21TDT1W4

Overview

The Delta Electronics 21TDT1W4 is a three-phase power line filter designed for industrial applications. It features a voltage rating of 480 VAC and a current rating of 21 A. The unit utilizes chassis mounting with screw terminals and supports terminal block-wire termination. Operating frequencies include 50 Hz and 60 Hz. Internal capacitance values are Cx1 at 1.0 uF, Cx2 at 0.68 uF, and Cy at 4.7 nF.

Feature Summary

• Provides electromagnetic interference suppression for three-phase power systems
• Supports standard industrial operating frequencies of 50 Hz and 60 Hz
• Utilizes chassis mount construction with screw terminal connections

Applications

• Industrial machinery power conditioning
• Three-phase motor drive input filtering
• Factory automation equipment protection

Procurement Notes

Verify the specific part number against official Delta Electronics documentation to ensure compatibility with system voltage and current requirements. Confirm that the chassis mounting style and terminal block-wire termination match the installation infrastructure. Check for required safety certifications such as UL, CSA, or VDE depending on regional regulatory standards before procurement.

Selection Notes

Select this component when a three-phase filter is required for 480 VAC systems with up to 21 A load current. Ensure the physical chassis mounting dimensions accommodate the available space. Verify that the terminal block-wire termination method aligns with the existing wiring harness design and connection hardware specifications.

Part Context

This component belongs to the Delta Electronics power line filter series, specifically designed for EMI/EMC suppression in industrial environments. It addresses noise reduction needs for sensitive electronic loads connected to three-phase power networks. The product line focuses on reliable performance under standard industrial electrical conditions.

Replacement Considerations

Publicly confirmed substitute part numbers for the 21TDT1W4 were not identified in available documentation. Verify electrical parameters and mechanical dimensions carefully if considering alternative manufacturers or different model numbers within the same family.