DOLD 0040041 – BA9837.12/020 20-60HZ UH AC240V | JUAL DOLD 0040041 – BA9837.12/020 20-60HZ UH AC240V – 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 > BA9837.12/020 20-60HZ UH AC240V