
Electrodo Baltur 49369, 3 - 18 - 0940 178 mm
This Baltur electrode (article 156.946.018, also listed as 49369 and 3-18-0940) has a length of 178 mm. It belongs to the category of ignition and ionisation electrodes used in burners. Parts of this type serve either to deliver the ignition spark or to prove the flame by conducting a small rectified current through it. Both functions place the electrode in the flame zone, making it a consumable item that is exposed to high temperature and combustion by-products. Such electrodes are selected by their physical dimensions – length, bend, insulator diameter, and the gap between the electrode tip and the burner head – as well as the mounting flange pattern and the specific burner series for which they were shaped. When replacing an electrode, the key checks are the condition of the ceramic insulator (cracks or sooting), the integrity of the tip (erosion or deposit build-up), and the electrode gap. A drifting gap is a common cause of delayed ignition or flame signal loss. The burner control and ignition transformer work directly with this component: the ignition transformer supplies the high-voltage spark, while the ionisation electrode returns a microamp signal to the flame safeguard. Because the electrode sits in the flame, it is subject to wear. Regular inspection during burner servicing is recommended. Always confirm that the replacement electrode matches the original in length, bend, and terminal type to maintain correct spark position and flame sensing distance.