Robertshaw 1950-548 Thermopile

The Robertshaw 1950-548 Thermopile is a high-performance millivolt generator designed specifically for gas-fired heating applications requiring a reliable 750 millivolt (mV) output. Built for durability in high-heat environments, this 48-inch thermopile features a 2-lead wire configuration that ensures a stable electrical connection to your gas valve's TP/TH terminals. This gas fireplace powerpile is engineered to convert thermal energy from the pilot flame into electrical current, allowing for the operation of professional-grade millivolt control systems without the need for an external power source. It is a direct fit for many Robertshaw 2-terminal thermopile assemblies found in commercial fryers, wall heaters, and decorative gas stoves. The outer jacket is constructed to withstand consistent exposure to flame, preventing premature degradation of the internal thermoelements. For contractors performing HVAC troubleshooting, this component provides the fast response times and consistent voltage necessary to prevent nuisance lockouts and ensure dependable ignition cycles.

• Universal Compatibility: Optimized for use with Robertshaw 700 series and other high-capacity millivolt gas valves.
• Superior 750mV Output: Delivers a consistent electrical current to maintain the electromagnetic circuit under varying gas pressures.
• High-Temperature Durability: Fiberglass-insulated 48-inch leads protect against internal grounding and heat damage.
• Rapid Response: Minimizes delays in gas valve actuation by reaching peak voltage quickly after pilot ignition.

Common Questions

What causes a thermopile to fail in a millivolt system?
Failure usually results from heavy carbon buildup or oxidative degradation of the outer sheath, which insulates the junction from the heat source. If your multimeter reading drops below 325mV under load, the generator leads likely require replacement.

Can I use a 48-inch lead if my original was shorter?
Yes, the Robertshaw 1950-548 can replace shorter leads. Ensure excess wire is coiled away from direct heat sources and secured to prevent mechanical stress on the terminals.

How do I verify this is the correct pilot generator for my appliance?
Confirm your gas valve is a non-electronic millivolt type and that your pilot burner assembly accepts a 2-lead plug-in or spade terminal connection.

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.