CT-9 Equivalent & Substitute Parts Reference

Part Overview

The CT-9 is a 9-circuit barrier block connector manufactured by Curtis Industries, designed for chassis and panel mounting applications requiring secure screw-based termination. This component features dual-wall barrier construction with a 0.546" (13.86mm) pitch and supports wire gauges from 10-22 AWG at 30A and 600V ratings.

The CT-9 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where the original part is no longer in active manufacturing.

Substiute Parts

CT-9

Curtis IndustriesIn Stock: 962CT-9 Datasheet

Current PartRFQ

CDM-9

Curtis IndustriesIn Stock: 1168CDM-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-9 is determined by strict equivalence across the following critical parameters:

• Terminal block type (Barrier Block)
• Number of circuits (9)
• Pitch specification (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)
• Mounting configuration (Chassis, Panel)
• Operating temperature range (130°C minimum)
• Insulation material (Polyester Thermoplastic)
• Flammability rating (UL94 V-0)

The CDM-9 meets all substitution criteria as a direct functional equivalent with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CDM-9 is the direct substitute for the CT-9. Both components are manufactured by Curtis Industries and maintain identical electrical and mechanical specifications across all critical parameters. The CDM-9 is currently in active production status, whereas the CT-9 is obsolete.

The CDM-9 carries ROHS3 compliance, representing an updated regulatory classification compared to the CT-9's RoHS Compliant status. Both components maintain equivalent REACH and export classification (EAR99) designations. The CDM-9 is available in bulk packaging with higher inventory levels (1093 pcs vs. 912 pcs for the CT-9).

For new designs and production applications, the CDM-9 is the appropriate selection. For legacy system maintenance where the CT-9 was originally specified, the CDM-9 provides functional and mechanical interchangeability without design modification.

Frequently Asked Questions (FAQ)

Q: Can the CDM-9 be used as a direct replacement for the CT-9 in existing assemblies?

A: Yes. The CDM-9 is mechanically and electrically identical to the CT-9 across all specified parameters, including pitch, circuit count, current and voltage ratings, wire gauge compatibility, and mounting configuration. No design changes are required.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant designations?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents a more recent regulatory classification. Both the CT-9 and CDM-9 meet the same hazardous substance restrictions for this product category.

Q: Are there packaging differences between the CT-9 and CDM-9?

A: The CT-9 is supplied with standard packaging, while the CDM-9 is supplied in bulk packaging. This difference does not affect component performance or compatibility. Bulk packaging may offer cost advantages for high-volume applications.

Q: Do both parts support the same wire gauge range?

A: Yes. Both the CT-9 and CDM-9 accept wire gauges from 10-22 AWG with identical screw termination specifications.

Q: What is the operating temperature range for both components?

A: Both the CT-9 and CDM-9 are rated for operation up to 130°C. This specification applies to the insulation material and barrier construction.