Siemens Industrial Controls 3RT2046-1AC20 Contactor 319848-301 the NEMA 4X rating means

the NEMA 4X rating means the housing is protected against windblown dust

This dual-purpose component features a 10

Engineered with stainless steel construction and high-grade bimetal connections

meaning it will re-close the circuit once the system pressure drops back down to 450 PSI

It is functionally identical and serves as the current replacement part for the older "AA" suffix model

Siemens Industrial Controls 3RT2046-1AC20 Contactor 319848-301 the NEMA 4X rating meansThe Siemens 3RT2046 1AC20 is a heavy duty 3 pole power contactor designed for high demand industrial motor control applications. Engineered for AC 3 switching, this S3 frame size unit handles motor loads up to 45 kW at 400V, making it a reliable choice for large scale HVACR equipment and heavy machinery. It operates on a 24V AC 50 60Hz coil voltage, providing consistent actuation in control circuits. The integrated 1 NO + 1 NC auxiliary contacts allow