Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

TRS-P Thermal Reed Sensor for AC

Thermal Reed Sensor drawing
All dimensions in mm


Switching range available from 25°C to 130°C with +/- 3°C tolerance Does not require external power for operation Normally Closed contact Sputtered Ruthenium contact RoHS Compliant and Lead-free Not Sensitive to ESD For 30W AC line voltage loads Temperature differential of 10°C max


These thermal reed sensors can accurately monitor temperature within 2-3C and are suitable for a wide range of applications. The load switching capability is that of the reed switch used, which is 30W. As these are a direct replacement to bimetallic strips, these themal reed sensors are only available in a normally closed, form B type contact, which opens when the configured temperature is reached.


Temperature tolerance °C ±3
Contact Form   B
Contact Rating (max) W/VA 30
Switching Current (max) A 1.0
Carry Current (max) A 2.0
DC Switching Voltage (max) VDC 230
AC Switching Voltage (max) VAC 230
Breakdown Voltage (min) VDC 350
Contact Resistance (max) 150
Operating Temperature °C -20 to (cut out)+20
Shock Resistance (½Sin wave for 11ms) G 50
Vibration Resistance (10-2000Hz) G 20

Ordering Code

TRS-P-(Cut out temperature in °C)-(Cable length in mm)-(Lead type)

Cut Out Temperature Lead Type Code Code  
25°C to 130°C S Stripped to 5 mm
  T Stripped and Tinned


TRS-P Normally Closed thermal reed sensor with a release of 50°C, having 500 mm cable length and Stripped ends.


Thermal sensors in sensing Boat engine temperature

Reed switches in finding boat engine temperature Luxury Yacht Reed Switch based thermal cut-outs are useful in a wide range of applications, either to take certain action...Continue reading ->

Thermal sensors in Radiator, engine, and 4WD transmission temperature sensing

Reed switches in temperature sensing Automobile Radiator Reed Switch based normally closed thermal cut-outs are useful in a wide range of automotive applications, either to...Continue reading ->

Thermal sensors in Temperature control in deep freezers, coolers, heaters, and aquariums

Reed switches in deep freezers Thermal Reed Switches are used in a wide range of white goods applications, either to take certain action like switching...Continue reading ->

Reed switches in Instant Water heaters and Power showers

Reed switches in instant water heater Bathrooms appliances such as heaters and power showers use reed switch based Flow switches to detect if the water supply...Continue reading ->

Thermal sensors in Rice cooker heater control

Reed switches in rice cooker heater control Rice Cooker Rice Cookers are kitchen appliances used to boil rice and continue to keep the rice warm and hydrated....Continue reading ->
TRS-P Thermal Reed Sensor for AC
TRS-P Thermal Reed Sensors from RRE: Normally closed, for 30W line voltage, 20 deg C to 150deg C, complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: TRS-P
3.5 based on 4 reviews