Stator Slot RTD sensor
Kamet supplies industrial-quality stator slot RTDs that are specifically designed to be installed between the stator windings of motors and generators. These resistance temperature detectors (RTDs) are essential for protecting high-value electrical machines from overheating, which can lead to insulation damage, system failure, and costly downtime.
The RTDs are embedded directly into the stator slots, in direct contact with the windings and insulation. This placement ensures highly accurate and localized temperature monitoring – a key factor in enhancing equipment reliability, performance and safety.
Product summary
- Accurate temperature monitoring
- Enhances motor longevity
- Improves efficiency
- Early failure detection
- Ensures safety and cost savings
Stator slot applications across industries
Stator slot RTDs are used across many sectors where reliable electric motors and generators are critical, including:
- Hydroelectric power stations
- Wind turbines
- Industrial manufacturing environments
- Heavy-duty electric machinery and generator systems
In all these applications, precise temperature monitoring leads to:
- Increased motor longevity
- Improved operational efficiency
- Early detection of faults or abnormal voltage conditions
- Enhanced safety during high-demand operations
- Reduced maintenance costs due to fewer insulation failures or mechanical breakdowns

Product features and benefits
Stator slot RTDs feature sensing elements along most of their length, allowing for continuous average temperature readings across a broad area. This design ensureslocalized hot spots are detected, providing a complete and responsive view of the thermal profile within the stator slot.
Kamet’s stator slot RTDs are engineered to meet the demands of high-performance industrial environments. Key characteristics include:
- Flexible, non-inducible materials for optimal fit and performance
- Flat and thin design for seamless embedding between windings
- Bifilar construction to avoid induction-related errors
- Durability under shock, vibration, and pressure
- High accuracy, repeatability, and long-term stability
Kamet’s customization and options
Most of our stator slot RTDs are delivered as custom-built solutions, tailored to the customer’s exact application and performance requirements.
Each sensor is calibrated and built to match your system requirements. Our engineers are happy to assist in selecting the best design for your application.
Available specifications:
- Type of element: Pt100 (standard), Pt1000, Copper, Nickel, Type K thermocouple
- Single or duplex elements
- Lengths: 30 mm up to 5000 mm
- Thickness: typically between 1.3 and 2.0 mm
- Body with: depending on singel or duplex system
- Wire configurations: 2-, 3-, 4-, 6 or 8-wire systems
- Tolerance class Class A or B
- Hazardous area options: certified intrinsically safe and increased safety versions (ATEX, IECEx, KTL, KGS, BV Marine)
Kamet quality and service
When you purchase a product from Kamet, you can rely on fast and responsive customer service and consistent quality.
- Response time: within 24 hours on working days
- Delivery time: 3–4 weeks depending on design and configuration
Our team is ready to help you with technical advice, customization options, or quotations.