1965801

Overview

Phoenix Contact part number 1965801 is a MSTB 2.5/4-ST CRWH terminal block plug, designed for secure electrical connections in industrial control panels and automation systems. This component features a spring-cage connection mechanism that allows for tool-free wire termination, significantly reducing assembly time while maintaining reliable contact integrity under vibration and thermal cycling conditions. The unit supports a rated current of 24 A at 300 V with a pitch of 7.62 mm, accommodating conductors from 0.08 to 4 mm².

Feature Summary

• Tool-free push-in or spring-cage connection technology for rapid wire termination
• Compact design suitable for high-density mounting on DIN rails
• Color-coded housing for easy identification and polarity marking
• Robust construction ensuring stable performance in industrial environments

Applications

• Industrial control cabinet wiring
• Automation system signal and power distribution
• Machine building interconnections
• Building management system installations

Procurement Notes

Verify the specific suffix 'CRWH' against official Phoenix Contact documentation to confirm color coding and marking specifications. Ensure compatibility with mating PCB headers or busbar systems by checking pin configurations. Cross-reference the product code with the latest datasheet to validate technical parameters before procurement.

Selection Notes

Select this model when space constraints require compact terminal blocks with high current capacity. The 7.62 mm pitch offers flexibility for various wire gauges. Consider the spring-cage feature for applications requiring frequent maintenance or rewiring without specialized tools. Verify environmental ratings if used in harsh conditions.

Part Context

The MSTB series represents Phoenix Contact's standard line of screwless terminal blocks. Part 1965801 belongs to the 2.5 mm² cross-section family, characterized by its robust plastic housing and metal contact elements. It is widely used in general industrial applications where reliability and ease of installation are prioritized over extreme miniaturization.

Replacement Considerations

Direct replacements must match the 7.62 mm pitch, 4-position configuration, and 24 A rating. Check for identical connection technology (spring-cage vs. screw) to ensure assembly compatibility. Verify voltage ratings and insulation material properties for environmental suitability.