SIEMENS
SIEMENS 134-1510 HVAC control SPDT 35-45°F 120-240VAC
A line-voltage mechanical thermostat with SPDT switching for heating or cooling between 35 and 45 °F at 120 to 240 VAC
- ColorGray
- Controls 35–45 °F range for heating and cooling
- SPDT switch handles 16 A at 120 VAC and 8 A at 240 VAC
- Remote sensing bulb included for flexible placement
- 12 °F differential prevents short cycling
- Mechanical line-voltage design needs no programming
HVAC Control for 35-45°F Range
The SIEMENS 134-1510 is a line-voltage mechanical thermostat designed for heating and cooling systems that operate between 35 and 45 degrees Fahrenheit. It uses an SPDT switch that opens or closes on temperature rise, making it suitable for contractors and facility managers who need direct control of 120 to 240VAC circuits without programmable complexity.
Thermal Switch Action and Power Handling
The device activates on a 12-degree Fahrenheit differential with a sensitivity range spanning 15 to 55 degrees. It carries a full-load rating of 16 amps at 120VAC and 8 amps at 240VAC, allowing it to switch typical HVAC loads directly. As a mechanical unit, it operates silently and draws no control power of its own.
Remote Sensing Bulb Included
A remote sensing bulb ships with the thermostat, enabling temperature measurement at a location separate from the control housing. This supports installations where the sensor must sit in the conditioned space while the switch remains in an accessible panel. No programming or software is involved, so setup is limited to wiring and mechanical adjustment.
Highlights
- Controls 35–45 °F range for heating and cooling
- SPDT switch handles 16 A at 120 VAC and 8 A at 240 VAC
- Remote sensing bulb included for flexible placement
- 12 °F differential prevents short cycling
- Mechanical line-voltage design needs no programming
Specifications
| Brand | SIEMENS |
|---|---|
| Color | Gray |
Questions about this item
How is the remote sensing bulb on the SIEMENS 134-1510 installed, and what step do people get wrong?
Mount the bulb in the air stream using the supplied capillary tube; the common error is kinking the tube or placing the bulb where airflow is blocked, which shifts the 35 to 45 degree F control range.
What maintenance or replacement will the SIEMENS 134-1510 need later?
The mechanical SPDT switch is rated for 16A at 120VAC and 8A at 240VAC; plan to replace the thermostat when the contacts no longer make clean Open/Close on Rise cycles.
What limit shows up first under sustained use on the SIEMENS 134-1510?
The 12 degree F differential sets the minimum on/off spacing; continuous cycling at full load will hit the contact endurance limit before the 15 to 55 degree F sensitivity range is exceeded.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
