CHM1E electronic molded case circuit breaker
Short Description:
CHM1E series electronic molded case circuit breakers. This is one of the new types of circuit breakers developed and developed by our factory using international advanced design and manufacturing technology. Its rated insulation voltage is 1000V, suitable for circuits with AC 50/60Hz, rated working voltage400V,
Product details
Basic parameters：
CHM1E series electronic molded case circuit breakers. This is one of the new types of circuit breakers developed and developed by our factory using international advanced design and manufacturing technology. Its rated insulation voltage is 1000V, suitable for circuits with AC 50/60Hz, rated working voltage400V, and rated working current up to 1250A for infrequent switching and infrequent starting of motors. The circuit breaker has the functions of overload time delay inverse time, short circuit short time delay inverse time, short circuit short time delay definite time, short circuit instantaneous and undervoltage protection, which can protect the and power equipment from damage. The circuit breaker is divided into three categories according to the high and low rated ultimate breaking capacity (lcu): L type (basic type), type (higher breaking type) and H type (high breaking type). This circuit breaker has the characteristics of small volume, high breaking capacity, short arc, shock resistance,.
The circuit breaker can be installed vertically (i.e. upright) or horizontally (i.e. horizontal).
This circuit breaker cannot be connected in reverse, i.e., only 1, 3, 5 can be connected to the power line, 2, 4, 6 to the load line.
The circuit breaker has an isolating function, and its symbol is represented as
The circuit breaker can be equipped with residual current protection (optional), phase loss protection function (optional) by increasing the corresponding accessories, where the "B type control is equipped with a communication interface, which can be used for "four remotes" to meet the requirements of the control center and automation system.
Model meaning:
Normal working conditions;
The altitude of the installation site shall not exceed 2000m;
The surrounding air temperature shall not exceed 40℃ and the average value of the
surrounding air temperature shall not exceed 35℃ within 24h and the lower limit of the surrounding air temperature shall be -5℃.
The relative humidity of the air must not exceed 50% when the maximum temperature is 40℃, higher relative humidities being permitted at temperatures, e.g. 90% at 20℃. Special measures shall be taken to prevent condensation from forming on the product as a result of temperature changes
The pollution level is 3rd grade.
The installation category of the main circuit of the circuit breaker is Class III, and the installation category of the auxiliary circuit and control circuit that do not connect to main circuit is;
Use category A or B.
