MV155F1DBS50E

MV155F1DBS50E Application Field and Working Principle

MV155F1DBS50E is a class of medium voltage (MV) motor circuit protection fuse, which is designed to protect the motor from overcurrent and short circuit damage. It is manufactured by the Eaton Corporation and is widely used in a variety of industries, from automotive and heavy industrial applications, to commercial and residential installations. The fuse offers both reliable protection and superior performance.

Application Field

MV155F1DBS50E is used in medium voltage motor circuit protection applications, such as for the following: electrical substations, pumps, turbines, generators, and other industrial motor circuits. The fuse was designed for protection of medium voltage (6kV or higher) up to 208 kV motor circuits and is UL 4248 and UL 2559 recognized, meeting both performance and safety benchmarks.

Working Principle

The working principle of MV155F1DBS50E is based on two elements: mechanical and electrical. In order for the fuse to work properly, the two must be in balance. The fuse consists of a silver alloy wire enclosed in ceramic/plastic cage. When an overcurrent or short circuit occurs, the silver alloy wire melts and breaks the circuit. At the same time, the fuse cage allows the molten silver to form an arc, which helps limit the current.

In order to ensure that the fuse can successfully complete its task, it is important to select the appropriate fuse size, voltage and interrupting rating for the application. The fuse size is based on the amperage of the protected motor; the voltage rating must suit the voltage rating of the protected motor circuit; and the interrupting rating must be higher than the prospective fault current.

Conclusion

MV155F1DBS50E is a class of medium voltage motor circuit protection fuse, manufactured by the Eaton Corporation. It is UL 4248 and UL 2559 recognized and is widely used in medium voltage motor circuit protection applications. The fuse combines both mechanical and electrical elements to provide reliable protection and superior performance. It is important to select the appropriate fuse size, voltage and interrupting rating for the application to ensure proper protection.