The pyrofuse of the high-voltage battery in BMW BEV iX3, i3(after 2020), iX,i4,i5,i7 etc.
2PCS in SME and 1PCS in the connection box.
one set is including those 3PCS.
This price is for 3PCS/set.
 
Working Principle: 
 
When a BEV of BMW is involved in an accident, the two normally closed Pyro Fuses in the SME  will rapidly disconnect, preventing the high-voltage electricity in the battery pack from being discharged outward. Meanwhile, the normally open Pyro Fuse in the junction box will quickly conduct, allowing the high-voltage capacitors in high-voltage components such as the EME to discharge their electrical energy within a short time, thus avoiding electric shock to personnel caused by damaged high-voltage components.