Signal Conditioning & Loop Isolation Solution — Phoenix Contact MINI MCR-SL-RPS-I-I 2864422 | MINI MCR-SL Series
The Phoenix Contact MINI MCR-SL-RPS-I-I 2864422 is a DIN-rail-mounted repeater power supply designed to galvanically isolate, amplify, and retransmit 4–20 mA analog signals in process automation and industrial control systems. It provides reliable loop power and signal conditioning in environments where ground loops, noise interference, or long cable runs compromise measurement accuracy.
Where This Product Is Used
The MINI MCR-SL-RPS-I-I is specified across a wide range of industrial and process environments where signal integrity and galvanic isolation are critical:
- Oil & Gas Processing Plants — Isolates field transmitter loops from control room DCS inputs, eliminating ground-loop interference across long cable runs in hazardous areas.
- Chemical & Petrochemical Facilities — Conditions 4–20 mA signals from pressure, temperature, and flow transmitters before feeding PLCs or SCADA systems.
- Water & Wastewater Treatment — Powers two-wire transmitters in remote pump stations and provides clean, isolated analog signals to the control panel.
- Power Generation & Utilities — Used in substation automation panels to decouple high-voltage ground references from sensitive analog input cards.
- Pharmaceutical & Food Manufacturing — Ensures measurement accuracy in GMP-regulated processes where signal noise can trigger false alarms or batch failures.
- Building Automation & HVAC — Interfaces field sensors (CO₂, humidity, pressure) with BMS controllers across multi-floor cable infrastructure.
- Machine Tool & OEM Equipment — Embedded in control cabinets to isolate analog feedback from servo drives, load cells, and position sensors.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2864422 |
| Product Series | MINI MCR-SL |
| Function | Repeater Power Supply (I/I Isolation) |
| Input Signal | 4–20 mA (2-wire / loop-powered transmitter) |
| Output Signal | 4–20 mA (galvanically isolated) |
| Supply Voltage | 24 V DC (nominal) |
| Isolation Voltage | ≥ 1.5 kV AC (input / output / supply) |
| Accuracy | < 0.1% of full scale |
| Mounting | DIN rail (EN 60715 / TS 35) |
| Housing Width | 6.2 mm (ultra-slim) |
| Operating Temperature | -25°C to +60°C |
| Protection Class | IP20 |
| Weight | 72 g |
| Manufacturer | Phoenix Contact |
| SKU / Order Code | MINI MCR-SL-RPS-I-I 2864422 |
Why Engineers Specify This Model
- Ultra-slim 6.2 mm housing — Maximizes DIN-rail density in compact control cabinets without sacrificing channel count.
- Three-port galvanic isolation — Input, output, and power supply are all mutually isolated, eliminating ground loops in complex multi-ground installations.
- Loop-powered transmitter compatibility — Directly powers 2-wire 4–20 mA field devices without requiring a separate transmitter power supply.
- High accuracy (<0.1% FS) — Meets the signal fidelity requirements of precision process control and regulatory compliance applications.
- Plug-in screw terminals — Enables fast wiring, maintenance replacement, and panel pre-wiring without rewiring field cables.
- Wide temperature range — Qualified for outdoor enclosures and non-climate-controlled industrial environments.
- Phoenix Contact ecosystem — Integrates seamlessly with MINI MCR-SL power supplies, terminal blocks, and surge protection modules.
Complete System Bill of Materials
For a complete signal conditioning loop using this repeater power supply, engineers typically specify the following complementary components:
| Component | Phoenix Contact Reference | Function |
|---|---|---|
| Repeater Power Supply | MINI MCR-SL-RPS-I-I 2864422 | Signal isolation & loop power (this unit) |
| 24 VDC Power Supply | QUINT-PS / 1AC/24DC (e.g., 2866763) | Panel 24 V DC bus supply |
| DIN Rail | NS 35/7.5 (1206281) | TS 35 mounting rail |
| End Bracket | E/NS 35 (1201578) | Module end stop |
| Surge Protection (Field Side) | MINI-MCR-SL-PT (2864435) | Transient overvoltage protection |
| Feed-Through Terminal Block | ST 2.5 (3031204) | Field wiring termination |
Compliance & Industry Standards
- CE Marking — Compliant with EU Low Voltage Directive and EMC Directive.
- UL / cUL Listed — Recognized for use in North American industrial control panels (UL 508).
- IEC 60947-5-6 (NAMUR) — Compatible with NAMUR sensor interfaces where applicable.
- EN 61000-4 Series — Tested for ESD, EFT/burst, surge, and conducted RF immunity.
- RoHS Compliant — Restriction of Hazardous Substances Directive (EU 2011/65/EU).
- ATEX / IECEx — Consult Phoenix Contact datasheet for zone-specific intrinsic safety barrier pairing requirements.
Quality Assurance & Sourcing
Konmask.com specializes in industrial automation components for B2B buyers, system integrators, and MRO procurement teams. Every unit we supply is:
- Sourced from authorized distributors or verified surplus channels with full traceability.
- Inspected for physical integrity, label authenticity, and packaging condition prior to dispatch.
- Shipped with original manufacturer documentation where available.
- Backed by our technical support team for pre-sale specification assistance and post-sale integration queries.
We maintain stock of both current-production and legacy Phoenix Contact MINI MCR-SL series modules to support ongoing plant maintenance and panel upgrade projects.
How to Source This Part
- Confirm your quantity and lead-time requirement — Contact us for real-time stock availability and bulk pricing.
- Request a quotation — Email [email protected] with your PO number, delivery address, and required delivery date.
- Place your order — Add to cart directly or submit a purchase order via email for net-terms customers.
- Receive & verify — All shipments include a packing list. Contact us within 5 business days of receipt for any discrepancy claims.
📞 Phone / WhatsApp: +0086 19859288691
📧 Email: [email protected]
Application-Specific FAQ
Q: Can the MINI MCR-SL-RPS-I-I power a 2-wire transmitter directly?
A: Yes. The repeater power supply provides loop excitation voltage to power 2-wire (loop-powered) 4–20 mA transmitters while simultaneously isolating and retransmitting the signal to the control system input.
Q: What is the maximum loop resistance supported?
A: The output compliance voltage determines the maximum load. Refer to the Phoenix Contact datasheet (Order No. 2864422) for the output voltage vs. load current curve. Typically supports loads up to 600 Ω at 20 mA.
Q: Is this module suitable for use in hazardous areas (Zone 1 / Zone 2)?
A: The standard MINI MCR-SL-RPS-I-I is rated for installation in the safe area (control room side). For hazardous area field devices, pair with an appropriate ATEX-certified Zener barrier or galvanic isolator on the field side.
Q: Can multiple units share a common 24 V DC bus?
A: Yes. All MINI MCR-SL modules are designed for parallel operation on a shared 24 V DC supply rail. Ensure the power supply is sized for the total current draw of all modules.
Q: What is the difference between RPS-I-I and RPS-UI-UI variants?
A: The I-I variant handles current-to-current (4–20 mA → 4–20 mA) signal conditioning. The UI-UI variant supports both voltage (0–10 V) and current inputs/outputs with configurable DIP switches.
Q: Do you offer calibration certificates or test reports?
A: Factory calibration is performed by Phoenix Contact. We can provide manufacturer certificates of conformance upon request. Third-party NIST-traceable calibration can be arranged — contact us for details.
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Contact: [email protected] | +0086 19859288691
