McDonnell & Miller FS4-3J Flow Switch Els PW 17895 always verify the orifice size

always verify the orifice size if your job site exceeds this elevation to ensure proper de-rating

Rugged Electrical Specs: Rated for 15 Amps non-inductive at up to 277 V ac

OEM replacement part engineered specifically for liquid propane (LP) gas regulation in Modine heating systems

providing a clear indication that the control relay is energized

McDonnell & Miller FS4-3J Flow Switch Els PW 17895 always verify the orifice sizeThe McDonnell & Miller FS4 3J Flow Switch (Part Number 114610) is a heavy duty, general purpose liquid flow switch designed for HVAC and industrial hydronic systems. This model features a 1" BSPT connection, making it a critical component for international piping standards or specific domestic applications requiring British Standard Pipe Threads. Equipped with a Single Pole, Double Throw (SPDT) switch, the FS4 3J provides versatile signaling for