DOLD 0066820 – UH6937.02PS/61 DC24V | JUAL DOLD 0066820 – UH6937.02PS/61 DC24V – Speed and frequency monitor UH 6937 | Relay modules > Safety technology > Standstill / speed monitoring > > UH 6937 > Speed and frequency monitor UH 6937 > 0066820 > UH6937.02PS/61 DC24V