Description
The Siemens 3TX71105JC13 is a general purpose relay engineered for dependable switching performance in HVAC, building automation, and light commercial control applications. With a Single-Pole Double-Throw (SPDT) contact configuration, this relay provides both normally open and normally closed switching paths, giving system designers maximum flexibility in control circuit layouts.
Key Features
- SPDT (Single-Pole Double-Throw) contact configuration for versatile circuit control
- 15A contact current rating for reliable load switching
- 24VAC coil voltage — compatible with standard HVAC control transformer outputs
- Compact, robust construction suitable for panel mounting
- Designed for use in HVAC controls, building automation systems, and light commercial applications
- Siemens quality engineering for long service life and consistent performance
Specifications
- SKU: 3TX71105JC13
- Brand: Siemens
- Contact Configuration: SPDT (1NO/1NC)
- Contact Current Rating: 15A
- Coil Voltage: 24VAC
Applications
- HVAC system control panels
- Building automation and energy management systems
- Fan, pump, and damper control circuits
- Light commercial and industrial switching applications
The Siemens 3TX71105JC13 relay is a trusted solution for contractors and controls technicians who demand reliable, code-compliant switching components. Its 24VAC coil voltage integrates seamlessly with standard HVAC control transformers, while the 15A contact rating handles a broad range of load types.







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