CDL4U/W Terminal Block Connector - Equivalent & Substitute Parts

Part Overview

The CDL4U/W is a feed-through terminal block connector manufactured by Altech Corporation, designed for 4-position, dual-level applications with screw termination. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and new design implementations. The part accommodates wire gauges from 10-22 AWG (0.5-4mm²) and is rated for 35A at 600V under UL standards.

Substiute Parts

CDL4U/W

Altech CorporationIn Stock: 985CDL4U/W Datasheet

Current PartRFQ

CDL4UN/W

Altech CorporationIn Stock: 1084CDL4UN/W Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDL4U/W is determined by the following critical parameters:

• Electrical Compatibility: Current rating (UL: 35A minimum), voltage rating (UL: 600V minimum), and IEC equivalents
• Physical Configuration: 4 positions, 2 levels, 6.0mm terminal width, screw termination
• Wire Accommodation: Support for 10-22 AWG wire gauge range
• Material Specification: Polyamide (PA66) insulation material
• Mechanical Interface: 9mm stripping length, white color

The CDL4UN/W meets all substitution criteria as an active product from the same manufacturer with identical electrical ratings, physical dimensions, and material composition.

Parameter Comparison

Engineering Selection Recommendations

The CDL4UN/W is a direct functional equivalent to the CDL4U/W. Both components share identical UL electrical ratings (35A, 600V), physical configuration (4 positions, 2 levels, 6.0mm terminals), and material composition (PA66 insulation). The CDL4UN/W offers the advantage of active product status, ensuring continued availability and supply chain reliability.

The CDL4UN/W provides enhanced IEC voltage rating (800V versus 400V) and expanded wire gauge accommodation (0.2-4mm² versus 0.5-4mm²), representing improved performance margins. The substitute part carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can CDL4UN/W replace CDL4U/W in existing applications?

A: Yes. Both parts maintain identical UL electrical specifications (35A, 600V), physical dimensions (4 positions, 2 levels, 6.0mm terminal width), and screw termination interface. Wire gauge accommodation (10-22 AWG) and insulation material (PA66) are identical.

Q: What is the difference in IEC voltage rating between these parts?

A: The CDL4U/W is rated 400V IEC, while CDL4UN/W is rated 800V IEC. Both meet the same UL standard of 600V. The higher IEC rating on the substitute provides additional safety margin in IEC-compliant applications.

Q: Does the expanded wire gauge range on CDL4UN/W affect compatibility?

A: No. The CDL4UN/W accommodates 0.2-4mm² (versus 0.5-4mm² on CDL4U/W). This expanded lower range does not affect compatibility with the original 10-22 AWG specification, as the upper limit remains identical.

Q: What packaging differences exist between these parts?

A: CDL4U/W packaging is not specified. CDL4UN/W is supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Are there compliance differences between the two parts?

A: CDL4UN/W carries ROHS3 compliance and REACH unaffected status. The CDL4U/W compliance status is not specified. Both parts share EAR99 ECCN and 8536.90.4000 HTSUS classification.