Robertshaw 1950-003 Thermopile

The Robertshaw 1950-003 Thermopile is a high-output 750mV power generator specifically engineered for self-powered gas control systems in commercial and residential heating applications. This 60-inch thermopile, often referred to as a TP-75 pilot generator, features a 2-lead spade connector interface, ensuring seamless integration with standard millivolt gas valves. Designed for durability in high-cycle environments, it utilizes a stainless steel outer jacket to resist heat blistering and oxidation. The internal construction consists of high-conductivity copper and nickel alloys, separated by a mica washer to prevent electrical shorting under extreme temperatures. This model includes a PG9 pilot adapter and a Tinnerman clip, providing a versatile solution for replacing competitive pilot generators. For technicians troubleshooting standing pilot systems, this Robertshaw thermopile delivers the consistent millivoltage required to hold the electromagnetic coil open, preventing nuisance shutdowns and ensuring reliable ignition. Its 60" lead length offers the necessary reach for large fireplace inserts and furnace cabinets where standard leads fall short.

• Universal Compatibility: Includes the PG9 adapter to fit a wide range of pilot burner assemblies.
• Enhanced Conductivity: Premium copper and nickel alloy wiring maintains maximum millivolt signal integrity.
• Thermal Protection: The stainless steel jacket prevents premature failure from flame impingement.
• Stable Output: Optimized for 750mV performance to support stable gas valve operation.
• Safe Isolation: Integrated mica washers eliminate internal short-circuit risks in the pilot head.

Is the Robertshaw 1950-003 compatible with coaxial valves?
No. The 1950 series uses a two-lead spade connection. If you are servicing a system with a single threaded coaxial connection, you require the 1951 series (CP-2).

Why is my millivolt reading dropping under load?
Check for carbon buildup on the thermopile head or loose spade connectors. If the open-circuit voltage is 750mV but drops below 325mV when the valve is energized, the internal resistance has likely increased, and replacement is necessary.

Does this fit PG9 style pilot burners?
Yes, this unit is specifically bundled with the PG9 adapter for mounting into standard pilot brackets used across many fireplace and stove brands.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.