01. Material used are all non-inflammable, even if over-current flows, no self-ignition occurs thus giving high safety;
02. Hermetically sealed: sealed in a highly insulated box type cased with special cement;
03. Highly heat resistant and moisture resistant;
04. High heat radiation effect;
05. Box type closely bonded to the chassis;
06. Most suitable for printed wiring;
07. Can be used as complying with safety standard;
08. Electric apparatus control law and more.