There are two kinds of accessories, namely 63A shell frame accessories: AX-X1 auxiliary contact, AL-X1 auxiliary alarm contact, SHT-X1 SHunt release device, UVT-X1 undervoltage release device, OVT-X1 overvoltage release device, OUVT-X1 overvoltage release device; And 125A frame accessories: AX-X3 auxiliary contact, AL-X3 auxiliary alarm contact, SHT-X3 shunt release, UVT-X3 undervoltage release, OVT-X3 overvoltage release, OUVT-X3 overvoltage release.