| Attribute | Value |
|---|---|
| Manufacturer | Nam Il Engineering Co. |
| Model | Tr-100 |
| Type | Thermistor Relay |
| Voltage | 110V / 220V |
| Name | Temp Controller |
| Operating Temperature | 0~60°C |
| Power | AC 85~260V ±10% 50/60Hz |
| Sensor Operating Range | Trip: 2400~4000 Ω Reset: 1500~2400 Ω |
| Lead Resistance | Under 10 Ω |
| Weight | 380 gm |
| Ref No | 71913 |
What is the Nam Il TR-100 Thermistor Relay?
The TR-100 is a thermistor relay developed by Nam Il, an established maker that produces high-quality electrical protection products. This product is specially made to monitor motor temperature using PTC thermistors built into motor windings. After crossing a critical limit, the TR-100 responds by shutting down the motor circuit to avert possible damage.
Key Features of the TR-100 Thermistor Relay
Precision Temperature Detection
The TR-100 employs Positive Temperature Coefficient (PTC) thermistors that have a high resistance increase with temperature. This change is rapidly sensed and enables immediate system response.
Reliable and Robust Construction
Designed for the industrial environment, the TR-100 has a compact size with robust construction that makes it ideal for tough environments such as marine, factory, and outdoor applications.
LED Status Indicator
An integrated LED gives definite indication of the relay status—assisting operators in quickly identifying faults or overheating conditions without having to inspect manually.
Fast Reaction Time
Optimized to respond fast when hazardous temperatures are detected, reducing the possibility of damage to motors or equipment connected to them.
Wide Compatibility
The relay supports a wide range of motor types and is widely utilized in automation systems, control panels, marine systems, and heavy-duty machinery.
How It Works: Basic Operation Explained
The relay is linked to PTC thermistors inserted in the motor windings. As the motor operates and warms up, the resistance of the PTC thermistors increases gradually. When the resistance exceeds a predetermined value—meaning overheating—the TR-100 sends a trip signal to the control system or motor starter, thus switching off the motor to avoid damage.
When the temperature returns to a safe level, the system can be reset manually or automatically based on your configuration.
Typical Uses of the TR-100 Thermistor Relay
Industrial Motors: Employed in factories to guard electric motors against overheating due to overload or obstructed ventilation.
HVAC Systems: Provides thermal protection for air handling units and compressors.
Marine Equipment: Perfect for shipboard machinery that demands reliable temperature sensing in cramped and harsh environments.
Pumps and Fans: Shields pump motors and industrial fans from damage when operating under high-load or high-temperature conditions.
Generators: Extends the life of backup or continuous-run generators by ensuring thermal safety.
Why Nam Il TR-100?
Proven Reliability: Rely on by technicians and engineers in many industries.
Ease of Installation: Easy wiring and installation process, with easy-to-follow instructions included.
Long-Term Savings: Avoids expensive motor repair and downtime, which can cause production or operations to be halted.
International Application: Applied globally to OEM panels and retrofit applications owing to its suitability and performance.
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