Siemens Industrial Controls 3RT2045-1AK60 Contactor 321894-709 Corrosion Resistance: 300 series stainless

Corrosion Resistance: 300 series stainless steel trim prevents pitting and ensures smooth operation in closed-loop hydronic systems

B180B maintains high signal sensitivity even when mounted behind a burner baffle plate

This OEM-spec HVAC replacement gasket is designed to provide a precision airtight seal

Always check your defrost sensor resistance against the manufacturer’s chart before replacing the board

The VAL8030 is primarily engineered for R-410A systems common in modern high-efficiency Trane and American Standard equipment

Siemens Industrial Controls 3RT2045-1AK60 Contactor 321894-709 Corrosion Resistance: 300 series stainlessThe Siemens Sirius 3RT2045 1AK60 is a heavy duty S3 size contactor designed for high demand industrial motor switching and HVACR applications. Engineered for reliability, this 3 pole unit supports a 110V 120V AC coil (50 60 Hz) and provides a robust 80 Amp AC 3 rating (37 kW at 400V) and a 120 Amp AC 1 rating for resistive loads. As the direct 3RT1045 1AK60 replacement, it fits seamlessly into the SIRIUS modular system, ensuring compatibility with