Features:
1) IDC technique adopted
2) Line test can be carried out through the protectors
3) Up to four grades of audio/visual alarms provided
4) Turnable dust covers provided
5) Patented FA8-22 and FA8-23 blocks
6) Working conditions:
a) Environment temperature: 5 - 40°C
b) Relative humidity: ≤85% (+30°C)
c) Ambient pressure: 70 - 106kPa