Circuit breaker wiring methods are before the board, after the board, plug-in, drawer type, users such as no special requirements, are supplied according to the board, before the board wiring is a common wiring method.
1, after the board wiring method: after the board wiring is the biggest feature is to replace or repair the circuit breaker, without rewiring, only the front power disconnected. Due to the special structure, the product factory has been configured according to the design requirements of special mounting plates and mounting screws and wiring screws, special attention needs to be paid to the reliability of the contact due to high-capacity circuit breakers will directly affect the normal use of the circuit breaker, so the installation must pay attention to, strictly according to the manufacturer’s requirements for installation.
2, plug-in wiring: in the installation plate of the complete set of devices, first install a circuit breaker mounting block, mounting block 6 plugs, circuit breaker connection plate with 6 sockets. The face of the mount has a connection plate or a bolt behind the mount, and the mount is pre-wired with power and load wires. When using, plug the circuit breaker directly into the mount. If the circuit breaker is broken, just pull out the bad one and replace it with a good one. It is shorter and more convenient to replace than the wiring before and after the board. As plugging and pulling requires a certain amount of manpower. Therefore the Chinese plug-in products, the shell frame current is limited to a maximum of 400 A. This saves maintenance and replacement time. Plug-in circuit breaker should check whether the plug of the circuit breaker is pressed tightly during installation, and the circuit breaker should be fastened safely to reduce contact resistance and improve reliability.
3、Drawer wiring: The in and out drawer of the circuit breaker is rotated clockwise or counterclockwise by a rocker in both the main circuit and the secondary circuit
Inserted structure, omitting the isolator necessary for fixed, to do a machine two, improve the economy of use, while bringing great convenience to the operation and maintenance, increased safety, reliability. Especially, the main circuit contact block of drawer block can be common with NT type fusion circuit breaker contact block.