Temperature sensor DANFOSS 140F1091, 15 kOhm, black

The DANFOSS 140F1091 temperature sensor is a fixed-resistance sensing component with a nominal resistance of 15 kOhm in a black housing. It is intended for temperature measurement and control within heating systems and associated appliances where a passive, stable resistance element is required by compatible controllers, thermostats or control modules. The sensor is supplied as a replacement or for integration into residential and light-commercial heating installations and accessory assemblies.

Advantages

This sensor provides a consistent 15 kOhm resistance characteristic suitable for systems designed to accept fixed-resistance temperature inputs. The compact black housing allows discreet installation in a variety of locations and integrates with standard control wiring. As a component from DANFOSS, the unit is produced to align with common application requirements in heating control circuits, enabling straightforward replacement or upgrade without redesign of the control logic.

Suitable for

• Temperature sensing in residential boilers and central heating controllers
• Replacement of compatible thermostat probes and sensor modules
• Integration into light-commercial HVAC equipment requiring a 15 kOhm passive sensor
• Use in control cabinets or accessory panels where a fixed-resistance input is needed

Key specifications

• Sensor type: fixed-resistance temperature sensor
• Nominal resistance: 15 kOhm
• Finish: black housing
• Application area: heating systems, thermostats, controllers

How to use

Install the DANFOSS 140F1091 sensor by connecting it to the compatible input terminals of the controller or thermostat configured to accept a 15 kOhm passive temperature sensor. Ensure the electrical connections are secure and that wiring conforms to the equipment manufacturer’s polarity and terminal specifications. Position the sensor in the location representative of the medium or ambient temperature to be measured, avoiding direct exposure to heat sources or drafts that could skew readings. After installation, verify that the controller recognizes the sensor input and that temperature readings are stable before returning the system to normal operation.

Usage recommendations

Use the sensor as a direct replacement only where the control system specifies a 15 kOhm passive input. Follow the heating system and controller documentation for wiring, mounting and environmental limits. If uncertain about compatibility, consult the controller manufacturer or a qualified technician to confirm correct sensor selection and to ensure safe installation.