1SNA400305R1000

Overview

The TE Connectivity 1SNA400305R1000 is a single-deck, screw clamp feed-through terminal block from the Entrelec D70/22 series. Designed for DIN rail mounting, it features a gray polycarbonate housing and supports wire gauges up to 25 mm² (4-0 AWG). The component is rated for 600 V and carries a current capacity of 159 A. It includes an end section fitting, eliminating the need for separate end caps. The unit measures approximately 74.17 mm in length and 83.82 mm in height.

Feature Summary

• Single-deck screw clamp design for secure wire termination
• Integrated end section fitting removes requirement for additional end pieces
• Closed terminal block structure optimized for mechanical rigidity
• Feed-through configuration allows continuous circuit connection

Applications

• Industrial power distribution systems requiring high current handling
• DIN rail mounted electrical enclosures and control panels
• Heavy-duty wiring connections in machinery and automation equipment

Procurement Notes

Verify the specific part number against official TE Connectivity documentation to confirm compatibility with existing DIN rail profiles and voltage requirements. Ensure that the 159 A current rating aligns with the intended load conditions. Check for any regional supply restrictions or limited availability status before placing orders, as stock levels may vary by distributor.

Selection Notes

Select this model when a robust, high-current feed-through solution is required without the complexity of assembling separate end sections. The integrated end fitting simplifies installation time and reduces component count. Confirm that the 25 mm² wire gauge capacity meets the conductor size specifications of the application. Consider the physical dimensions to ensure adequate spacing within the enclosure layout.

Part Context

This component belongs to the Entrelec D70/22 series within the broader SNA product family. It represents a specialized heavy-duty terminal block designed for demanding industrial environments. The series is known for its high current carrying capabilities and durable construction, suitable for applications where reliability under high stress is critical.

Replacement Considerations

Consult official TE Connectivity substitution guides for verified equivalent part numbers. Do not assume cross-compatibility with other terminal block series without verifying pinout, current ratings, and mounting dimensions.