Siemens Industrial Controls 3RH2921-2DE11 Auxiliary Switch 323613-751 Optimized Airflow: The 22-inch diameter

Optimized Airflow: The 22-inch diameter and specific blade curvature are engineered for maximum condenser heat transfer

The "X" handle position provides clear visual confirmation of the valve status

replacing the PLA090 restores the necessary tolerances for smooth rotation

half-wave) or 24 VDC (±10%)

this 1/2 inch NPT valve features a rugged brass body and durable NBR seals designed to withstand demanding industrial environments

Siemens Industrial Controls 3RH2921-2DE11 Auxiliary Switch 323613-751 Optimized Airflow: The 22-inch diameterThe Siemens 3RH2921 2DE11 is a high performance auxiliary switch block designed for seamless integration with SIRIUS 3RT2 contactors and 3RH2 contactor relays. This front mounting module features a 1NO + 1NC (1 Normally Open 1 Normally Closed) contact configuration, engineered specifically for electronic compatible signaling in demanding industrial environments. As a direct replacement for the legacy 3RH1921 2DE11, it maintains a compact form factor