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Siemens 540-650A Room Temperature Sensor

Siemens 540-650A room temperature sensor.

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ManufacturerSiemens

Part number540-650A

Sensing Element NTC 10k Thermistor

Temperature Range 55 to 95 °F (13 to 35 °C)

Dimensions 3-11/32" H x 2-1/2" W x 1-1/2" D

Color White plastic cover

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12-month warranty

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Veteran-owned

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Precision NTC 10k thermistor 55-95°F temperature range Digital link to TEC Interactive display and keypad White plastic cover

Product description

The Siemens 540-650A is a room temperature sensor designed for monitoring and controlling ambient temperatures in building spaces. It incorporates a precision NTC 10k thermistor for accurate and reliable temperature measurement within a range of 55 to 95 degrees Fahrenheit (13 to 35 degrees Celsius).

This sensor is typically used in conjunction with terminal equipment controllers (TEC) to provide feedback for HVAC systems, ensuring comfortable and energy-efficient building environments. Its digital link allows for viewing and adjustment of setpoints directly from the sensor's interface.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 540-650A. Secure your industrial components from a trusted source.

Technical specifications

Sensing Element	NTC 10k Thermistor
Temperature Range	55 to 95 °F (13 to 35 °C)
Dimensions	3-11/32" H x 2-1/2" W x 1-1/2" D
Color	White plastic cover
Application	Room Temperature Monitoring

Common applications

HVAC control

Building automation

Commercial spaces

Office environments

Conference rooms

Compatible systems

Compatible with Siemens Terminal Equipment Controllers (TEC) and other HVAC control systems that utilize NTC 10k thermistor inputs.

Also known as

540-650B TEC Sensor

Replaces / compatible with

This part is often replaced by newer models in the Siemens room sensor series. The 540-650B is a similar model in the Series 2000.

Technical note

Expert tip

Ensure the sensor is installed away from direct heat sources or drafts to maintain accurate room temperature readings.

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Frequently asked questions

What is the operating temperature range of the Siemens 540-650A room temperature sensor?

The Siemens 540-650A room temperature sensor operates within a range of 55 to 95 degrees Fahrenheit (13 to 35 degrees Celsius), utilizing a precision NTC 10k thermistor for accurate readings.