CDL4U/R Terminal Block Connector - Equivalent & Substitute Parts

Part Overview

The CDL4U/R is a feed-through terminal block connector manufactured by Altech Corporation, designed for 4-position, dual-level electrical connections with screw termination. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations. The CDL4U/R accommodates wire gauges from 10-22 AWG (0.5-4mm²) and is rated for 35A at 600V under UL standards, with a polyamide (PA66) nylon insulation body in red.

Substiute Parts

CDL4U/R

Altech CorporationIn Stock: 1069CDL4U/R Datasheet

Current PartRFQ

CDL4UN/R

Altech CorporationIn Stock: 831CDL4UN/R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDL4UN/R qualifies as a direct substitute for the CDL4U/R based on the following critical parameters that determine functional equivalence:

• Identical mechanical configuration: 4 positions, 2 levels, 6.0mm terminal width
• Matching termination method: Screw termination
• Compatible wire gauge range: 10-22 AWG (CDL4UN/R supports 0.2-4mm² versus CDL4U/R's 0.5-4mm², providing broader compatibility)
• Equivalent current rating: 35A UL rating
• Matching voltage rating: 600V UL rating
• Identical insulation material: Polyamide (PA66), Nylon 6/6
• Same color specification: Red
• Identical stripping length: 9mm

The primary distinction is product status: CDL4U/R is obsolete while CDL4UN/R is active, with enhanced compliance certifications (RoHS3 Compliant, REACH Unaffected).

Parameter Comparison

Engineering Selection Recommendations

The CDL4UN/R is the appropriate selection for applications currently using or specifying the CDL4U/R. The substitute part maintains full electrical and mechanical compatibility while offering the following advantages:

• Active product status: Ensures ongoing availability and manufacturer support
• Enhanced regulatory compliance: RoHS3 Compliant and REACH Unaffected certifications meet current environmental and safety standards
• Improved voltage margin (IEC): 800V IEC rating versus 400V on the original part provides additional safety margin in IEC-regulated applications
• Extended wire gauge compatibility: 0.2-4mm² range accommodates smaller gauge conductors compared to the original 0.5-4mm² specification

Both parts share identical UL ratings (35A, 600V) and mechanical dimensions, ensuring direct form-fit-function replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can CDL4UN/R be used as a direct replacement for CDL4U/R in existing assemblies?

A: Yes. The CDL4UN/R maintains identical mechanical configuration (4 positions, 2 levels, 6.0mm terminal width), termination method (screw), wire gauge compatibility (10-22 AWG), and UL electrical ratings (35A, 600V). No design modifications are required.

Q: What is the difference in voltage ratings between the two parts?

A: Under IEC standards, CDL4U/R is rated 400V while CDL4UN/R is rated 800V. Both parts maintain identical 600V UL ratings. The IEC voltage difference does not affect UL-compliant applications.

Q: Does the wire gauge range difference affect compatibility?

A: The CDL4UN/R supports 0.2-4mm² versus CDL4U/R's 0.5-4mm². This represents an expansion of the lower gauge limit, providing broader wire accommodation. Existing applications using 0.5-4mm² wire remain fully compatible.

Q: What packaging differences exist between these parts?

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

Q: Are there compliance or certification differences?

A: CDL4UN/R carries RoHS3 Compliance and REACH Unaffected certifications. CDL4U/R compliance status is not specified. Both parts carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications.

Q: Why is CDL4U/R listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. CDL4UN/R represents the current active equivalent, ensuring access to new inventory and ongoing technical support.