$ 134.09
Protect motors with Phoenix Contact EMD-SL-PTC relay. Monitors up to 6 PTC sensors, prevents overheating, and ensures reliable industrial safety.
The Phoenix Contact EMD-SL-PTC Temperature Monitoring Relay (2866093) offers a reliable solution for protecting motor windings by continuously supervising up to six PTC sensors in line with DIN standards. Built with an integrated error memory and a convenient test/reset function, it helps prevent overheating and costly downtime. Its adaptable supply voltage range from 24 V AC/DC to 230 V AC ensures flexibility across multiple industries, from automation to energy systems. Compact in size and designed for DIN rail mounting, the relay delivers dependable safety, making it a strong choice for modern industrial environments.
The Phoenix Contact EMD-SL-PTC relay is engineered to provide long-term operational security in demanding applications. Its built-in fault detection features, including short-circuit and open-circuit monitoring, allow early identification of issues before damage occurs. LED indicators provide instant status feedback, while the integrated test/reset button simplifies routine inspections. With high mechanical and electrical endurance, it is designed for continuous use under challenging conditions. By minimizing equipment failures and improving plant safety, this relay lowers maintenance costs, extends equipment life, and ensures uninterrupted operation—an essential safeguard for motors and automated systems.
The Phoenix Contact EMD-SL-PTC is not just a relay—it’s a proactive safeguard for motors and automation systems. With its ability to monitor up to six PTC sensors, integrated error memory, and flexible supply voltage options, it ensures stable operation across industries. Its compact design, long service life, and intuitive test/reset function make it a practical choice for engineers who demand both safety and efficiency in critical applications.
Overheating is one of the most common causes of motor failures and costly downtime in industrial settings. The EMD-SL-PTC relay addresses this by continuously monitoring motor winding temperatures and reacting instantly to abnormal conditions. By detecting short-circuits, open-circuits, or excessive heat before damage occurs, it prevents unplanned shutdowns, protects valuable assets, and ensures that operations run smoothly with minimal interruptions.
| Feature | Details | Benefit |
|---|---|---|
| Product Type | Temperature monitoring relay | Ensures safe operation by continuously supervising motor winding temperatures |
| Monitoring Capacity | Up to 6 PTC sensors (DIN 44081 compliant) | Provides reliable detection of overheating in motors and equipment |
| Error Memory | Integrated error memory | Retains fault status for quick troubleshooting and enhanced system safety |
| Test/Reset Function | Built-in test/reset button | Simplifies maintenance and allows easy verification of functionality |
| Supply Voltage Range | 24 V AC/DC to 230 V AC (via power modules) | Flexible integration into different control systems and environments |
| Contacts | 2 changeover (floating) contacts | Reliable signal switching for system shutdowns or alarms |
| Short-Circuit & Open-Circuit Detection | Yes, with <20 Ω short-circuit detection | Early fault recognition prevents damage and downtime |
| Indicators | LED status display | Provides clear visual monitoring of operating states and errors |
| Mechanical Life | Up to 20 million cycles | Delivers long-term durability in demanding applications |
| Electrical Endurance | 200,000 cycles at rated load | Reliable performance in high-use environments |
| Mounting Type | DIN rail (NS 35, EN 60715) | Easy and standardized installation |
| Dimensions (W x H x D) | 22.5 × 90 × 113 mm | Compact footprint saves valuable control cabinet space |
| Operating Temperature | -25 °C to +55 °C | Suitable for a wide range of industrial conditions |
| Protection Degree | IP40 housing, IP20 terminal | Ensures safe operation and user protection |
| Certifications | CE, UL/C-UL Listed, EMC compliant | Meets international safety and compliance standards |
Download Phoenix Contact EMD-SL-PTC 2866093 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918952716 |
| Traffic Number (Tariff/Customs Code) | 85364900 |
| Weight (excluding packaging) | 142.7 g |
| Country of Origin | Austria (AT) |
In large water treatment facilities, pumps must operate continuously and often face heavy loads. By placing PTC sensors in the pump motor windings and connecting them to the EMD-SL-PTC relay, operators can track rising heat levels before damage occurs. If a motor starts overheating due to clogged filters or flow variations, the relay triggers an alert or shutdown. This prevents costly repairs, reduces downtime, and ensures that clean water delivery remains uninterrupted.
Cooling and ventilation systems in shopping centers or office towers rely on compressors that frequently cycle under changing conditions. When winding temperatures climb beyond safe limits, the EMD-SL-PTC relay responds immediately, protecting the compressor from burnouts. Its visual LED signals help technicians quickly diagnose the problem. This feature is especially useful in environments where climate control is critical, as it prevents sudden equipment failure while lowering the cost of emergency repairs.
In production plants, conveyor belts are essential for moving materials and products. A jammed or overloaded conveyor can cause a drive motor to overheat within minutes. The EMD-SL-PTC relay monitors the motor windings through PTC sensors and cuts power if dangerous heat builds up. Only the affected motor is stopped, allowing the rest of the line to continue working. This selective response not only protects machinery but also keeps production interruptions to a minimum.
Wind turbines use small motors to adjust blade pitch and gearbox settings, often under harsh weather conditions. These motors are exposed to varying loads, vibration, and extreme temperatures. By integrating PTC sensors with the EMD-SL-PTC relay, operators can detect overheating early and act before major damage occurs. The system also identifies wiring faults in the sensors, ensuring reliable protection. This preventive monitoring helps extend turbine life and increases availability in the renewable energy sector.
| Category | Model | Part Number | Description | Benefit |
|---|---|---|---|---|
| Mandatory Accessory | EMD-SL-PS-24DC | 2885359 | Power module, 20–30 V DC | Required for DC supply operation |
| EMD-SL-PS-24AC | 2866103 | Power module, 20.2–26.4 V AC | Required for AC supply at 24 V | |
| EMD-SL-PS-110AC | 2866116 | Power module, 88–121 V AC | Enables operation with 110 V AC supply | |
| EMD-SL-PS-120AC | 2885731 | Power module, 108–132 V AC | Suitable for 120 V AC grids | |
| EMD-SL-PS-230AC | 2866129 | Power module, 195–264 V AC | Suitable for standard 230 V AC supply | |
| Complementary Product | EMD-SL Series | — | Other monitoring relays for voltage, current, phase | Expand system protection with multi-relay setup |
| Mounting Accessory | NS 35 DIN Rail | — | Standardized mounting rail | Ensures secure and quick installation |
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Warranty – 1-year warranty for your peace of mind.
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