CT-29 Equivalent & Substitute Parts Reference

Part Overview

The CT-29 is a 29-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring high-density terminal connectivity. This component features dual-wall barrier construction with screw termination on the top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility from 10-22 AWG.

The CT-29 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement, repair, and new design implementations where this connector type is specified.

Substiute Parts

CT-29

Curtis IndustriesIn Stock: 739CT-29 Datasheet

Current PartRFQ

CDM-29

Curtis IndustriesIn Stock: 1135CDM-29 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-29 is determined by strict equivalence across the following critical parameters:

• Number of circuits: 29
• Pitch spacing: 0.546" (13.86mm)
• Current rating: 30A minimum
• Voltage rating: 600V minimum
• Wire gauge compatibility: 10-22 AWG
• Termination type: Screw top, closed bottom
• Barrier configuration: 2 Wall (Dual)
• Mounting capability: Chassis and panel mounting
• Operating temperature: 130°C minimum
• Insulation material: Polyester thermoplastic
• Flammability rating: UL94 V-0

The CDM-29 meets all these criteria and is therefore classified as a direct equivalent substitute for the obsolete CT-29.

Parameter Comparison

Engineering Selection Recommendations

The CDM-29 is the direct equivalent substitute for the obsolete CT-29. Both components are manufactured by Curtis Industries and maintain identical electrical and mechanical specifications across all critical parameters.

The CDM-29 offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. The CDM-29 meets ROHS3 compliance, which represents an updated regulatory standard compared to the RoHS compliance of the CT-29. Both components maintain equivalent environmental and regulatory certifications including REACH unaffected status and EAR99 export classification.

For applications currently specified with CT-29 connectors, the CDM-29 provides direct pin-for-pin and form-factor compatibility without design modification or re-qualification requirements.

Frequently Asked Questions (FAQ)

Q: Can the CDM-29 be used as a direct replacement for the CT-29 in existing designs?

A: Yes. The CDM-29 is a direct equivalent substitute. All electrical ratings, mechanical dimensions, termination methods, and mounting configurations are identical. No circuit redesign or component repositioning is required.

Q: Are there any differences in packaging between the CT-29 and CDM-29?

A: The CT-29 packaging specification is not provided in the technical data. The CDM-29 is supplied in bulk packaging. Confirm packaging requirements for your specific application.

Q: What is the significance of the ROHS3 compliance on the CDM-29 versus RoHS compliance on the CT-29?

A: ROHS3 represents the current regulatory standard for restriction of hazardous substances. Both components meet hazardous substance restrictions applicable to their respective product statuses. The CDM-29 reflects current compliance documentation.

Q: Are the CT-29 and CDM-29 interchangeable in high-temperature applications?

A: Yes. Both components are rated for 130°C operating temperature and use identical polyester thermoplastic insulation material with UL94 V-0 flammability rating. Thermal performance is equivalent.

Q: What is the wire gauge compatibility for both the CT-29 and CDM-29?

A: Both components accept wire gauges from 10-22 AWG. Screw termination is used on the top entry, and closed termination is used on the bottom. Wire gauge selection must comply with the 30A current rating and 600V voltage rating.

Q: Are there any compliance or certification differences that would affect component selection?

A: Both components maintain REACH unaffected status and EAR99 export classification. The CDM-29 reflects current ROHS3 compliance documentation. No compliance barriers exist for substitution.