Weil McLain 510-312-250 Limit Switch Els PW 17895 the DFS-221-199 features SPDT (Single-Pole

the DFS-221-199 features SPDT (Single-Pole Double-Throw) snap-acting contacts rated for 15 Amps at 277 VAC

This retrofit kit facilitates the direct mounting of high-torque electric actuators

Corrosion Resistance: Constructed from high-grade steel to resist moisture-induced oxidation common in high-humidity evaporator coils

the coiled design is specifically intended for maximum airflow contact in space sensing

Critical for maintaining proper static pressure and preventing pressure switch errors

Weil McLain 510-312-250 Limit Switch Els PW 17895 the DFS-221-199 features SPDT (Single-PoleThe Weil McLain 510 312 250 High Limit Temperature Control is a critical safety component designed for precise thermal regulation in hydronic heating systems. This aquastat replacement operates on an auto recycle logic, ensuring the burner circuit interrupts when water temperature hits the high limit setpoint to prevent boiler overheating. It features an adjustable temperature range of 140F to 240F and utilizes a 30F fixed subtractive differential,