DOLD 0064805 – MH9837.12/008 5-600Hz UH DC24V | JUAL DOLD 0064805 – MH9837.12/008 5-600Hz UH DC24V – Frequency Relay MH 9837 | Relay modules > Monitoring devices > Measuring relays / Monitoring relays > Measuring relays for main monitoring > MH 9837 > Frequency Relay > Frequency Relay MH 9837 > MH9837.12/008 5-600Hz UH DC24V