DOLD 0056583 – BA9837.11 10-30HZ UH AC230V 50/60HZ | JUAL DOLD 0056583 – BA9837.11 10-30HZ UH AC230V 50/60HZ – Frequency Relay BA 9837 | Relay modules > Monitoring devices > Measuring relays / Monitoring relays > Measuring relays for main monitoring > BA 9837 > Frequency Relay > Frequency Relay BA 9837 > BA9837.11 10-30HZ UH AC230V 50/60HZ