Tjernlund Products 950-2064 Limit Swt 321702-401 The normally open (NO) circuit

The normally open (NO) circuit closes on that same drop

By providing the necessary physical link between the MN Converter and the equipment's internal control boards

Exact 30-Inch Length: Pre-terminated 30-inch ignition wire provides sufficient slack for proper routing away from high-heat heat exchanger surfaces

Precise Temperature Control: Heavy-duty electrical contacts provide accurate upper element regulation

Tjernlund Products 950-2064 Limit Swt 321702-401 The normally open (NO) circuitAs a veteran HVACR technician, you know that keeping a siding or power vent system operational depends on reliable safety interlocks. The Tjernlund 950 2064 Limit Switch is a critical 185 degree Fahrenheit linear limit switch specifically engineered for high performance venting applications. This spillage sensing switch is a direct replacement for Tjernlund VP 2, VP 3, WHK 2, and WHK E models, providing a manual reset safety layer that prevents burner