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Why choose us?
Application Industries
Ex e (Increased Safety) Motors: Mandatory requirement for thermal protection in this protection concept.
Standard Industrial Motors: For cost-effective, non-critical over-temperature trip protection.
Loads with Intermittent Overload: Equipment that may experience brief, intense heat spikes (e.g., small crushers, press cycles).
Any Motor Requiring Simple Trip: Applications where predictive maintenance is secondary to guaranteed thermal shutdown.
Popular Industries And Applications
Key Specifications
| Parameter | Detail |
|---|---|
| **Sensor Type** | PTC Thermistor (Resistance rises sharply at Curie Temperature) |
| **Trip Temperature** | Fixed (e.g., $130^{\circ}\text{C}, 145^{\circ}\text{C}, 155^{\circ}\text{C}$), based on insulation class |
| **Signal** | Digital (Trip/No-Trip) output detected by a specialized PTC relay |
| **Location** | Stator Windings (3 elements recommended) |
| **Advantages** | Simple, reliable, fast-acting protection at a lower cost than PT100 |
Hardcore Parameters
Key Advantages
**Failsafe Protection:** Guarantees a trip at the pre-set temperature, preventing thermal damage to the windings.
**Cost-Effective:** Less expensive to purchase and implement than PT100/RTD systems, requiring a simpler relay.
**Required for Ex e:** Essential safety component for increased safety motors operating in hazardous locations.
**Fast Reaction Time:** The small sensor size allows for rapid thermal response.
