Update Documentation
P521/EN AD/B21
MiCOM P521
Page 13/24
9.1
Dielectric withstand
IEC60255-5: 2000
2.0kVrms for one minute between all terminals and case earth (including
RS485/RS232 socket SK1).
2.0kVrms for one minute between all terminals of each independent circuit grouped
together, and all other terminals (including RS485/RS232 socket SK1).
1.0kVrms for one minute across dedicated normally open contacts of output relays.
1.0kVrms for 1 minute across normally open contacts of changeover and watchdog
output relays.
