intelligent Universal Circuit Breaker

Basic Specification and Main Parameters

Structure Characteristics of Intelligent Air Circuit Breaker(ACB)

1. Our intelligent air circuit breaker can be of a fixed type and draw-out type. The fixed type air circuit breaker is installed within a special drawer to become a draw-out type breaker. Our circuit breaker consists of a contact system, and arc-extinguishing system, operating mechanism, current transformer, intelligent controller and auxiliary switches, secondary plug and socket, under voltage and shunt releases. The draw-out type air circuit breaker has a holder that is made up of right and left side plates, base, beams, etc.

2. Contact system
It adopts integrated contact system, including the main contact and arc contact.  

3. Arc-extinguishing chamber
Each pole has an arc-extinguishing chamber, which works to separate and isolate each electrode. The arc extinguishing chamber is enclosed within the insulating base of the intelligent air circuit breaker, which enforces the mechanical strength of arc extinguishing chamber wall and avoids breakage when it is breaking a large short circuit current.

Environment Conditions for Operation

Temperature condition: -5℃ ~+40℃ ; the average value within 24h not exceed +35℃ . 

Elevation: altitude of installation place shall not exceed 2000m. 

Atmosphere condition: relative humidity at +40℃ shall not exceed 50%. Higher humidity is permissible at lower temperature condition. When the higher monthly average relative humidity is 90% in the humiddest month , the lowest monthly average temperature of this month is +25℃ . And consider the influence of dew on product surface due to temperature changes. 

Pollution grade: gradeIII. 

The breaker should be installed according to the requirement on the instruction manual: the vertical inclination degree shall not exceed 5°.

Outline and Installation Dimensions

Product Detail