Phoenix Contact 2902849 Temperature Transducer – MINI MCR-RTD-UI-NC

The Phoenix Contact MINI MCR-RTD-UI-NC is a compact, configurable resistance thermometer measuring transducer designed for precise signal conversion of 2-, 3-, and 4-wire RTDs and resistive sensors into standard current or voltage signals. With DIP switch or software configuration, 3-way electrical isolation, and integrated fault monitoring, it provides a reliable solution for temperature signal processing in industrial applications.

Ideal for applications with limited panel space, the 6.2 mm wide device is part of the MINI Analog series and supports configurable measuring ranges up to –200°C to +850°C, with output signals including 0(4)–20 mA or 0(1)–10 V.

Technical Specifications

Model: MINI MCR-RTD-UI-NC
Part Number: 2902849
Product Type: Temperature Transducer
Input Types: RTD sensors (Pt, Ni, Cu), linear resistance sensors
Output Signal: Configurable 0(4)–20 mA, 0(1)–5/10 V
Mounting Type: DIN rail (EN 60715)
Connection Type: Screw terminals
Dimensions (W × H × D): 6.2 × 93.1 × 101.2 mm
Weight: Approx. 80 g

Input Characteristics

• Sensor Types Supported: Pt, Ni, Cu RTDs; linear resistive sensors
• Connection Modes: 2-, 3-, and 4-wire
• Temperature Range: –200°C to +850°C (sensor-dependent)
• Minimum Range Span: 50 K
• Input Current (RTD): ~200 µA
• Max Conductor Resistance (RTD): ≤ 25 Ω per leg
• Linear Resistance Range: 0–4000 Ω (min. 10% span)
• Number of Inputs: 1

Output Characteristics

• Number of Outputs: 1
• Output Signal (Voltage):
  • 0–5 V
  • 1–5 V
  • 0–10 V
  • 10–0 V
• Output Signal (Current):
  • 0–20 mA
  • 4–20 mA
  • 20–0 mA
  • 20–4 mA
• Max Voltage Output: ~12.3 V
• Max Current Output: 24.6 mA
• Voltage Output Load: ≥ 10 kΩ
• Current Output Load: ≤ 500 Ω
• Ripple: < 20 mVPP

Isolation & Signal Behavior

• Isolation Type: 3-way (Input/Output/Power Supply)
• Rated Isolation Voltage: 50 V AC/DC
• Test Voltage: 1.5 kV AC (60 s)
• Step Response Time (0–99%):
  • 200 ms (2-wire)
  • 500 ms (3-/4-wire)
• Temperature Coefficient: 0.01 %/K
• Transmission Error (RTD):
  • Pt/Ni: ≤ 0.1%
  • Cu: ≤ 0.3%

Power Supply

• Voltage Range: 9.6–30 V DC
• Current Consumption: < 27 mA @ 24 V DC
• Power Consumption: ≤ 700 mW (at 20 mA, 500 Ω load)
• Power Bridge Option: Yes, via TBUS rail connector (ME 6,2 TBUS-2)

Configuration & Communication

• Configuration Options:
  • DIP switches (basic setup)
  • Software (extended setup)
• Interface: S-PORT (IFS)
• Status LED: Red (fault indication)

Mechanical & Connection Data

• Connection Method: Screw terminal
• Conductor Sizes:
  • Rigid/Flexible: 0.2–2.5 mm²
  • AWG: 26–12
  • Stripping Length: 12 mm
• Housing Material: PBT (RAL 6021 green)
• Flame Rating: UL 94 V-0
• DIN Rail Mounting: EN 60715

Environmental & Reliability

• Protection Class: IP20
• Overvoltage Category: II
• Pollution Degree: 2
• Operating Temperature: –20°C to +65°C
• Storage Temperature: –40°C to +85°C
• Humidity (operation): 5–95% RH (non-condensing)
• Altitude: ≤ 2000 m
• Standards: EMC Class A product (EN 61000 series)
• Fire Protection (Rail): DIN EN 45545-2 HL1–HL2 (R22, R23, R24)

Applications

Ideal For:

• Temperature signal conversion in automation panels
• RTD signal conditioning in process instrumentation
• High-density DIN rail installations
• Configurable sensor interfaces for control systems
• Isolated 4–20 mA temperature loop integration

Key Features & Benefits

✅ Wide Sensor Support: Accepts Pt, Ni, Cu, and linear resistance sensors.

✅ Flexible Outputs: Provides both analog current and voltage signal formats.

✅ 3-Way Isolation: Ensures safety, accuracy, and noise immunity.

✅ Compact Housing: Just 6.2 mm wide for space-saving installation.

✅ Configurable by DIP or Software: Simple setup with optional advanced control.

📦 Available from Drive Outlet Megastore

The Phoenix Contact MINI MCR-RTD-UI-NC delivers precision, safety, and versatility in temperature signal conditioning. Ideal for RTD integration into analog PLC or DCS inputs with full isolation and DIP/software configurability.

Need help selecting compatible RTD sensors or signal wiring accessories? Contact our signal processing experts here.

Phoenix accuracy, Drive Outlet efficiency — temperature measurement, refined.