making it a standard replacement for L-099 and L-110 applications

out-of-the-box solution for P399 series transducer upgrades

the AM-125-48 is the modern Schneider Electric designation for the original 21-076 part

drop-in repair

Hydrolevel 550SV Low Water Cut-Off Els PW 29614 making it a standard replacementThe Hydrolevel 550SV Low Water Cut Off is a specialized safety control engineered for hot water boiler applications where a manual reset is required. This 120VAC unit (Part No. 45 551) utilizes a Safgard EL1214 SV sensing probe to monitor water levels via hydrostatic pressure and conductivity, providing 15,000 ohm sensitivity. Designed for direct mount installation via a 3 4" NPT connection, the 550SV prevents dry fire conditions by interrupting the