CDL4U/BL Terminal Block Feed-Through Connector Equivalent & Substitute Parts

Part Overview

The CDL4U/BL 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 active equivalent parts essential for ongoing procurement and system maintenance. The CDL4U/BL accommodates wire gauges from 10-22 AWG (0.5-4mm²) and is rated for 35A at 600V under UL standards and 32A at 400V under IEC standards. Due to its obsolete status, sourcing alternatives from the same manufacturer's active product line is necessary to ensure supply chain continuity.

Substiute Parts

CDL4U/BL

Altech CorporationIn Stock: 763CDL4U/BL Datasheet

Current PartRFQ

CDL4UN/BL

Altech CorporationIn Stock: 884CDL4UN/BL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Matching Parameters:

• Number of Positions: 4
• Number of Levels: 2
• Termination Style: Screw
• Terminal Width: 6.0mm
• Wire Gauge Range - AWG: 10-22 AWG
• Color: Black
• Material - Insulation: Polyamide (PA66), Nylon 6/6
• Stripping Length: 9mm
• Current - UL: 35 A
• Voltage - UL: 600V
• Current - IEC: 32 A

Allowable Variations:

• Voltage - IEC: CDL4UN/BL rated at 800V (exceeds CDL4U/BL requirement of 400V)
• Wire Gauge Range - mm²: CDL4UN/BL rated for 0.2-4mm² (encompasses CDL4U/BL range of 0.5-4mm²)
• Product Status: CDL4UN/BL is Active (versus Obsolete CDL4U/BL)
• Packaging: CDL4UN/BL supplied in Bulk format

These variations represent equal or superior electrical and mechanical specifications, confirming substitution compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CDL4UN/BL is the appropriate substitute for the obsolete CDL4U/BL based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical UL and IEC current ratings (35A/600V UL and 32A/400V IEC). The CDL4UN/BL's elevated IEC voltage rating of 800V provides additional safety margin without compromising application compatibility.

Mechanical Compatibility: Identical position count (4), level configuration (2), terminal width (6.0mm), and screw termination ensure direct mechanical interchangeability in existing installations.

Wire Gauge Accommodation: The CDL4UN/BL's expanded wire gauge range (0.2-4mm²) encompasses the original specification (0.5-4mm²), ensuring compatibility with all originally specified conductor sizes.

Regulatory Compliance: The CDL4UN/BL carries ROHS3 and REACH compliance certifications, meeting current regulatory requirements for electronic component procurement. The original CDL4U/BL compliance status is not specified.

Supply Chain Status: The CDL4UN/BL is classified as Active with 807 units in stock, ensuring reliable procurement availability compared to the Obsolete CDL4U/BL status.

Frequently Asked Questions (FAQ)

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

A: Yes. The CDL4UN/BL meets or exceeds all critical electrical and mechanical parameters of the CDL4U/BL, including current ratings, voltage specifications, position count, termination style, and wire gauge accommodation. Physical dimensions and terminal configuration are identical.

Q: What is the significance of the higher IEC voltage rating on the CDL4UN/BL?

A: The CDL4UN/BL is rated for 800V IEC versus 400V IEC on the CDL4U/BL. This represents a higher voltage capability and does not restrict application compatibility. Applications designed for 400V operation remain fully compatible with the higher-rated substitute.

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

A: No. The CDL4UN/BL accommodates 0.2-4mm², which fully encompasses the original CDL4U/BL specification of 0.5-4mm². All wire sizes originally compatible with the CDL4U/BL remain compatible with the substitute.

Q: What packaging differences exist between these parts?

A: The CDL4U/BL packaging specification is not provided. The CDL4UN/BL is supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance and is determined by procurement requirements.

Q: Are there compliance differences between the two parts?

A: The CDL4UN/BL carries ROHS3 Compliant and REACH Unaffected certifications. The CDL4U/BL compliance status is not specified. Current procurement standards typically require ROHS3 compliance, making the CDL4UN/BL the appropriate choice for regulated applications.

Q: Why is the CDL4U/BL classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support. The CDL4UN/BL represents the active equivalent from the same manufacturer, ensuring continued availability and support for this terminal block configuration.