Phoenix Contact MACX MCR-SL-2NAM-RO-SP Amplifier

$ 215.74

Enhance safety and reliability with Phoenix Contact MACX MCR-SL-2NAM-RO-SP isolating switch amplifier, featuring SIL 2 and advanced line fault detection.

Product Description

Phoenix Contact MACX MCR-SL-2NAM-RO-SP Isolating Switch Amplifier

The Phoenix Contact MACX MCR-SL-2NAM-RO-SP isolating switch amplifier is a compact, 2-channel solution designed to process signals from NAMUR proximity sensors and switches. It reliably converts these signals into relay outputs while maintaining 3-way electrical isolation for safe system integration. Built for safety-critical tasks, it meets SIL 2 functional safety requirements, helping engineers achieve dependable signal transfer in industrial automation. With features such as line fault detection, LED status indication, and suitability for Zone 2 installation, this device addresses the common challenge of ensuring stable and interference-free communication between field devices and control systems.

The MACX MCR-SL-2NAM-RO-SP isolating switch amplifier delivers clear advantages in everyday industrial use. It minimizes downtime through quick fault identification, thanks to its built-in monitoring of cable breaks and short circuits. Flexible configuration allows it to adapt to different operating conditions, while push-in connections make wiring straightforward and efficient. Its slim DIN rail design saves valuable panel space, and the robust build ensures stable performance even under demanding conditions. Recognized by international safety approvals, it can be confidently deployed in industries such as chemical processing, oil and gas, and power generation, where accurate and isolated signal transmission is vital for smooth and safe operations.

Why Phoenix Contact MACX MCR-SL-2NAM-RO-SP?

The MACX MCR-SL-2NAM-RO-SP stands out as a precision-engineered isolating switch amplifier that merges safety, reliability, and flexibility. Its dual-channel design, SIL 2 compliance, and compact housing make it an ideal choice for industries demanding both functional safety and space efficiency. With seamless integration and rapid fault indication, it transforms complex sensor data into dependable relay outputs.

What Problem Does It Solve?

In industrial environments, inaccurate or unstable sensor signals can lead to costly downtime and safety risks. The MACX MCR-SL-2NAM-RO-SP eliminates this challenge by providing 3-way electrical isolation, robust line fault detection, and universal compatibility with NAMUR sensors. It ensures that even in harsh or hazardous zones, signals remain clear, reliable, and safe for process control systems.

 


Key Features & Specifications – Phoenix Contact MACX MCR-SL-2NAM-RO-SP: 2924294

Feature Details Benefit
Channels 2-channel NAMUR input Operates multiple sensors with one device
Isolation 3-way electrical isolation Prevents interference and ensures signal integrity
Functional Safety SIL 2 certified (EN 61508) Supports use in safety-related systems
Line Fault Detection Active/Deactive with LED indication Rapid troubleshooting reduces downtime
Outputs Relay, 1 N/O contact per channel Provides reliable switching for control integration
Supply Voltage 24 V DC (19.2–30 V DC range) Standardized supply for easy integration
Switching Capacity Up to 250 V AC, 2 A Handles industrial-grade loads with reliability
Indicators Green (power), Yellow (switching), Red (fault) Visual feedback for quick status checks
Mounting DIN rail, 12.5 mm width Compact installation saves cabinet space
Approvals ATEX, IECEx, UL, CE, DNV Certified for hazardous and marine environments
Operating Temp. -40 °C to +60 °C Reliable operation in harsh industrial conditions

Download Phoenix Contact MACX MCR-SL-2NAM-RO-SP 2924294 Datasheet

 


Commercial Information – Phoenix Contact MACX MCR-SL-2NAM-RO-SP: 2924294

Commercial Data Details
GTIN Number 4046356492096
Tariff Number 85365019
Weight 140 g (net), 179 g (with packaging)
Country of Origin Germany (DE)

 


The Applications of Phoenix Contact MACX MCR-SL-2NAM-RO-SP

1. Pump Monitoring & Protection in Petrochemical Plants

In petrochemical operations, pumps are critical assets that often run in explosive or hazardous areas. NAMUR proximity sensors mounted on pump shafts provide status signals that are routed through the isolating switch amplifier. The amplifier strengthens these weak signals, applies 3-way isolation, and instantly highlights faults such as cable breaks or short circuits. This ensures reliable condition monitoring, reduces false trips, and helps operators prevent costly downtime. By maintaining stable communication between field devices and control systems, plant safety and efficiency are greatly improved.

2. Valve Position Feedback in Hazardous Zone Installations

Industrial plants rely on precise valve control to regulate flow and pressure in pipelines. Sensors positioned on valves generate low-level NAMUR signals that need reliable transmission to safety systems. By using the isolating switch amplifier, these signals are safely converted into robust relay outputs, ready for integration into control logic. Its SIL 2 certification and built-in error detection guarantee that misaligned valves or wiring faults are promptly recognized. This capability improves operational reliability, avoids leaks or process disturbances, and enhances overall plant safety compliance.

3. Level Switch Alarm Systems in Wastewater Treatment

In wastewater treatment facilities, level monitoring devices are often exposed to harsh and wet environments where sensor signals can easily degrade. The isolating switch amplifier ensures these weak NAMUR outputs are reliably translated into control room alarms. Its fault detection and LED indication simplify maintenance, allowing staff to identify issues without dismantling equipment. With its robust build and safe isolation, the amplifier ensures critical level alarms are not missed, preventing overflow, equipment damage, and environmental hazards.

4. Signal Interface for Factory Automation & Conveyor Systems

In modern production lines, proximity sensors on conveyors and machines detect the presence, position, or speed of components. Because NAMUR outputs are inherently low power, they require amplification and reliable isolation before being processed by a PLC. The isolating switch amplifier converts these signals into strong relay outputs, ensuring dependable system response. Its selectable operating modes provide flexibility for different automation tasks, while its compact DIN rail design saves valuable cabinet space. This combination helps reduce downtime, improve accuracy, and keep manufacturing systems running smoothly.

 


Related Products & Accessories – Phoenix Contact MACX MCR-SL-2NAM-RO-SP

Category Model Name Part Number Benefits
DIN Rail Bus Connector ME 6,2 TBUS-2 1,5/5-ST-3,81 GY 2695439 Bridges supply voltage across modules, easy DIN rail installation
DIN Rail Adapter ME 6,2 TBUS-PR-ADAPTER 1136500 Enables MACX modules to connect with universal power rail systems
Partition Plate MCR-DP 1430594 Maintains safe isolating distance between Ex i and non-Ex i devices
Module Carrier TC-2D37SUB-ADIO32-2EX-P-UNI 2904684 Connects up to 16 two-channel MACX modules to I/O cards
Insulating Sleeves MPS-IH (WH/RD/BU/YE/GN/GY/BK) 0201663 – 0201731 Provides safe insulation, available in multiple colors for coding
Test Plug MPS-MT 0201744 Allows simple connection checks during commissioning or maintenance
Device Markers UC-EMLP / US-EMLP / LS-EMLP (various colors) 0819291 – 0831732 Labeling solutions for clear module identification
Power & Error Modules MACX MCR-PTB / MACX MCR-PTB-SP 2865625 / 2924184 Provides collective power supply and central fault signaling
Power Supply QUINT4-SYS-PS/1AC/24DC/2.5/SC 2904614 Reliable 24 V DC supply with protective coating
End Covers D-UKK 3/5 / D-UKK 3/5 BU 2770024 / 2770105 Covers open terminals for safety and insulation
Terminal Block UKK 5-2R/NAMUR 2941662 Screw terminal block designed for NAMUR applications
Tools SZS 0,6X3,5 Screwdriver 1205053 Insulated tool for terminal actuation and adjustments
Connector Set MACX SET-TVFKC 2-POLE 1584383 Plug set for secure connection of MACX modules
Resistor Networks FA MCR-FMR Series 1642714 – 1642820 Monitors floating contacts and supports NAMUR sensor signal conditioning

 


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