Phoenix Contact MINI MCR-2-U-I4 Signal Conditioner

$ 168.13

Compact Phoenix Contact MINI MCR-2-U-I4 ensures precise 0–10 V to 4–20 mA conversion with 3-way isolation for reliable automation signal integrity.

Product Description

Phoenix Contact MINI MCR-2-U-I4 Signal Conditioner – Compact Isolation and Conversion

The Phoenix Contact MINI MCR-2-U-I4 signal conditioner is designed to provide dependable isolation and accurate conversion of analog signals in automation systems. It takes voltage inputs ranging from 0 to 10 V and delivers a consistent 4 to 20 mA current output, ensuring compatibility with a wide variety of control systems. Built with slim 6.2 mm housing, it saves critical DIN rail space in control cabinets. With its three-way isolation and protective circuitry, it reduces risks from electrical interference, making it a practical choice for industries that demand precision, safety, and reliability in signal transmission.

The MINI MCR-2-U-I4 offers more than simple signal conversion—it provides long-term operational stability. Its reinforced insulation and integrated protection functions prevent equipment damage and maintain accuracy under harsh conditions. The module responds quickly to input changes, reducing lag in monitoring and control loops. Engineers benefit from its low transmission error and clear status indication, which together minimize troubleshooting and maintenance. Its compliance with international safety standards and approval for hazardous zones make it highly versatile. By using this conditioner, operators ensure smooth integration of sensors and control devices while avoiding downtime caused by signal faults.

Why Phoenix Contact MINI MCR-2-U-I4?
The Phoenix Contact MINI MCR-2-U-I4 is chosen by engineers who need compact yet powerful signal conditioning. Unlike bulky alternatives, it fits seamlessly into dense control panels with its 6.2 mm width while still delivering accurate, interference-free signal transmission. Its integrated isolation, fast response, and fault monitoring make it an intelligent solution that improves process reliability. With certifications for global use and a design tailored for demanding industrial automation, this device ensures performance and trustworthiness in every application.

What Problem Does It Solve?
Signal interference and grounding issues are common challenges in automation environments, often leading to inaccurate readings, equipment failure, and costly downtime. The MINI MCR-2-U-I4 solves these issues by providing robust three-way isolation, precise voltage-to-current conversion, and built-in protective circuits. It eliminates ground loops, shields sensitive controllers from noise, and ensures signals reach PLCs or DCS systems without distortion. By turning unstable analog inputs into stable, reliable outputs, it safeguards system integrity and reduces maintenance, making it a vital component for modern, high-uptime operations.

 


Key Features & Specifications – Phoenix Contact MINI MCR-2-U-I4: 2902029

Feature Details Benefit
Input Signal 0–10 V Accepts standard voltage inputs from sensors
Output Signal 4–20 mA Provides industry-standard current output for controllers
Isolation 3-way reinforced isolation (Input/Output/Power) Eliminates ground loops, improves safety
Response Time ~10 ms Fast adaptation for real-time processes
Transmission Error ≤0.05 % of final value High accuracy for critical measurements
Power Supply 9.6–30 V DC (typ. 24 V DC) Flexible integration with control systems
Housing Width 6.2 mm Saves DIN rail space in dense installations
Operating Temp. -40 °C … +70 °C Reliable performance in harsh environments
Certifications CE, ATEX, IECEx, UL, DNV GL Approved for global and hazardous applications
Connection Type Screw connection, M3 Secure and easy wiring
Status Indication Green LED Clear supply voltage monitoring
Protective Circuit Transient protection Safeguards equipment against surges
Mounting DIN rail EN 60715 Quick and universal installation

Download MINI MCR-2-U-I4 (2902029) Datasheet

 


Commercial Data – Phoenix Contact MINI MCR-2-U-I4: 2902029

Commercial Data Details
GTIN Number 4046356649704
Tariff Number 85437090
Weight (net) 97 g
Weight (with packaging) 115 g
Country of Origin Germany (DE)

 


The Applications

1. Preventing Ground Loops in Flow Measurement

In industrial flow monitoring systems, such as chemical dosing lines or pipeline metering, sensors often generate 0–10 V signals that are prone to ground loop disturbances. The MINI MCR-2-U-I4 provides three-way isolation to break unwanted current paths and ensures a clean, interference-free output. By converting voltage into a stable 4–20 mA signal, it guarantees accurate communication with the control system. Its narrow housing also allows easy integration into crowded control panels, making it ideal for plants where space and reliability are critical.

2. Safe Signal Handling in Hazardous Areas

Chemical processing and petrochemical facilities demand equipment that can function safely in hazardous zones. The MINI MCR-2-U-I4 addresses this by isolating input, output, and supply while converting low-voltage sensor signals into robust 4–20 mA outputs. This prevents faults from transferring between circuits and protects sensitive controllers. Its reinforced insulation and global approvals support compliance with safety requirements. Engineers benefit from dependable signal transmission without the risk of sparks or electrical hazards, ensuring plant operations remain both efficient and secure.

3. Improving Control in Compressor Systems

In refrigeration units or compressed air systems, pressure sensors often supply voltage signals that can degrade over distance or be affected by electrical noise. The MINI MCR-2-U-I4 transforms these signals into a reliable current loop, making them immune to voltage drops. Its rapid response time allows controllers to react swiftly to pressure fluctuations, improving regulation and reducing mechanical strain on equipment. Compact construction and pluggable wiring options simplify installation and service, which is especially useful in systems with tight space constraints.

4. Reliable Monitoring in Water Treatment Facilities

Water treatment plants rely on sensors for level, turbidity, and chemical dosing control. These sensors may deliver low-level voltage outputs that are vulnerable to interference from pumps, mixers, and nearby electrical equipment. By isolating and converting these inputs into stable current outputs, the MINI MCR-2-U-I4 ensures dependable data transmission to SCADA or DCS systems. Operators gain consistent process visibility, enabling better regulation of treatment stages. Its slim form factor reduces cabinet footprint, while the status LED offers clear diagnostics during routine checks.

 


Related Products & Accessories – Phoenix Contact MINI MCR-2-U-I4: 2902029

Category Model / Name Part Number Description
Bus Connector ME 6,2 TBUS-2 1,5/5-ST-3,81 GY 2695439 5-pos. DIN rail bus connector for bridging supply voltage
ME 6,2 TBUS-2 1,5/5-ST-3,81 GN 2869728 Universal DIN rail bus connector with gold-plated contacts
Module Carrier TC-D37SUB-AIO16-MP-PS-UNI 2906640 Universal termination carrier with D-SUB connector, supports 16 signal conditioners
TC-D37SUB-ADIO16-MP-P-UNI 2906639 Termination carrier for 16 MINI Analog Pro units, 1:1 connection
System Adapter MINI MCR-2-V8-FLK 16 2901993 Adapter to connect 8 MINI Analog Pro devices to controllers with minimal cabling
Communication Module MINI MCR-2-V8-MOD-RTU 2905634 Enables integration into Modbus/RTU networks
MINI MCR-2-V8-MOD-TCP 2905635 Enables integration into Modbus/TCP networks
MINI MCR-2-V8-PB-DP 2905636 For PROFIBUS DP connectivity
MINI MCR-2-V8-PN 2905637 For PROFINET network integration
Connector Set FASTCON PRO-SET 2906227 Plug set with screw connection for MINI Analog Pro modules
FASTCON PRO-SET-PT 2906228 Plug set with push-in connection for MINI Analog Pro modules
Power Terminal Block MINI MCR-2-PTB 2902066 Power terminal block with screw connection
MINI MCR-2-PTB-PT 2902067 Power terminal block with push-in connection
Monitoring Module MINI MCR-2-FM-RC 2904504 Fault monitoring module with screw connection
MINI MCR-2-FM-RC-PT 2904508 Fault monitoring module with push-in connection
Accessories Tool SZS 0,6X3,5 Screwdriver 1205053 Insulated screwdriver suitable for module terminals

 


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