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

It features a manual lift stem for system troubleshooting and vacuum pull-down

Common Questions What causes a Trane rollout fusible link to blow

making it a staple for contractors prioritizing space-saving solutions and system longevity

Maximum Pressure Durability: Rated for up to 650 PSIG

Hydrolevel 550SV Low Water Cut-Off Els PW 29614 the AM-125-48 is the modernThe 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