Fuses

A fuse is an electrical protection device which is designed to prevent an overload or short circuit of electricity. Fuses protect circuit boards from over-currents, and provide an easy way to disconnect the circuit from the power source. Fuses are classified by their physical size, current-carrying capacity, and operating time. They also come in various ratings, depending on the application.

TR1/MCRS250MA application field and working principle

The TR1/MCRS250MA fuse is a low current time-delay fuse. It is used in applications such as Motor Control, Power Supplies, Lighting, Motors and Transducers. The TR1/MCRS250MA fuse is UL, CSA, TUV and CE approved. The TR1/MCRS250MA fuse is designed with a polymeric material body and a metallized film element. The fuse has a current rating of 250mA and a voltage rating of 500VAC (UL). The fuse will open in 1.7 seconds for a 25A overload current.

The TR1/MCRS250MA fuse uses its metallized film element to detect the overload current. When the current exceeds the rated current, the heat generated by the current melts the element and thus interrupts the electrical circuit. The TR1/MCRS250MA fuse also includes a time-delay feature. With this feature, the fuse will allow short-duration motor starting inrush currents or short transient overloads to pass without opening.

Conclusion

The TR1/MCRS250MA fuse is an excellent choice when you need reliable protection for a low current circuit. It has a rating of 250mA and a voltage rating of 500VAC (UL), and it has a time-delay feature which allows short-duration inrush currents to pass without the fuse opening. This fuse also meets UL, CSA, TUV and CE safety standards.