Siemens 540-100 | Siemens Terminal Box Controller For HVAC Electronic Output Systems

Description The Siemens 540-100 Terminal Box Controller provides stable electronic-output HVAC regulation across a controlled low-voltage range. It supports reliable performance in building and industrial environments where precise terminal box operation is required. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category HVAC Part Number 540-100 Subcategory HVAC Control System Board Type Terminal Box Controller Output Type Electronic Class Rating Class 2 Output Capacity 12 VA max each output Input Voltage 24 VAC 50/60 Hz Operating Voltage Range 19.2–27.6 VAC V Common 24 V V Hot 24 V System Compatibility Standard 24 VAC HVAC systems Application HVAC terminal box and zone control Mounting Style Controller board mounting Information About 540-100 The 540-100 is a member of Siemens' HVAC control family, designed to provide dependable terminal box regulation in ventilation and zoning systems. Its construction supports long-term operation in demanding building environments while maintaining consistent low-voltage performance. The controller integrates smoothly with standard 24 VAC HVAC components including sensors, actuators, and airflow modules. This configuration supports a wide range of building automation applications requiring accurate electronic control and stable power handling. Key Features Electronic Output: Provides accurate low-voltage control for HVAC terminal box functions. 19.2–27.6 VAC Range: Maintains stable performance across standard HVAC voltage levels. Class 2 Rated: Ensures safe low-voltage operation within building automation systems. 24 VAC Input: Supports direct integration with conventional HVAC electrical architectures. 12 VA Max Per Output: Prevents overload and supports balanced system operation. Robust Controller Design: Maintains reliable operation in continuous HVAC environments. HVAC System Compatibility: Works with standard zone control and airflow management hardware. Compact Layout: Simplifies installation within existing terminal box assemblies. The 540-100 delivers the reliability and precision required for stable terminal box control in HVAC automation setups.