CT-12 Equivalent & Substitute Parts

Part Overview

The CT-12 is a 12-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications. This terminal block features dual-wall barrier construction with screw termination on top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility of 10-22 AWG.

The CT-12 carries an obsolete product status. Identifying equivalent substitute parts ensures continued availability for maintenance, repair, and new assembly applications where this connector type is specified.

Substiute Parts

CT-12

Curtis IndustriesIn Stock: 1104CT-12 Datasheet

Current PartRFQ

CDM-12

Curtis IndustriesIn Stock: 892CDM-12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-12 barrier block connector is determined by strict equivalence across the following electrical and mechanical parameters:

• Terminal block type: Barrier block construction
• Circuit count: 12 circuits
• Pitch spacing: 0.546" (13.86mm)
• Current rating: 30A minimum
• Voltage rating: 600V minimum
• Wire gauge compatibility: 10-22 AWG
• Termination method: Screw top, closed bottom
• Barrier configuration: Dual-wall (2 wall)
• Insulation material: Polyester thermoplastic
• Flammability rating: UL94 V-0
• Operating temperature: 130°C minimum
• Mounting type: Chassis and panel compatible

The CDM-12 meets all substitution criteria as a direct functional equivalent with identical electrical ratings, mechanical dimensions, and material specifications.

Parameter Comparison

Engineering Selection Recommendations

The CDM-12 is the direct substitute for the obsolete CT-12 barrier block connector. Both parts are manufactured by Curtis Industries and maintain identical electrical specifications, mechanical dimensions, and material properties across all critical parameters.

The CDM-12 carries active product status, ensuring ongoing availability and supply chain continuity. The CDM-12 meets ROHS3 compliance, representing current regulatory standards, while maintaining full compatibility with applications originally designed for the CT-12.

No functional or performance differences exist between these parts. Selection of the CDM-12 for new designs or replacement applications is based on product availability and active manufacturing status.

Frequently Asked Questions (FAQ)

Q: Can the CDM-12 be used as a direct replacement for the CT-12 in existing applications?

A: Yes. The CDM-12 is a direct functional equivalent with identical electrical ratings (30A, 600V), mechanical dimensions (0.546" pitch, 12 circuits), termination methods (screw top, closed bottom), and material specifications (polyester thermoplastic, UL94 V-0). No circuit modifications or mechanical adaptations are required.

Q: What is the primary difference between the CT-12 and CDM-12?

A: The CT-12 is obsolete, while the CDM-12 is an active product. The CDM-12 also carries ROHS3 compliance versus RoHS compliance for the CT-12. All electrical and mechanical parameters are identical.

Q: Are there any packaging differences between these parts?

A: The CT-12 packaging specification is not provided. The CDM-12 is supplied in bulk packaging. Confirm packaging requirements for your application.

Q: What wire gauges are compatible with both the CT-12 and CDM-12?

A: Both parts accept wire gauges from 10 AWG to 22 AWG, supporting a range of conductor sizes for 30A applications at 600V.

Q: Do both parts meet the same regulatory and compliance standards?

A: Both parts are UL94 V-0 rated, REACH unaffected, and classified as EAR99 for export control. The CDM-12 meets current ROHS3 standards, while the CT-12 met RoHS compliance. Both are MSL 1 (unlimited moisture sensitivity).