What is the difference between this and the 45CG20AJ

This 500 Ohm resistor is typically installed in parallel at the input terminals of the receiving controller or actuator to drop the 4-20mA signal into the required 2-10Vdc range

making it a staple for your service truck when addressing furnace manifold adjustments or burner conversions

Common Questions: Is the SR3B-05 compatible with 8-pin relays

5" x 5" large-format dimensions effectively hide old mounting holes and paint lines

Armstrong Furnace R46827-001 Ignitor What is the difference betweenThe Armstrong Furnace R46827 001 Ignitor is a high performance silicon nitride hot surface ignitor engineered for precise ignition in residential heating systems. This direct OEM replacement part is critical for restoring reliable operation to Armstrong gas furnaces and compatible AirEase or Ducane equipment. Unlike older silicon carbide models, the nitride construction offers superior durability and resistance to oxidation, ensuring consistent