1408678

Overview

Phoenix Contact part number 1408678 is a SP 4/12 pluggable terminal block plug. It features 12 positions with a 6.2 mm pitch and accepts rigid wires from 0.08 to 6 mm², or flexible wires up to 4 mm². The unit supports a rated voltage of 800 V and a nominal current of 32 A. It utilizes push-in spring connection technology for tool-free assembly. Dimensions are 74.4 mm in width, 21 mm in height, and 41.5 mm in depth. The component meets IEC 61984 standards and has an 8 kV surge voltage rating.

Feature Summary

• Push-in spring connection mechanism enables rapid, tool-free wire termination without separate screwdrivers.
• Compliant with IEC 61984 standard for COMBI plugs, allowing safe connection under no-load or no-voltage conditions.
• Supports mixed wiring configurations including solid conductors and flexible wires with ferrules.
• Designed for secure mounting on DIN rail compatible base units within industrial control environments.

Applications

• Industrial automation signal distribution
• Control cabinet wiring interfaces
• Sensor and actuator connection points

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official catalog to ensure correct coding and accessory inclusion. Confirm that the selected variant matches the required pin count and insulation color specifications for your system integration. Cross-reference technical drawings for dimensional accuracy before finalizing procurement orders.

Selection Notes

Select this component when a 12-position interface is required for high-current signal transmission. Ensure the application environment falls within overvoltage category III and pollution level 3. Verify that the wire gauge range aligns with the available conductor types in the assembly process. Consider the physical footprint constraints relative to the DIN rail space available.

Part Context

This component belongs to the SP series of pluggable terminal blocks manufactured by Phoenix Contact. The series is designed for use with corresponding base units to create modular connection systems. These plugs facilitate easy maintenance and replacement of field wiring without disturbing the internal circuitry of the control panel.

Replacement Considerations

Direct substitutes must match the 12-position configuration, 6.2 mm pitch, and identical electrical ratings. Verify compatibility with existing base units before swapping components. Generic equivalents may lack the specific push-in spring mechanism or IEC compliance required for certified installations.