CT-11 Equivalent & Substitute Parts Reference

Part Overview

The CT-11 is an 11-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 top and closed termination on the bottom, rated for 30A at 600V with wire gauge compatibility from 10-22 AWG.

The CT-11 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new design implementations where this connector type is specified.

Substiute Parts

CT-11

Curtis IndustriesIn Stock: 1131CT-11 Datasheet

Current PartRFQ

CDM-11

Curtis IndustriesIn Stock: 797CDM-11 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT-11 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Terminal block type: Barrier Block
• Number of circuits: 11
• Pitch spacing: 0.546" (13.86mm)
• Current rating: 30A minimum
• Voltage rating: 600V minimum
• Wire gauge compatibility: 10-22 AWG
• Top termination method: Screws
• Barrier construction: 2 Wall (Dual)
• Operating temperature: 130°C minimum
• Insulation material: Polyester Thermoplastic
• Flammability rating: UL94 V-0

The CDM-11 meets all critical substitution parameters and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The CDM-11 is a direct functional equivalent to the CT-11 and serves as the primary substitute for obsolete CT-11 applications. Both components share identical electrical specifications, mechanical dimensions, and termination characteristics.

The CDM-11 carries active product status, ensuring ongoing availability and supply chain continuity. The CDM-11 meets ROHS3 compliance, representing current regulatory standards, while maintaining full compatibility with existing CT-11 circuit designs and mounting configurations.

Both components satisfy identical compliance requirements including UL94 V-0 flammability rating, REACH unaffected status, and EAR99 export classification. Selection of the CDM-11 for new designs or replacement applications eliminates obsolescence risk while preserving all functional and electrical characteristics of the original CT-11 specification.

Frequently Asked Questions (FAQ)

Q: Can the CDM-11 directly replace the CT-11 in existing applications?

A: Yes. The CDM-11 matches all critical electrical and mechanical parameters of the CT-11, including circuit count, pitch spacing, current and voltage ratings, wire gauge compatibility, termination method, and barrier construction. Physical mounting and electrical performance are identical.

Q: What is the primary difference between the CT-11 and CDM-11?

A: The CT-11 is obsolete, while the CDM-11 is active. The CDM-11 meets ROHS3 compliance versus the CT-11's RoHS compliance. All functional specifications remain identical.

Q: Are there any compatibility concerns when substituting the CDM-11 for the CT-11?

A: No compatibility concerns exist. Both components are manufactured by Curtis Industries with identical terminal block type, circuit configuration, pitch spacing, current/voltage ratings, wire gauge range, and mounting specifications.

Q: What packaging is available for the CDM-11?

A: The CDM-11 is supplied in bulk packaging, with 688 pieces currently in stock as new original inventory.

Q: Do both parts meet the same regulatory standards?

A: Both the CT-11 and CDM-11 meet UL94 V-0 flammability rating, REACH unaffected status, and EAR99 export classification. The CDM-11 additionally meets current ROHS3 compliance requirements.