The RM35LM33MW is a liquid level Control Relay with screw terminals and self-extinguishing plastic housing. This commercialized RM35L series modular measurement and control relay operates any position without derating, it detects by resistive probes and monitors frequency variation from your power generation set, features that the insulation between supply and measurement and supports 35mm symmetrical DIN rail conforming to EN/IEC 60715 mounting.