1157857

Overview

Phoenix Contact part number 1157857 is an Ex i-NAMUR signal conditioner belonging to the MINI MCR-EX series. It functions as an isolation switch amplifier designed for operating proximity sensors and switches in hazardous areas. The device transmits signals to the control level via a solid-state relay output. It features spring terminal termination and DIN rail mounting. The unit operates within a temperature range of -40°C to +70°C.

Feature Summary

• Ex i-NAMUR signal conditioning for proximity sensors
• Solid-state relay output for control level transmission
• DIN rail mounting with spring terminal connections

Applications

• Operating proximity sensors in hazardous areas
• Switch signal conditioning
• Industrial automation control systems

Procurement Notes

Verify the complete ordering code matches MINI MCR-EX-NAM-RO-PT. Confirm Ex certification requirements align with local hazardous area regulations. Check datasheet for specific insulation and safety parameters before integration.

Selection Notes

Select this component when isolating NAMUR sensor signals is required. Ensure input/output compatibility with existing control interfaces. Verify ambient temperature limits fit the installation environment.

Part Context

This module is part of Phoenix Contact's MINI MCR-EX series, specialized for explosion protection applications. It provides galvanic isolation between field devices and control systems while maintaining intrinsic safety barriers.

Replacement Considerations

No public substitute part numbers are confirmed in available documentation.