MINI MCR-SL-RPSS-I-I PHOENIX

Phoenix MINI MCR-SL-RPSS-I-I Basis unit

Brand： PHOENIX Model number：MINI MCR-SL-RPSS-I-I

Country of origin:Germany Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

Phoenix Contact basis units are specialized mounting bases designed to hold functional electronic modules, such as I/O blocks, relay inserts, or terminal devices. The base unit snaps directly onto standard DIN rails and features integrated wiring terminals—such as push-in, screw, or spring-cage technology—allowing field cabling to remain permanently connected during module installation or replacement. Many basis units feature hot-swappable architecture, enabling electronic inserts to be replaced without disconnecting wiring or disrupting power and signal buses to neighboring modules. Integrated backplane channels provide automatic distribution of power, ground, and communication signals along the DIN rail assembly.

Product Parameters

Mounting Type: Standard NS 35/7.5 or NS 35/15 DIN rail installation.
Termination Technology: Push-in connection technology, screw connection, or spring-cage connection depending on specific variant.
Rated Operating Voltage: Typically up to 24 VDC for automation I/O, or up to 250 VAC/DC for signal conditioning and relay bases.
Maximum Current Capacity: Varies by model, generally up to 8 A or 10 A per channel/terminal, with high-power variants supporting up to 32 A.
Wire Cross-Section Compatibility: Accepts rigid or flexible conductors ranging from 0.2 mm² to 2.5 mm² (AWG 24 to AWG 14).
Number of Terminal Positions: Configurable options ranging from 2-wire, 3-wire, or 4-wire connections per channel, up to multi-position bases with 16 or 32 connection points.
Operating Temperature Range: Operating ambient temperatures typically specified from -25°C to 60°C or extended ranges from -40°C to 70°C.
Housing Material: Polyamide (PA 6.6) insulation material with flammability rating UL 94 V0.
Degree of Protection: IP20 protection class for cabinet mounting.

Product Advantages

The primary benefit of a Phoenix Contact basis unit is its pre-wiring capability, which drastically reduces system assembly time, minimizes wiring errors, and simplifies maintenance.

By separating the permanent field wiring from the sensitive electronic processing modules, maintenance teams can replace damaged or upgraded electronic units quickly without touching the field cables.

Push-in connection technology allows tool-free wiring, reducing installation effort while maintaining high vibration resistance and gas-tight electrical contact.

Integrated jumper shafts and continuous backplane bus connectors streamline cross-bridging for potential distribution and communication, eliminating redundant external wiring between adjacent devices.

Important Considerations and Precautions

Ensure that the chosen basis unit is fully compatible with the specific electronic module model, as pin layouts, keying codes, and bus architectures vary across different Phoenix Contact product lines.

Observe maximum current load limits across the terminal block and backplane bus bar to prevent overheating or voltage drops along the assembly.

Always turn off power before performing wiring changes, especially when handling high-voltage signal channels or unisolated power feeds.

Ensure the DIN rail is properly grounded and that protective conductor contacts on the base unit make secure contact with the grounded rail.

Verify that conductor insulation strip lengths match the manufacturer specifications to ensure full contact engagement and prevent accidental exposure of live wires.

Product Applications

Phoenix Contact basis units are widely deployed across industrial, energy, and process automation environments to establish structured cabinet wiring and modular control architectures.

Distributed I/O Systems: Serving as the structural and connection base for I/O modules, sensor inputs, and actuator outputs in control cabinets and distributed junction boxes.
Relay and Signal Conditioning Modules: Housing pluggable interface relays, optocouplers, and signal isolation converters for process control applications.
Surge Protection Assemblies: Providing a pluggable base for surge arresters in power supply and communication line protection, allowing replacement of spent protection plugs without interrupting field loops.
Factory and Machine Automation: Connecting field instrumentation, limit switches, solenoids, and motor starters to central PLC architectures in manufacturing facilities.
Process and Energy Sector: Organizing high-density control cabinet wiring in power generation plants, water treatment facilities, and oil and gas monitoring stations.

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