DOLD 0052061 – BA9837.12/010 20-60HZ UH AC42V | JUAL DOLD 0052061 – BA9837.12/010 20-60HZ UH AC42V – 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 > BA9837.12/010 20-60HZ UH AC42V