Time-delay fuse link DIII GG 63A 690V~ (BIWTZ) 002313409

Electrical installation safety and protection

DIII gG 63A 690V fuse link is a protective element designed to protect electrical circuits against overloads and short circuits. Its function is to quickly disconnect the power supply in the event of a dangerous condition, minimizing the risk of damage to equipment and fire. The time-delay design (gG characteristic) provides resistance to short-term overvoltages that may occur during the starting of motors or other devices with high current draw. This is crucial for installations where such situations are frequent.

Characteristics and application

ETI Polam DIII series fuse link, with a rated current of 63A and a voltage of 690V, is used in industrial and construction electrical installations. It is compatible with E33 sockets, which simplifies its replacement and installation. The copper color indicates the material of the current-carrying element. The time-delay characteristic (gG) makes this fuse link particularly recommended for protecting circuits supplying devices with high inrush current – e.g. motors, transformers or heaters. This will prevent unnecessary tripping of the circuit during normal operation of these devices.

Construction and parameters

DIII fuse link is characterized by a solid construction ensuring reliable operation in difficult operating conditions. Its DIII size is a standard in many electrical installations, which ensures wide compatibility with commercially available fuse holders. The rated current of 63A and the rated voltage of 690V define the range of parameters within which the fuse link will operate correctly and effectively protect the circuit. The short-circuit interrupting capacity of up to 50kA guarantees effective interruption of the current flow in the event of a short circuit, protecting both equipment and the electrical installation from serious damage.