DOLD 0067978 – MH9837.12 1.5-200HZ UH AC/DC24-60V | JUAL DOLD 0067978 – MH9837.12 1.5-200HZ UH AC/DC24-60V – 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 1,5-200HZ UH AC/DC24-60V