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  • 产品名称: CW3 Series Intelligent Universal Circuit Breaker

Overview

The circuit breaker is suitable for AC 50Hz/60Hz distribution networks with the rated working voltage of 400V and 690V and the rated current of 7,400A or below, which can not only protect circuits but also can protect motors (the circuit breaker meets the requirements of GB 50055 on motor protection), generators (the circuit breaker meets the requirements of GB 755 on generator protection) and other kinds of equipment, thus providing users with safer, more reliable and more comprehensive low-voltage distribution protection schemes. 

√Intelligent power operation management, small volume, perfect maintenance performance, reliable protection, isolating function;
√Extremely high circuit breaking and short circuit withstand capacity, service short-circuit breaking capacity Ics=ultimate short-circuit breaking capacity Icu=short circuit withstand capacity Icw, to improve the operation reliability;
√The circuit breaker can be optionally matched with different intelligent controllers, with measurement accuracy (1%), intelligent power operation management (such as harmonic monitoring, power and electrical degree display) and LCD;
√It can monitor internal temperatures, internal accessories, bodies, the operation conditions (patented technologies) of the drawer seat;
√Safety use, superior performance: the panel has intuitive switch-on ready indications; the drawer type has three position indications, “Connect”, “Test” and “Separate”, as well as locking devices (patented technologies);
√The main loop wiring terminal is convenient to connect, which can realize horizontal connection, vertical connection and mixed connection; the quantity of auxiliary contacts is optional, facilitating in configuration increasing;
√A zone selective interlocking function can be selected to ensure complete selectivity of protection of all levels;
√It can realize intelligent network monitoring, and can be applied to Modbus, Profibus, Devicenet, CAN and TCP communication protocols, facilitating in integrated management of users;
√It can be equipped with FDM3 SMS notification module, to realize remote warning and monitoring;
√The circuit breaker accords with IEC60947-2 and GB14048.2 standards;
√The circuit breaker has obtained the “CCC” mark.

 

Regular Service Conditions

The ambient air temperature of -5℃~+40℃, and the average value in 24 hours is not more than +35℃;
The elevation of installation sites cannot be more than 2,000m;
The relative air humidity cannot be more than 50% at the highest temperature of +40℃; relatively high humidity such as 90% at 20℃ is available at relatively low temperature; please take special measures to remove condensation occasionally generated by temperature variation;
The pollution grade is III;
The installation category of the main circuit of the circuit breaker is IV, while the installation category of the other auxiliary circuits and control circuits is III;
The circuit breaker is suitable for electromagnetic environment A;
Damp and tropical type (TH type) circuit breakers can resist to the influences of humid air, salt mist, oil mist and mildew;
The vertical gradient of the circuit breaker during installation is not more than 5°;
The circuit breaker should be installed in places without explosion hazards, conducting dust, metal corrosion and insulation damages;
The circuit breaker should be installed in small cabinet chambers, and be equipped with door frames, with the protection level up to IP40.