Lochinvar & A.O. Smith 100208231 Fuse 321042-401 Direct OEM Integration: Designed specifically

Direct OEM Integration: Designed specifically for Heil

a Danfoss 90 series 'P' version would be required

this device provides accurate ambient temperature monitoring to ensure consistent environmental control

Engineered for high-accuracy thermal monitoring

Technical Compatibility: Fully interchangeable with HKN-3153684

Lochinvar & A.O. Smith 100208231 Fuse 321042-401 Direct OEM Integration: Designed specificallyThe Lochinvar & A. O. Smith 100208231 Fuse is a critical 3. 15 Amp 250V slow blow glass fuse designed specifically for the protection of integrated control boards in high efficiency commercial boilers and water heaters. As a direct OEM replacement part, this 5x20mm cartridge fuse ensures the sensitive electronics of the Lochinvar Knight and Armor series, as well as various A. O. Smith Cyclone models, remain protected from overcurrent events and