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Bosch 87229638580 Temperature Limit Sensor Features:
- Acts as an overheat safety control for gas condensing boilers.
- Breaks the control circuit when temperature exceeds the safe operating threshold.
- Shuts down firing before the appliance can sustain heat damage.
- Opens at a rated 105°C.
- Solid brass hex body with integral male threaded stud.
- Threads directly into the boiler for metal-to-metal contact with the protected component.
- Senses true surface temperature rather than surrounding air.
- Wrench flats on the hex allow clean torquing during installation.
- Black phenolic housing with two upright spade terminals.
- Accepts standard quick-connect leads for direct wiring.
- Alternate part number 8-722-963-858-0.
Fits These Bosch Models:
- KBR16-3.
- KBR21-3.
- KBR28-3.
- KBR35-3.
- KBR42-3.
- KWB28-3.
- KWB35-3.
- KWB42-3.
Additional Features:
The Bosch 87229638580 temperature limit sensor acts as an overheat safety control in gas condensing boilers, monitoring the temperature at its mounting point and breaking the control circuit once heat climbs past the safe operating threshold, which shuts down firing before the appliance can sustain damage. Rated to open at 105°C, it uses a solid brass hex body with an integral male threaded stud that screws directly into the boiler, seating the brass sensing face in metal-to-metal contact with the component it protects so the switch responds to true surface temperature rather than surrounding air, and the wrench flats on the hex allow it to be torqued down cleanly during installation. Two upright spade terminals extend from the black phenolic housing to accept standard quick-connect leads, letting the sensor drop into the existing wiring harness as a direct replacement without splicing or rework.