Cylindrical Thermal Sensor TRS-P for AC Loads

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Features

Temperature range of 25°C to 130°C.

Less than 3°C tolerance.

Normally Closed Contact.

Can be used up to 30W loads.

Benefits

Durable sputtered Ruthenium Contact.

Does not require power for operation.

RoHS Compliant.

Not ESD Sensitive.

📝 Description

This TRS-P thermal reed sensor offers precise temperature sensing capabilities with an accuracy of within 2-3°C. These sensors are designed to cater to a diverse array of applications where temperature control and monitoring are critical.

One of the key features of thermal reed sensors is their load switching capability, determined by the reed switch employed, which can handle up to 30W of electrical load. This capacity ensures reliable operation in applications requiring electrical switching based on temperature thresholds.

Designed as direct replacements for traditional bimetallic strips, thermal reed sensors are specifically available in a Normally Closed (NC), Form B type contact configuration. This means that the switch remains closed under normal conditions but opens when the preset temperature threshold is reached. This functionality is essential in applications where precise temperature control and safety are paramount, ensuring prompt response to temperature changes to prevent equipment damage or ensure operational safety.

The construction of thermal reed sensors incorporates robust materials that ensure durability and reliability in various environmental conditions. This durability is crucial for maintaining consistent performance over extended periods, making thermal reed sensors suitable for demanding industrial and commercial environments.

Applications for thermal reed sensors span industries such as HVAC systems, refrigeration, medical equipment, and automotive applications, among others. Their ability to provide accurate temperature monitoring and responsive switching enhances operational efficiency and equipment longevity.

⚡️ Electrical

Parameters Unit Values
Contact Form B
Temperature Tolerance °C ±3
Contact Rating (max) W/VA 30.0
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
Insulation Resistance (min) Ω 109
Capacitance (typ) pF 0.2
 

📊 Miscellaneous

Parameters Unit Values
Operate Time (max) ms 0.35
Bounce Time (max) ms 0.30
Release Time (max) ms 0.15
Resonance Frequency (typ) Hz >2000
Operating Frequency (max) Hz 1
Operating Temperature Range °C -20 to Cutout +20
Shock Resistance (½Sin wave for 11ms) G 50
Vibration Resistance (10-2000 Hz) G 20
 

⚙️ Ordering Code

TRS-P-(Cut out temperature)-(Cable length in mm)-(Cable Termination Code)

Cut-out Temperature Range °C 25-130
Cable Termination Code Termination Type
S Stripped to 5.0 mm
T Stripped and Tinned

 

TRS-P-50-500-S denotes TRS-P Normally Closed Thermal Reed Sensor with a release of temperature of 50°C, having 500 mm cable length with Stripped ends.

Other Special Configurations: Lower Static Contact Resistance.

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🛠️ Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.

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🧰 Applications

Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the TRS-P Thermal Sensor is known to perform well.

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Reed Sensor Dynamics™, 2025