What is the difference between gG, gR, aM, and aR.gPV.gBat fuses?
IEC International Electrotechnical Standards. They are all different types of fuses and their working methods are different The practical scenarios are different.
gG/gL is a universal full range protection fuse that can handle low overload current faults, but can clear high short-circuit faults. Their operating speed is not as fast as other fuses. Generally used as cable and wire protection gR fuses, they provide some overload protection, but operate slower during short circuits. Mainly for current protection, aM fuses with full range semiconductor protection are commonly used to protect electric motors. Can handle routine short overloads related to startup and shutdown.
The aR fuse will quickly melt. This is a high-speed fuse that can clear major faults within a few milliseconds. But the downside is that these fuses often have high wattage losses during normal operation. Used for short circuit protection and local semiconductor protection
The gPV fuse protects the photovoltaic combiner box and is a fast, high-speed fuse that can quickly cut off the main protective electrical appliances (referred to as new energy fuses). The electrical performance of the experiment is IEC60269.6 and UL248-19 standards
gBat fuses are mainly used to protect targeted energy storage systems and batteries, and are also fast fuses. The experimental standard for fast cutting off of systems (referred to as new energy fuses ESS) is IEC60269.7
