1543929

Overview

The Phoenix Contact 1543929 is a PCB terminal block designed for secure electrical connections within control cabinets and industrial automation systems. It features a nominal width of 8.1 mm, supporting conductor cross-sections from 0.5 to 2.5 mm² for solid or stranded wires. The device operates at a rated voltage of 800 V and a rated current of 24 A. It utilizes a push-in spring connection mechanism for tool-free wiring installation. The component is constructed with UL94V-0 rated polyamide housing and tin-plated brass contacts, ensuring reliable performance in demanding environments.

Feature Summary

• Push-in spring connection technology enables rapid, tool-free wire insertion and removal without requiring screwdrivers.
• Compact design with an 8.1 mm pitch allows for high-density mounting on printed circuit boards.
• Robust polyamide housing provides mechanical stability and meets UL94V-0 flammability standards.

Applications

• Industrial control cabinet wiring
• Signal distribution in automation systems
• Power supply connections for low-voltage circuits

Procurement Notes

Verify the specific ordering number against the official Phoenix Contact catalog to ensure compatibility with existing rail systems and pin configurations. Confirm that the required wire gauge matches the 0.5 to 2.5 mm² specification. Check for any updated safety certifications relevant to your region before finalizing procurement orders.

Selection Notes

Choose this component when space constraints require a narrow profile terminal block with high current carrying capacity. The push-in connection is suitable for applications requiring frequent maintenance or rapid assembly. Ensure the operating environment temperature range aligns with the component's specified limits for long-term reliability.

Part Context

This terminal block belongs to the UK series of PCB connectors, widely used in European industrial standards. It complements other components in the same series, such as bridging elements and marking systems, to create complete wiring solutions. The design focuses on minimizing footprint while maintaining robust electrical performance for standard industrial signals.

Replacement Considerations

Direct substitutes must match the 8.1 mm pitch, 24 A current rating, and push-in connection type. Verify that alternative models support the same wire stripping length and housing dimensions to ensure physical compatibility with existing PCB layouts and DIN rails.

FAQ

What is the maximum wire cross-section supported by this terminal?

The terminal supports wire cross-sections up to 2.5 mm² for both solid and stranded conductors.

Is a special tool required for wiring this component?

No, the push-in spring connection mechanism allows for tool-free installation and removal of wires.