... base, fuse holder, fuse connector, fuse isolation switch, fuses Fuse Switch Disconnector, Fuse Switch, switch disconnector, fuse base, fuse holder, fuse ... -combination switches), HH15A (QA) and HH15P (QP) series disconnecting switch, HH15S (QSS) and HH15AS (QAS) HH15PS (QPS) series ... short-circuit current, used as manual main switch or master switch for infrequent operation. Among them, QSA series ...