Distribution centers PR11

Distribution centers series PR11 are provided for operation in AC circuits with 50 Hz frequency:

• three-wire networks 380 V;
• three-wire networks 220 V;
• four-wire networks 380/220 V with insulated neutral (IT system);
• four-wire networks 220/127 V with insulated neutral (IT system);
• four-wire networks 380/220 V with earthed neutral (system TN-C);
• five-wire networks 380/220 V with earthed neutral (systems TN-S, TNC-S).

Distribution centers provide:

• three-phase power network input;
• protection of all circuits against short circuit current and overload;
• infrequent operational closing/opening of outgoing power circuits.