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Specification & Description
| Specification | Description |
|---|---|
| Part Number | MCR-SL-PT100-SP |
| Manufacturer | Phoenix Contact |
| Sensor Compatibility | Pt 100 (IEC 60751/EN 60751) |
| Temperature Measuring Range | -100 °C to +700 °C |
| Connection Method | 2-wire system |
| Switching Output | Relay output with 1 PDT |
| Contact Material | AgSnO, hard gold-plated |
| Operate Delay Time | Approx. 6 ms |
| Dropout Delay Time | Approx. 200 ms |
| Status Display | Red LED (short-circuit/wire break), Yellow LED (relay active) |
| Supply Voltage Range | 20 V DC to 30 V DC |
| Maximum Current Consumption | < 30 mA |
| Connection Method | Pluggable screw connection |
| Conductor Cross Section Solid | Min. 0.2 mm² to Max. 2.5 mm² |
| Conductor Cross Section Stranded | Min. 0.2 mm² to Max. 2.5 mm² |
| Conductor Cross Section AWG | Min. 24 to Max. 14 |
| Stripping Length | 8 mm |
| Screw Thread | M3 |
| Width | 12.5 mm |
| Height | 99 mm |
| Depth | 114.5 mm |
| Maximum Temperature Coefficient | < 0.01 %/K |
| Temperature Coefficient Typical | 0.005 %/K |
| Linearity Error | < 0.1 % |
| Ambient Temperature (Operation) | -20 °C to +65 °C |
| Degree of Protection | IP20 |
| Housing Material | Polyamide PA non-reinforced |
| Mounting Position | Any |
| Approvals | CE-compliant, UL 508 Recognised, cUL Recognised, EAC, cULus Recognised |
The Phoenix Contact MCR-SL-PT100-SP is a precision temperature monitoring relay designed for seamless integration with Pt 100 sensors in a 2-wire configuration. This component is adept at converting the resistance measurements from the Pt 100 sensor into binary switching signals, offering a broad temperature measuring range from -100 °C to +700 °C.
Engineered for accuracy, the MCR-SL-PT100-SP features an adjustable switching hysteresis and a relay PDT output, ensuring reliable performance in various industrial applications. The switching point can be finely tuned using internal DIP switches for coarse adjustments and an external potentiometer for fine-tuning, allowing for precise control over the temperature thresholds.
The relay output is constructed with high-quality, hard gold-plated contacts capable of handling a maximum switching voltage of 30 V AC/36 V DC, with a maximum switching current of 50 mA for the gold layer and 2 A for a destroyed gold layer at 250 V AC. The unit also includes a red LED for error indication (short-circuit/wire break) and a yellow LED to signal relay activity.
With a compact housing material of non-reinforced Polyamide PA, the device measures just 12.5 mm in width, 99 mm in height, and 114.5 mm in depth, making it suitable for space-constrained environments. The MCR-SL-PT100-SP operates within an ambient temperature range of -20 °C to +65 °C and is rated at IP20 for protection against solid objects.
This temperature monitoring relay is CE-compliant and recognised by UL standards, ensuring it meets the stringent requirements for industrial applications in the UK and beyond. Its electrical isolation feature enhances process safety by providing galvanic separation between the sensor signal and the monitoring circuitry.
The Phoenix Contact MCR-SL-PT100-SP is an essential component for industries requiring precise temperature monitoring and control, such as in process engineering, manufacturing, and automation systems. Its robust design and flexible configuration options make it a reliable choice for maintaining optimal operating conditions and safeguarding critical processes.
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Frequently Asked Questions
What is the temperature range that the MCR-SL-PT100-SP can monitor?
The MCR-SL-PT100-SP is designed to monitor temperatures ranging from -100 °C to +700 °C, making it suitable for a wide range of industrial applications.
Can the MCR-SL-PT100-SP be used with different types of RTD sensors?
This temperature monitoring relay is specifically designed for use with Pt 100 sensors in a 2-wire system, according to IEC 60751/EN 60751 standards.
What type of output does the MCR-SL-PT100-SP provide?
The device features a relay output with 1 PDT (single pole double throw) contact, which can be used to control external devices based on the temperature readings.
How is the switching hysteresis adjusted on the MCR-SL-PT100-SP?
The switching hysteresis can be adjusted using the DIP switches and potentiometer located inside the device, allowing for precise control of the temperature switching points.
What is the power supply requirement for the MCR-SL-PT100-SP?
The MCR-SL-PT100-SP requires a supply voltage range of 20 V DC to 30 V DC, with a maximum current consumption of less than 30 mA.
What type of connection method is used for the MCR-SL-PT100-SP?
The device utilises a pluggable screw connection method, which facilitates easy installation and maintenance.
What is the degree of protection provided by the MCR-SL-PT100-SP?
The MCR-SL-PT100-SP is rated with an IP20 degree of protection, indicating that it is protected against solid objects larger than 12.5 mm but not against water.
What are the dimensions of the MCR-SL-PT100-SP?
The dimensions of the MCR-SL-PT100-SP are 12.5 mm in width, 99 mm in height, and 114.5 mm in depth.
How can I ensure the MCR-SL-PT100-SP is functioning correctly?
The MCR-SL-PT100-SP is equipped with status display LEDs. A red LED indicates a short-circuit or wire break, and a yellow LED shows when the relay is active.
What is the ambient temperature range for operating the MCR-SL-PT100-SP?
The MCR-SL-PT100-SP can operate within an ambient temperature range of -20 °C to 65 °C.
