Siemens Industrial Controls 3RT2026-1AK60 Contactor 326070-701 and ensure accurate diagnostic communication

and ensure accurate diagnostic communication across all HVAC subsystems

As the verified OEM replacement for PRS3428 and PRS2428

Corrosion Resistant: Features a robust bronze body and seat with a high-temperature EPDM diaphragm for extended service life in harsh water conditions

The spring range dictates the pneumatic pressure required to modulate the valve

the 5H0731000002 is the official manufacturer-designated updated version for 5H73100-2 and serves as a direct replacement with identical electrical and plumbing specs

Siemens Industrial Controls 3RT2026-1AK60 Contactor 326070-701 and ensure accurate diagnostic communicationThe Siemens 3RT2026 1AK60 is a heavy duty SIRIUS size S0 power contactor engineered for reliable motor switching in demanding HVACR and industrial control panels. This 3 pole IEC contactor is rated for 25A (AC 3) at 400V, making it a standard choice for 11 kW motor starters and resistive load applications. Operating on a 120V AC 60Hz coil, it features integrated 1NO + 1NC auxiliary contacts to streamline control wiring and feedback loops. Built with