ABB 1YMB710729M1611 belongs to HV CEF type fuse, which is a high-voltage current-limiting backup fuse. The specific information is as follows:
Rated parameters: As it belongs to CEF type fuse, its rated voltage range is 3.6/7.2 - 36kV, and the rated current of this model is 63A.
Product features:
Designed and tested in accordance with IEC60282 - 1 standard, the size is consistent with DIN43625, and it is authoritative and universal.
It has the characteristics of low minimum breaking current, low power consumption, and low arc voltage, which can effectively protect the circuit while reducing the impact on the circuit system.
It has high breaking capacity and high current limiting characteristics, which can significantly reduce short-circuit current, extend the insulation life of equipment, and ensure equipment safety.
The integrated striker and temperature control unit (TCU) can prevent overheating at the installation point, control the internal arc initiation through the overload point design, and have excellent temperature performance.
The uniform voltage rating makes the application more flexible, and a single fuse version is available for both indoor and outdoor use, suitable for a variety of environments.
The narrow resistance tolerance facilitates better fuse synchronization in three-phase networks. The key data of the fuse is engraved on the outer surface for long-term identification.
Application scenarios: Mainly used to protect distribution transformers, cables, overhead lines and other equipment from the thermal and dynamic effects of short-circuit currents, suitable for indoor/outdoor and oil-immersed installations.