non-programmable 24V thermostat engineered for contractors needing a reliable interface for single-stage heating and cooling systems

the actuator converts the 4-20mA signal to a 2-10VDC input for seamless modulation

is a heavy-duty 1 1/8" ODF vibration absorber engineered specifically for high-pressure refrigeration and air conditioning circuits

Standard protocol dictates replacing the flange gasket every time the pump is pulled or the piping is disconnected to ensure a fresh compression seal

Siemens Industrial Controls 3RH2911-1HA30 Contact 328140-751 non-programmable 24V thermostat engineered forThe Siemens Sirius 3RH2911 1HA30 is a high reliability, front mounted auxiliary switch block engineered for seamless integration with SIRIUS 3RT2 power contactors and 3RH2 contactor relays. This 3 pole module features 3 Normally Open (N O) contacts, providing essential feedback signals for PLCs, status indicators, or interlocking logic in complex control circuits. Designed for rigorous industrial environments, it supports a wide voltage range