McDonnell & Miller 94-A Pump Controller THPU32HP7Y The Single Pole Double Throw

The Single Pole Double Throw (SPDT) configuration allows you to wire to the normally open (NO) or normally closed (NC) terminals depending on whether you need to break or make the circuit on temperature rise

making it a standard choice for boiler water level control and low water cutoff (LWCO) systems

Non Spring Return

The ASCO 8210G89-24V Solenoid Valve is a high-performance 2-way normally closed valve engineered for precision fluid control in demanding industrial applications

The H-923 is rated for insulation up to 600VAC RMS

McDonnell & Miller 94-A Pump Controller THPU32HP7Y The Single Pole Double ThrowThe McDonnell & Miller 94 A Pump Controller (Part Number 165500) is a heavy duty combination low water cut off and liquid level control engineered specifically for commercial and industrial steam boilers. Rated for a maximum pressure of 250 PSI, this float operated unit provides reliable burner protection and automatic feed pump cycling to maintain consistent water levels regardless of steaming capacity. Unlike standard models, the 94 A features 1 1