The Pyrotechnic Battery Disconnect Fuse 1064689 - 00 - J is an essential safety component for Tesla Model 3 and Model Y vehicles from 2017 to 2022. Here is a detailed introduction:
Basic Information: It is black in color and comes in a new, high - quality condition. The package usually includes one high - voltage battery disconnect fuse. Its reference part numbers also include 1064689 - 00 - I and 1064689 - 00 - F.
Function: This is a high - voltage battery disconnect fuse, mainly used for safety protection of the vehicle's battery system1. In case of an emergency, such as a serious collision or a malfunction in the battery system, it can quickly disconnect the high - voltage battery circuit. It uses a pyrotechnic mechanism, which can be activated by a specific signal. Once activated, it will physically separate the battery connections, cutting off the high - voltage power supply to prevent potential safety hazards such as electric shock and fire, and protecting the safety of passengers and maintenance personnel.
Compatibility: Specifically designed for Tesla Model 3 and Model Y produced between 2017 and 2022, it is an important part that conforms to the original vehicle design and can be well - matched with the vehicle's battery system.
Replacement and Installation: Although some replacement fuses claim to be easy to install, it is still recommended to be installed by professionals. This is because the high - voltage system of Tesla vehicles is complex and dangerous, and improper operation may lead to electric shock or damage to the vehicle's electrical system. When replacing, the vehicle's power system needs to be properly shut down and relevant safety precautions should be taken.