1551841

Overview

The Phoenix Contact part number 1551841 is a COMBICON series plug-in component designed for industrial electrical connections. It features a single-pole configuration with a 5.2 mm pitch, accommodating rigid wires from 0.5 to 2.5 mm² and flexible wires from 0.5 to 1.5 mm². The unit supports a rated voltage of 500 V and a nominal current of 17.5 A. Constructed with push-wire connection technology, it utilizes PA insulation material rated V0 for flame resistance. The component includes a safety pin on the left housing side and measures 5.2 mm in width, 20 mm in height, and 40 mm in depth.

Feature Summary

• Push-wire connection technology enables tool-free assembly and secure wire retention without screw terminals.
• Integrated safety pin mechanism prevents accidental disconnection during mating operations.
• Compact modular design allows for dense arrangement within control cabinet environments.

Applications

• Industrial automation signal distribution
• Control cabinet wiring infrastructure
• Sensor and actuator interface connections

Procurement Notes

Verify the specific product code against official Phoenix Contact documentation to confirm compatibility with existing COMBICON base units. Ensure that the application environment adheres to the specified overvoltage category III and pollution level 3 ratings. Cross-reference technical data sheets for precise mechanical dimensions and thermal derating curves before final integration into system designs.

Selection Notes

Select this component when a single-channel connection with rapid installation capabilities is required. The push-wire mechanism offers faster assembly compared to traditional screw-terminal variants. Consider the physical dimensions and pitch requirements to ensure adequate spacing within the terminal block row. Verify that the wire gauge matches the specified cross-section limits for optimal contact performance.

Part Context

This component belongs to the COMBICON product family, which provides standardized solutions for power, signal, and data transmission in industrial settings. The series is characterized by high reliability and modular expandability, supporting various connection technologies including spring and screw types across multiple pole counts.

Replacement Considerations

Consult official Phoenix Contact substitution lists for compatible alternatives. Generic equivalents may not match the specific safety pin geometry or push-wire tension requirements necessary for reliable operation in critical industrial applications.