5. IEC Standards Overview · 第 5／6 頁
Reading SPD Labels & Markings
Decode the label before you mount the device.
Minimum checks
- System voltage vs Uc
- AC or DC rating
- Type / test class
- Up at the relevant In
- Backup protection recommendation
Status & replaceability
Note whether cartridges are pluggable and whether remote contacts are included—critical for facilities with limited shutdown windows.