Umubiri w'icyuma gikozwe mu miyoboro ya porcelain ikomeye ya 95% AL203. Umucanga wa quartz mwiza cyane n'impapuro za feza/umuringa 99.99% byuzuyemo ifeza n'umuringa bifunze neza kandi bihambiriwe neza imbere mu muyoboro. Ubuso bw'aho bihurira butwikiriwe n'ifeza.
| Icyitegererezo | Ingano ya fuse (mm) | Imitwe | Voltage ifite amanota (V) | Igipimo cy'umuvuduko (A) |
| Ishingiro rya DC rya RT18-32 rya DC | 10X38 | 1/2/3/4 | DC1000V | 32 |
| CJPV-32L | 10X85 | 1 | DC1500V | 32 |