CT-24 Equivalent & Substitute Parts

Part Overview

The CT-24 is a 24-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications. This component features dual-wall barrier construction with screw termination on the top and closed termination on the bottom. The CT-24 operates at 600V with a 30A current rating and accommodates wire gauges from 10-22 AWG.

The CT-24 is classified as obsolete. Identification of equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for replacement and new installations where this connector type is specified.

Substiute Parts

CT-24

Curtis IndustriesIn Stock: 935CT-24 Datasheet

Current PartRFQ

CDM-24

Curtis IndustriesIn Stock: 990CDM-24 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-24 terminal block is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Parameters:

• Voltage Rating: 600V
• Current Rating: 30A
• Wire Gauge Compatibility: 10-22 AWG

Mechanical Parameters:

• Number of Circuits: 24
• Pitch: 0.546" (13.86mm)
• Number of Rows: 2
• Termination Type: Screw top, closed bottom
• Barrier Configuration: 2 Wall (Dual)
• Mounting: Chassis and Panel

Material & Compliance Parameters:

• Insulation Material: Polyester Thermoplastic
• Flammability Rating: UL94 V-0
• RoHS Compliance Status

The CDM-24 meets all specified electrical, mechanical, and material requirements for direct substitution with the CT-24. Both components share identical circuit count, pitch, voltage/current ratings, wire gauge range, termination configuration, and barrier type. The CDM-24 is manufactured by Curtis Industries and maintains active product status, ensuring ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

The CDM-24 is the direct equivalent substitute for the CT-24 barrier block connector. Both components are manufactured by Curtis Industries and maintain identical electrical specifications, mechanical dimensions, and material properties across all critical parameters.

The CDM-24 offers the advantage of active product status, ensuring continued manufacturing support and availability. The CT-24, classified as obsolete, presents supply chain risk for future procurement and replacement needs.

Both components satisfy identical compliance requirements: UL94 V-0 flammability rating, RoHS compliance (CT-24 RoHS Compliant; CDM-24 ROHS3 Compliant), REACH unaffected status, and MSL 1 moisture sensitivity classification.

For new designs and replacement applications, the CDM-24 is the appropriate selection. Existing installations using the CT-24 may be directly retrofitted with the CDM-24 without modification to mounting hardware, wiring termination procedures, or electrical circuit design.

Frequently Asked Questions (FAQ)

Q: Can the CDM-24 directly replace the CT-24 in existing installations?

A: Yes. The CDM-24 is mechanically and electrically identical to the CT-24. Mounting dimensions, circuit pitch, termination method, and electrical ratings are equivalent. Direct substitution requires no modifications to the installation.

Q: What is the primary difference between the CT-24 and CDM-24?

A: The CT-24 is obsolete; the CDM-24 is active. Both components share identical specifications. The CDM-24 represents the current production equivalent from Curtis Industries.

Q: Are the wire gauge and termination specifications identical?

A: Yes. Both the CT-24 and CDM-24 accommodate 10-22 AWG wire and feature screw termination on the top with closed termination on the bottom. Wiring procedures and terminal screw torque specifications remain unchanged.

Q: Do both components meet the same compliance standards?

A: Yes. Both components are UL94 V-0 rated, RoHS compliant, REACH unaffected, and classified as MSL 1. The CDM-24 carries ROHS3 compliance, which supersedes the RoHS compliance designation of the CT-24.

Q: What is the circuit count and pitch for these connectors?

A: Both the CT-24 and CDM-24 feature 24 circuits arranged in 2 rows with a 0.546" (13.86mm) pitch. This configuration accommodates 48 total wire entries.

Q: Are the voltage and current ratings the same?

A: Yes. Both components are rated for 600V and 30A continuous current. Electrical performance and thermal characteristics are identical.

Q: What mounting options are available?

A: Both the CT-24 and CDM-24 support chassis and panel mounting configurations. Mounting hardware and procedures are compatible between the two components.