# Thermal relay module, 1 channel, temperature sensor, 5V

> Thermal relay module with 1 channel, combines an NTC sensor with an SPDT relay to automatically switch devices on or off based on temperature. Powered by 5V DC, with a potentiometer for threshold adjustment, COM/NO/NC output and a status LED. Switches up to 10A at 250VAC or 30VDC. Thermistor measuring range -10°C...+80°C, accuracy ±0.5°C. Dimensions 50 x 26mm.

- Page: https://sigmanortec.ro/en/thermal-relay-module-1-channel-temperature-sensor-5v
- Price: 14.96 RON
- Availability: In stock; 1-2 zile
- Reference: 9665 · EAN: 5948808534349
- Category: Electronic components > Temperature and Humidity Control > Thermostats
- Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage: 5 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.017 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 00:56 (Europe/Bucharest)

## Description

Compact solution for temperature monitoring and automatic control of equipment, combines NTC sensor with 1 channel relay for on or off at the set threshold. Quick adjustment from potentiometer, COM NO NC output for over or under temperature mode, 5V power supply and status LED. Switches up to 10A at 250VAC or 30VDC.
The thermal relay module is a versatile and compact solution for temperature monitoring and control of electrical devices in various applications, depending on the temperature. This module combines the characteristics of a thermal sensor with a 1-channel relay, allowing temperature monitoring and automatic activation/deactivation of devices depending on the set temperature.
The module has a potentiometer for temperature adjustment. Using the relay, depending on the connection mode (COM to NC or NO), the closed contact mode can be set on the "above the set temperature" or "below the set temperature" principle.
The relay is energized when the set temperature threshold is exceeded.
The logic and control voltage of the relay is 5VDC, the relay can control electronic equipment up to 250VAC and maximum 10A or 30VDC with 10A.
Specifications:
Supply voltage: 5VDC
Working voltage: 5V DC
Relay: 1 channel (SPDT - Single Pole Double Throw)
Maximum switching current: 10A @ 250V AC / 10A @ 30V DC
LED indicator: for relay status (on/off)
Control interface: High-Level logic for activation
Dimensions mm: 50 x 26mm
Thermistor specifications
Working voltage: 5V DC
Sensor type: NTC thermistor (negative temperature coefficient)
Temperature measurement range: -10°C to +80°C
Measurement accuracy: ±0.5°C
Analogue interface: Analogue output proportional to temperature